[[caption-width-right:350:O'Brien's not only a good engineer, but a good dad as well.]]

[[folder:Season 1]]

!!The Emissary
* In the very first episode, there's a rather understated one between O'Brien and [[Series/StarTrekTheNextGeneration Captain Picard]]. During the episode, O'Brien transfers from the ''Enterprise'' to [=DS9=] as part of a promotion. When the time finally comes to leave, he stops by the captain's ready room on the bridge, but decides against interrupting when told that Picard is busy at the moment. But when he heads to the transporter room, Picard walks in right after being told that O'Brien stopped by to see him.
-->'''Picard:''' This is your favorite transporter room, isn't it?
-->'''O'Brien:''' Number three, yes, sir.
-->'''Picard:''' You know, yesterday I called down here and I asked for you without thinking… it won't be quite the same.
-->'''O'Brien:''' It's just a transporter room, sir.
** The whole scene is very understated but also meaningful. Even the comment about it being "just a transporter" is perfectly in O'Brien's character, pretty much reassuring the captain that it'll be just fine without him to look after things. And O'Brien gets the perfect sendoff from his [=ST:TNG=] career when Picard himself takes over the transporter controls and [[BookEnds personally beams O'Brien away to his new station]].
** The pilot earns its Heartwarming stripes by the mere CharacterDevelopment TheCaptain, okay really Commander, undergoes in the space of one episode. When we first meet Sisko, he's consumed with rage and regret over the death of his wife, going so far as to come ''this close'' to outright insubordination to Captain Picard, such is his contempt for the man he holds responsible for his wife's death. He doesn't want to be in Starfleet and he doesn't want to be on a wrecked Cardassian station. But, a run-in with some non-corporeal aliens and Sisko rediscovers that the end of one thing is an opportunity for something different; maybe something greater… this is one of ''Franchise/StarTrek'''s founding themes. The revitalized Commander asks Picard to rescind his request for a transfer and makes it clear he's at [=DS9=] to stay. Picard simply smiles and wishes Sisko good luck before shaking hands and leaving.
* A nice touch production-wise is that as the Enterprise departs, the music shifts from the TNG theme to [=DS9=]'s, a nice musical torch-passing moment.
!!A Man Alone
* Keiko wants to open a school for children aboard [=DS9=] so they can stay out of trouble. She brightens up considerably when Sisko, a father himself, agrees to provide whatever she needs to make it happen.
* When Odo is accused of murder, several customers at the bar talk of how little they know of him and how he's the only person left from the Cadassian rule. Quark quickly speaks up in Odo's defense.
-->'''Quark''': Nobody knows him like I do. He's an ill-tempered, overbearing, cross-patch. But he was no Cardassian collaborator, and he's no killer.
-->'''Zayra''': I can't believe you're defending him, Quark. You're his worst enemy.
-->'''Quark''': Guess that's the closest thing he has in this world to a friend.
** Quark also offered to help find who vandalized Odo's office.


!!Captive Pursuits



!!The Passenger

!!Move Along Home
* "Move Along Home". This one's unorthodox, but I find it sweet how Sisko joins in the Allamaraine skipping chant as if he were a little kid playing. Bear in mind, he has a son, so that's something he might be tapping, especially since the two had recently had a discussion about how Jake was getting older.
** The same episode had a heartwarming moment with Quark. He is playing a game with the aliens of the week where several members of the station's crew are used as playing pieces (which he did not know when he started). At one point he is told he has to sacrifice one of the pieces for the rest to move on. After agonizing over this decision for a time, Quark cannot bring himself to do this and throws himself at his opponent's feet, begging for them all to survive.

!!The Nagus
* Sisko discovering that Jake is teaching Nog how to read in "The Nagus."

!!Battle Lines
!!The Storyteller
!!If Wishes Were Horses
* Buck giving Sisko his baseball at the end, which would become a permanent fixture on his desk.

!!The Forsaken
* Lwaxana [[ThePowerOfTrust holding Odo in the folds of her skirt]] as he regenerated.
!!Dramatis Personae
* What could have ended up being a rather {{Anvilicious}} anti-racism episode managed to be one of the most moving and beautiful episodes in ''Franchise/StarTrek'' history, complete with a TearJerker ending.
** It's also the point when Kira [[CharacterDevelopment begins to move away]] from her "[[FantasticRacism all Cardassians are evil]]" mindset.
-->'''[[spoiler:Aamin Marritza]]''': My trial will force Cardassia to acknowledge its guilt, and we're guilty, all of us! My death is necessary!\\
'''Kira''': What you're asking for is another murder. Enough good people have already died. I won't help kill another.
* There's a moment where Sisko sits down with Kira to tell her that Odo will be conducting the episode's investigation, since Kira is too close to the situation to be objective. Kira replies by giving her word that she'll conduct the investigation as it deserves, but also adds that a Bajoran ''needs'' to do this, for "the ones who moved too slowly and never moved again." By this point in the series, after some false starts, Kira had more than earned Sisko's respect, and right then and there he hits his com badge, and informs Odo that Kira is now in charge of the investigation. As if to show solidarity with Kira, Odo immediately replies "Understood." ''This'' is a definitive point where Kira and Sisko really start becoming good friends.

!!In The Hands Of The Prophets
* The first season finale "In The Hands Of The Prophets" involves Vedek Winn stirring up conflict between the Bajoran and Federation crews, and when Sisko reaches the end of his rope, he starts [[PatrickStewartSpeech speechifying.]]
--> '''Sisko:''' The Bajorans who have lived with us on the station, who have worked with us for months, who helped us move this station to protect the wormhole, who joined us to explore the Gamma Quadrant, who have begun to build the future of Bajor with us, these people know that we are neither the enemy nor the devil. We don't always agree. We have some damned good fights in fact, but we always come away from them with a little better understanding and appreciation of each other.

[[folder:Season 2]]
!!The Homecoming
!!The Circle
!!The Siege
* During "The Siege", while an extremist Bajoran military force is bearing down on Deep Space Nine, the Starfleet crew is trying to evacuate everyone as fast as they can, and his uncle Quark is gleefully plotting how best to screw the evacuees out of their money...Nog discovers that he and Jake are on different runabouts, going to different systems, and when Jake mourns having to lose his home again, along with his friend, Nog takes the time to unabashedly reassure Jake that [[IWillFindYou they will see each other again,]] because there's never been a greater friendship than theirs between Human and Ferengi. It's both heartwarming, and one of the first notes of foreshadowing that Nog is at his best when he's not trying to be a "proper" Ferengi. (Though it briefly turns [[FunnyMoments funny]] when Nog can't pronounce "coup d'état".)
** Just for a moment, in between long stretches of being a braying jackass, Quark shows a flash of genuine concern when he tells [[VitriolicBestBuds Odo]], "Take care of yourself."
!!Invasive Procedures
!!Rules of Acquisition
!!Necessary Evil
!!Second Sight
* For all of Quark's constant griping about his family and how they cause him nothing but trouble, in the episode "Sanctuary," he leaps immediately to Nog's defense when he is jumped by a handful of Skrreean teens.

* And while we're talking about Miles and Keiko, there's a sweet scene from the second season ep "Rivals", in which O'Brien is psyching himself up for a racquetball match against Dr Bashir, who had beaten him soundly earlier. Keiko stands beside him, assuming the attitude of a samurai's wife as her husband prepares for battle, while reminding him, "Remember, Miles. Win or lose, tonight we celebrate." Before he leaves, Keiko presents Miles with a Japanese silk scarf scented with her perfume. She wraps the scarf around his head, kisses him and says, "Kick his butt."
!!The Alternate
!!Armageddon Game
!!Playing God
!!Profit and Loss
!!Blood Oath
* It's just a small thing, but still. Watching Koloth ''[[DeadpanSnarker nursemaid]]'' Kor (despite his complaints that he would do no such thing) in "Blood Oath" was rather adorable in its own way. These are two battle hardened warriors who have watched each other's backs for almost a hundred years, so it kind of makes sense. Though it's also great on a meta level, since this is the first time the pair have ever been seen on screen together. The fans of the original series have been hoping for a team-up like this for years, and they finally got their wish.
!!The Maquis Parts 1 & 2
!!The Wire
* Garak and Bashir in [[http://www.youtube.com/watch?v=xjFL_bMco_Q "The Wire"]], when Garak asks Bashir to forgive him, which he does while holding his hand.

!!The Collaborator
!!The Jem'Hadar

[[folder:Season 3]]
!!The Search
!!House of Quark
* Kira saying that Odo's method of stirring (stationary spoon and moving the bowl under it) is "cute," along with her smile as she observes him.
!!Second Skin
* Kira is in no position to appreciate it, but just how [[PapaWolf devoted]] [[GoodParents Legate Ghemor]] is to his daughter's safety is one of these all on its own. He's nothing but kind, patient and supportive all through the episode, and even if we are initially led to believe he's just an Order plant playing a role, TheReveal makes it clear that this is entirely genuine. That he's [[spoiler: willing to take the risk of the political trouble that would ensue from Kira escaping under his watch, even if he doesn't think at first that he'll be suspected of his dissident activities]] only makes it better.
!!The Abandoned
* Sisko is so busy cooing over the infant Jem'hadar that he's not really listening to what Dax and Bashir are talking about. They smile at each other over seeing this new side to their commander.
* Odo putting Kira's gift plant into the pail he USED to sleep in.

!![[Recap/StarTrekDeepSpaceNineS03E07CivilDefense Civil Defense]]
* As part of the b-plot, Quark is trying to get a picture of Major Kira for a naughty holosuite program. As part of this scheme, he declares Kira Nerys the one-millionth customer to his bar, lavishing several prizes on her (drinks, dabo spins, and holosuite time). That's not the heartwarming part. While Kira turns down most of the prizes (giving the holosuite time to someone whose birthday it is since Kira doesn't use holosuites), she seems really happy at having won them. Bear in mind both that Kira despises Quark's scheming and lechery and that her childhood was a nightmare, so this is probably one of a very few things she's ever won, if anything. Even if she hates the source (especially later in the episode), she looks like she really appreciates the gesture.
!!Past Tense, parts 1 & 2
!!Life Support
!!Heart of Stone
* The end of Nog's story in "Heart of Stone". After Sisko finally [[TearJerker forces Nog to tell him why he wants to join Starfleet,]] Sisko realises how badly he's misjudged Nog and commits to helping him become a Starfleet officer. Nog is so delighted he ''hugs'' Sisko and promises he'll never regret it. [[http://www.youtube.com/watch?v=FcATQUFsz68 Watch it!]]
** And on the greater scale of things, Nog lives up to that promise, becoming a model Starfleet officer who makes Sisko ''proud.'' In a way, even though Sisko was happy enough to let Jake become a writer and journalist rather that following in Sisko's footsteps as he'd hoped, Nog fulfilled Sisko's dream in Jake's place. Just to give it some perfect closure, one of Sisko's last acts in the final episode is to promote Nog to lieutenant junior grade.
** Not to be missed is Rom's reaction to Nog wanting to join Starfleet. Quark forbids it and Rom, in a rare display of backbone, puts his foot down, tells Quark that he runs the bar, but Nog is HIS son, and wishes Nog good luck at Starfleet Academy.
*** In many ways, Nog taking this step is what gives Rom the courage and resolve to kickstart his own personal development - he begins to stand up to Quark to protect Nog, and in the following season, leaves the bar to join the station's engineering team. All because he saw his son attempt to follow his own path, rather than what was expected of a Ferengi.
*** A very interesting and decidedly meta moment of heartwarming- Over on Star Trek: Voyager, Harry Kim was an ensign for seven years. He was actually served a drink by Nog back on Deep Space Nine before ''Voyager'' left dock. In seven years, he never was promoted above ensign. Nog not only went to Starfleet Academy, graduated, but now is a Liutenant Junior Grade, in less than half that time. Now consider that the Ferengi were originally designed as a Straw Race--designed to look bad and show as a reflection of modern day humans, how our greed and misogyny and bad habits would eventually turn out, while the Federation was made of humans, who were perfect. Now, well over a decade later, and we see what happens to a race created as an anviliciously evil menace when they really apply themselves. Nice way to overcome the stereotype, Ferengi.
!!Prophet Motive
* At the end of "Prophet Motive", Quark says he was sad he couldn't profit somewhat from the Grand Nagus' charitable streak or the experience both had with the Prophets. Rom then reveals he embezzled funds from the Nagus' charity fund, leaving a tidy bit of money for Quark and himself. Imminently impressed, Quark says "Father would be proud" and they walk off together laughing. It's one of the few times Quark expresses genuine pride in his brother, and it's absolutely adorable.
!!Distant Voices
!!Through The Looking Glass
!!Improbable Cause
* At the start of the episode, Garak mentions to Bashir that he managed to get Delavian chocolates, and promises to bring some to the infirmary later. When Garak is about to set off to rescue Tain, Bashir gives him the chocolates, figuring that he'll need them more.
!!The Die Is Cast
* Garak's interactions with Tain's housekeeper, Mila. In "The Die Is Cast," Garak persuades Tain that she is trustworthy and loyal when Tain suggests killing her for knowing too much, and, while Garak, Damar, and Kira are hiding out in her basement on Cardassia, she essentially says she's proud of Garak, and he gives a rare sincere smile.
** It's implied (and the novel ''A Stitch In Time,'' written by Garak's actor, goes with this interpretation) that she is his mother.

* The whole of the episode "Explorers" explores the loving father-son bond between Commander Sisko and Jake. From Ben and Jake sharing an adventure together by [[ExperimentalArcheology building an ancient solar sail-barge]] and becoming the Federation's version of Thor Heyerdal by proving that ancient Bajorans used these vessels to travel all the way to Cardassian space, to his unconditional support of Jake's desire to pursue a writing career. Ben and Jake Sisko present one of the most positive father-son relationships since [[Series/TheAndyGriffithShow Sherrif Taylor and Opie]].
** The subplot in the episode with Bashir and O'Brien is also heartwarming. The valedictorian from Bashir's class in medical school visits the station, and doesn't appear to recognize Bashir. To lift his spirits, Bashir gets sloshed with O'Brien, and eventually they have this heart to heart:
---> '''O'Brien:''' You're not an in-between kind of guy. People either love you or hate you.
---> '''Bashir:''' Really?
---> '''O'Brien:''' I mean, I hated you when we first met.
---> '''Bashir:''' I remember.
---> '''O'Brien:''' And now...
---> '''Bashir:''' And now?
---> '''O'Brien:''' Well... Now, I don't.
---> '''Bashir:''' That means a lot to me, chief, it really does.
---> '''O'Brien:''' [[RealMenHateAffection And that is from the heart! I really do... not hate you anymore.]]
!!Family Business
!! The Adversary
* This line from the beginning of "The Adversary"...
-->'''Jake:''' "Dad, there's something I've been wanting to say to you for a long time and now that I finally have the chance, I'm going to make it short and simple. Congratulations...''[[RankUp Captain]]'' Sisko!"

[[folder:Season 4]]
!!The Way Of The Warrior
* The moment in "The Way of the Warrior" where Worf and O'Brien reminisce about the events surrounding "The Best of Both Worlds". It becomes a TearJerker when they start eulogizing the ''Enterprise''-D because, in a meta sense, they are also eulogizing [[Series/StarTrekTheNextGeneration the Next Generation]].
--> '''Worf:''' We were like warriors from the ancient sagas. There was nothing we could not do.
--> '''O'Brien:''' [[CrowningMomentOfFunny Except keep the holodecks working right.]]

!!The Visitor
* In "The Visitor", we see a flashback to Jake a few months after his father's death. He and Nog have made plans to spend some time together, but Nog tells him that with how slammed the bar is, it looks like he'll need to keep working. Quark takes a look at Jake and tells Nog to take off.
* "The Visitor" is made of this and TearJerker in equal portions. To wit: Ben Sisko becomes trapped in subspace due to a NegativeSpaceWedgie, to Jake's distress. Ben, however, keeps appearing in Jake's life at increasingly long intervals, leading Jake to abandon everything, from a happy marriage to his career as a writer, to study the physics of the accident and try to save his father. In the end, Jake realizes his father's subspace mishap is tied to him, and he puts into motion a plan to kill himself when his father appears one last time in the hopes that Ben would be sent back to shortly before the accident. Ben's heart is shattered at the lengths Jake took, just to get a second chance to live with his father.

!!Hippocratic Oath
* The fourth season episode "Indiscretion" also has [[PetTheDog one of these]] for [[BigBad Dukat]] and his half-Bajoran daughter Ziyal. While he originally wanted to kill her to save his career, the episode ends with father and daughter embracing each other in a big, big hug. Especially heartwarming considering he actually gave up his career and social status by letting her live and openly acknowledging her as his daughter.

* Jadzia and Lenara Kahn in "Rejoined." Lovers in past lives, Dax and Kahn have been dealing with unresolved issue and flirting with taboo and after they kiss (itself a CMOH and TearJerker). While on the Defiant, Kahn is in the Engineering Bay and Dax is on the bridge when a plasma conduit is ruptured in Engineering. Jadzia wastes no time getting down there, and if Eddington says that if they don't vent the plasma into space, the entire ship will go. Dax walks over the plasma leak by putting a force field on top of it, pulls Kahn into the next room. Their exchange as they're holding each other:
-->'''Kahn:''' I don't want to lose you...not again...
-->'''Dax:''' Not again. Never again. Never again. Never...

!!Starship Down
* "Starship Down." The Defiant gets hit ''hard'' by the Jem'Hadar, the aftermath of which leaves Sisko bleeding on the floor with a concussion, and Kira notes that if he passes out, he'll likely go into a coma. She stays with him, talking to him to keep him awake, and slowly opens up to him: she's overcome with regret over how they always talk about work, noting how intimidating it is working with the Emissary. At the end of the episode, Kira discusses schedules in Sisko's office, and turns to leave... but not before Sisko happily invites her to a Holodeck baseball game, even giving her one of his caps. [[WhenSheSmiles You will never see a smile bigger than Kira's in your life.]]

!!Little Green Men
* At the beginning, Rom and Nog are selling things off, as part of a Ferengi rite of passage. Rom quickly snaps up something that Nog offers to sell him for three strips of latinum. Rom offers two and Nog takes the offer. Both are clearly enthusiastic, showing that this is just a bonding opportunity for them, and Nog's perfectly happy to let his dad have a memento of his for cheap.

!!The Sword of Kahless
!![[Recap/StarTrekDeepSpaceNineS04E10OurManBashir Our Man Bashir]]
!!Paradise Lost
* In "Crossfire," Odo, upset over losing out on romance to Kira and Worf capturing a would-be assassin, comes to his quarters and smashes the place up. Quark comes to complain about the noise but is struck by how defeated Odo looks. Quark tells Odo he's losing money in a "manhunt pool" he runs because of this attitude and that the pool is a sign of how much the station's inhabitants respect and admire Odo. Quark tells Odo has to either tell Kira how he feels or forget her and move on.
-->'''Quark''': Well, I've said my piece. Sorry to come down hard but I'm looking out for my business.
-->'''Odo''': Funny...For a minute there, I thought you were talking to me as a friend.
** At the episode's end, Quark tells Odo he's moved by the discovery Odo is having the floor of his quarters sound-proofed. Odo scoffs and claims he's just having the floor reinforced, the sound-proofing is a coincidence and Quark pretends to accept it but clearly, they both know it's a cover.

!!Return To Grace
!!Sons Of Mogh
!!Bar Association
* Rom quits his job as a waiter at Quarks' and joins the station engineering team. He gives Quark a great justification for leaving, one that has nothing to do with years of being exploited:
-->'''Rom:''' Think about it, from my point of view: if I keep working for you, all I have to look forward to is waiting for you to die, so I can inherit the bar. (bashfully) Well, I don't want you to die.

** Then there was when Keiko and Molly returned from a year-long botanical survey on Bajor. Miles, used to spending his time with Julian (to compensate for Keiko and Molly being absent) doing things such as re-enacting the Battle of Britain, finds the transition surprisingly difficult and even goes so far to try to teach Molly how to play darts - something he always did with Julian. As much as it pains him, he is determined to spend time with his family and be a good husband and father. Keiko, understanding his pain, concocts a little story about how depressed Julian has been lately and perhaps Miles should go spend time with him to "cheer him up"... and then concocts the very same story to Julian about Miles over the comm. As Miles himself states: he's a lucky man.
!!Rules Of Engagement

!!Hard Time
* Miles is put through 20 years of simulated jail time, in which he killed his cellmate Ee'char when he suspected he was hoarding food from him ([[ShootTheShaggyDog it turned out he was saving the food for both of them]]). This experience leaves Miles traumatized, and when he loses his temper towards his daughter Molly, [[MyGodWhatHaveIDone Miles is so ashamed that he heads down to the phaser locker to kill himself]]. Thankfully, Dr. Bashir finds him before Miles presses the trigger button.
-->'''Miles:''' When we were growing up, they used to tell us humanity had evolved, that mankind had outgrown hate and rage. [[WhatYouAreInTheDark But when it came down to it, when I had the chance to show that no matter what anyone did to me, I was still an evolved human being, I failed]]. I repaid kindness with blood. I was no better than an animal.
-->'''Bashir:''' [[YouAreBetterThanYouThinkYouAre No, no, no, no. An animal would've killed Ee'char and never had a second thought, never shed a tear. But not you.]] You hate yourself. You hate yourself so much you think you deserve to die. The Argrathi did everything they could to strip you of your humanity. And in the end, for one brief moment, they succeeded. But you can't let that brief moment define your entire life. If you do, if you pull that trigger, then the Argrathi will have won. They will have destroyed a good man. You cannot let that happen, my friend.
** "Be well, Miles."

!!Shattered Mirror
!!The Muse
* Odo marries Lwaxana (granted, it's just to allow Lwaxana to keep a child she's carrying, but still, that he's willing to go so far to help her is heartwarming in and of itself). At one point he has to convince the father of the child of his love for her, and when hollow platitudes aren't enough, he opens himself up in a way he rarely does:
-->'''Odo:''' Before I met her, my world was... a much smaller place. I kept to myself, I didn't need anyone else, and I took pride in that. The truth is, I was ashamed of what I was, afraid that if people saw how truly different I was, they would recoil from me. Lwaxana saw how different I was... and she didn't recoil. She wanted to see more. For the first time in my life, someone wanted me as I was. And that changed me forever. The day I met her is the day I stopped being alone. And I want her to be part of my life from this day on.

!!For The Cause
* Sisko doesn't want Kassidy to leave in the morning, so he resigns himself to tossing his pillow and resting on hers instead, just to be able to smell her scent a bit longer.

!!To The Death
* Quark's brief appearance, showing genuine concern for Rom's safety. For all the guff he gives him, he is still his brother.
-->'''Quark''': Oh, what a relief... Wait 'til I find him, I'll kill him for scaring me like that!
!!The Quickening
* In "The Quickening" when Bashir seems to have utterly failed... but thanks to his antigen, a Teplan baby is born without the deadly blight, ensuring future generations will be safe.
** Highlighted by the reaction of the local doctor - the situation with the blight was so hopeless that he'd been reduced to being little more than [[MercyKill a euthanasia provider]] weeps as he holds the baby and thanks Bashir for giving his people hope.

!!Body Parts
* At the end of "Body Parts", Quark [[spoiler:sits in the empty space that used to be his bar, all his possessions and business assets having been confiscated]]. Rom comes in to console him, and after a little bit... cue practically every non-Ferengi on the station coming up with contrived, mock-cynical, Quark-esque excuses to [[spoiler:[[FriendshipMoment set up the bar exactly as it was]]]].
-->'''Rom''': Look at them, brother. And you thought you had no assets.
-->'''Quark''': Sisko, Dax, Bashir, Morn? They're my assets?
-->'''Rom''': To name a few.
** Personally, the scene that got me was Quark telling Sisko (who was essentially giving him free furniture to "Store" while someplace on the station was "Being fixed") that there was a small storage fee for keeping the stuff there. ("A minimum storage fee. Practically nothing.") I don't know why, but something about it just said that even after the emotional roller coaster that Quark went through, he's capable of getting back to who he is- a greedy, lovable scoundrel. And it's capped off by Sisko just cocking an eyebrow and rolling with it. ("Send me the bill.")
** The B-plot from the same episode, in which Kira allowed Bashir to transplant Keiko's unborn baby into her womb when Keiko is injured in a Runabout accident. The O'Briens welcome Kira into their extended family and invite her to stay with them for the duration of her pregnancy. Especially sweet when Molly calls her "Aunt Nerys".

!!Broken Link

[[folder:Season 5]]
!![[Recap/StarTrekDeepSpaceNineS05E01ApocalypseRising Apocalypse Rising]]
!!The Ship
* [[spoiler: Although he eventually dies, ]]O'Brien and Sisko not giving up on the injured redshirt, who they considered to be their friend, was sweet.
!![[Recap/StarTrekDeepSpaceNineS05E03LookingForParMachInAllTheWrongPlaces Looking For par'Mach In All The Wrong Places]]
* Worf helps Quark court Lady Grilka, showing him step by step how to declare his intentions, how to roleplay the most romantic moment in klingon history in the holosuite, and helping Quark fight a duel against Grilka's bodyguard. It's clear that Worf has put a lot of thought into courting Grilka, and wishes that Grilka would give him another chance, but he shares his knowledge with Quark knowing that Grilka would be more happy with him than with Worf. And [[spoiler: Dax takes notice and initiates a relationship with him because of it.]]
!![[Recap/StarTrekDeepSpaceNineS05E04NorTheBattleToTheStrong .. Nor the Battle To The Strong]]
* Sisko's SoProudOfYou moment with Jake, praising him for telling the whole truth about what happened on Ajilon Prime.
!!The Assignment
* The end of "The Assignment", after O'Brien saves his wife Keiko from a disembodied alien that had possessed her in order to blackmail O'Brien into sabotaging the station in an effort to destroy the wormhole. Lovely exchange between those two at the end;
-->'''Miles:''' You don't have to talk about it if you don't want to.
-->'''Keiko:''' It helps to talk about it. Besides, I never want to forget how you fought for me.
** Also from "The Assignment" there was the subplot about Rom joining the station engineering crew. After showing unwavering loyalty to O'Brien in his struggle to save Keiko, even keeping the faith when he was arrested for sabotage and O'Brien was forced to let him take the blame, he is rewarded at the end when O'Brien promotes him to the day shift in gratitude. It's quite genuinely endearing.

!!Trials And Tribbleations
!!Let He Who Is Without Sin...
!!Things Past
!!The Ascent
!!The Rapture
* Kasidy Yates's return to the station. She's been in jail for about a year for smuggling food and medical supplies to the Maquis, and Sisko was the one who had to arrest her. When she comes back? It's like she never left and they never bring it up again. It's not a lack of continuity, it's that to Sisko, this is the woman he loves, and he doesn't care - she's done her time, and they can continue with their lives together.

!!The Darkness And The Light
!!The Begotten
* The entire episode "The Begotten", where Odo plays Dad to a baby Changeling, especially the moment where it imitates his face. And bonus heartwarming in that the experience reconciles Odo with his own father figure in Doctor Mora Pol and [[spoiler:it gives him back his shapeshifting abilities as a parting gift]].

!!For The Uniform
!!In Purgatory's Shadow / By Inferno's Light
* Garak and [[spoiler:his father]] Enabran Tain in the Dominion prison camp in [[http://www.youtube.com/watch?v=gV9t9Db4nkE "In Purgatory's Shadow"]].
** Even more so, the fact that when Tain asked Garak if they were alone, Garak lied about the fact that Bashir was in the room, allowing him to stay and not only witness him reveal the biggest secret of his life but share in one of his most emotional and vulnerable moments. It's easy to miss this powerful unspoken statement of how much Garak trusts Bashir.
* The surprising bond between Worf and his Jem'hadar opponent. The First clearly sees Worf as not just a WorthyOpponent, but someone he finds clearly more relatable than the Vorta, at one point snapping that [[EvilCannotComprehendGood the Vorta will clearly never understand Worf's honour]].
-->''I yield. I cannot defeat this Klingon. [[{{Determinator}} All I can do kill him, and that no longer holds my interest.]]''

!!Doctor Bashir, I Presume
* The subplot where Rom is trying to tell Leeta that he loves her. It's obvious that Leeta reciprocates but he's too nervous to say anything, and Leeta is frustrated because he's not saying anything, so she decides to leave with Dr. Zimmerman. But right when they're about to depart...
-->'''Zimmerman:''' Do you hear that? \\
'''Leeta:''' What is that? \\
'''Zimmerman:''' It's getting closer.\\
'''Rom:''' Waaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaiiiiiiiiiiiiiiiiiiit! (catches his breath) Wait. \\
'''Zimmerman:''' We heard you the first time. \\
'''Rom:''' Leeta! [[PunctuatedForEmphasis Don't. Go.]] \\
'''Leeta:''' (frustrated) Why not? \\
'''Rom:''' Because! (quietly) I love you, and I want you to stay. \\
'''Leeta:''' I love you too, Rom!

!!A Simple Investigation
!!Business As Usual
* Quark telling Sisko that can live with the fact that [[spoiler: the Regent of Palomar is dead because Quark set him up with a meeting with his arch-enemy]], and that he can think of 28 million people who can live with that too -- [[spoiler: the people that the Regent was planning to kill]]. Sisko corrects him by saying, "Twenty-eight million and ''one''."
** When Sisko shows Quark the repair costs from [[spoiler: the firefight between the Palomarian Freedom Brigade and the Regent of Palomar]], He balks and asks Sisko if he can pay with an installment plan. Sisko's response? "Works for me!"
* Jadzia Dax rejected Quark's friendship because was selling weapons. When he finally redeems himself? The two of them are best friends again, laughing and playing Tongo with each other as if nothing ever happened.

!!Ties Of Blood And Water
* "Ties of Blood and Water" is a big mix of this and TearJerker. Kira returns Ghemor's side and remains with him until he dies. Then she buries him next to her father, under the same tree.

!!Ferengi Love Songs
* The romance between Quark's mother and [[spoiler: The Grand Nagus Zek]] may seem like a CrackPairing, but the affection they display towards each other sells it.

!!Soldiers Of The Empire
* The end of "Soldiers of the Empire", in which Martok invites Worf to join his house.

!!Children Of Time
* The ''Defiant'' crew helping the colonists in their harvest. In particular, Worf brings his descendants to help. Having spent their whole lives in a martial lifestyle, the Sons of Mogh ask Worf to help them find an honorable death.
-->'''Brota:''' You said there was an enemy for us to fight.
-->'''Worf:''' They are attempting to plant their fields before the sun sets. Time is their enemy. We should help them defeat it.
!!Blaze Of Glory
!!Empok Nor
!!In The Cards
* The episode "In the Cards" is one of the franchise's few truly successful comedy episodes, focusing on Jake's attempt to cheer up his father in the wake of the looming war by getting him a mint condition Willie Mays rookie card. This ultimately involves both him and Nog having to do favors for a bunch of other people: do jobs for O'Brien so he can go kayaking on the holodeck, retrieve Bashir's childhood teddy bear after his ex-girlfriend stole it, punch up an important speech for Kira, and fix distortions in Worf's collection of opera recordings. At the episode's end, we see the results of all this as Captain Sisko records a log entry that somehow people on the station seem happy again. Finally, he receives the hard-won card from his son and wraps him in a huge hug. Watch the ending with Sisko's log and the hug [[https://www.youtube.com/watch?v=XgldQAYEB3o here]].

!!Call To Arms
* In "A Call to Arms" Sisko's speech to the remaining people on the station promising to return before he beams over to the Defiant.
** From the same episode, just before the battle, Quark asks Rom why he hasn't evacuated with Leeta (his new wife), to which he says that he needs to look out for his brother. Quark responds by calling him an idiot--and kissing him on the head. They may argue a lot, but they're ''brothers''.


[[folder:Season 6]]
!!A Time To Stand
!!Rocks And Shoals
!!Sons And Daughters
!!Behind The Lines
* The scene with Dukat and Weyoun angrily insisting to each other that the Damar is not a liar and the Jem'Hadar aren't thieves after the bar fight in "Behind the Lines" can be somewhat touching. It may be mere posturing, but it's also very possible to interpret as them genuinely trying to defend the honor of their men.

!!Favor The Bold
* Sisko describing his love for Bajor and his desire to build a house there once the war is over.
* Quark's rare display of BigBrotherInstinct towards Rom when Rom is in prison and facing execution.
-->'''Quark:''' Besides, do you think your big brother would let anything happen to you?\\
'''Rom:''' What can you do?\\
'''Quark:''' I'm not sure, but I will think of something. No matter what it takes, no matter what I have to do, I'm going to get you out of here.

!!Sacrifice of Angels
* In ''Sacrifice Of Angels'', when [[TheCavalry the Klingons]] dive in out of the sun to assist a beleaguered Starfleet force against a large Dominion fleet, Worf hails the ''Defiant'' and [[BigDamnHeroes apologizes for being late]]. The camera cuts to Worf's LoveInterest, Jadzia Dax, on the ''Defiant's'' bridge with TearsOfJoy in her eyes.

!!You Are Cordially Invited
* The wedding of Worf and Jadzia, and the tale of the first two Klingon, who instead of fighting each other, joined together and slew their gods, showing that nothing is stronger than two hearts together.
** Special mention also goes to Martok talking some sense into Worf when he decides the wedding is off.
-->'''Martok:''' We are not accorded the luxury of choosing the women we fall in love with. Do you think Sirella is anything like the woman I thought that I'd marry? She is a prideful, arrogant, mercurial woman who shares my bed far too infrequently for my taste. And yet... I love her deeply. We Klingons often tout our prowess in battle, our desire for glory and honor above all else... but how hollow is the sound of victory without someone to share it with? Honor gives little comfort to a man alone in his home... and in his heart.
** In the marriage ceremony, Sirella, who had been unusually hard on Jadzia the entire episode, is the one who tells the tale of the two Klingon hearts. She ends it with a statement that nothing can withstand the beating of two Klingon hearts together..."not even I".
** And when the ceremony's complete Sirella ''smiles and hugs'' Jadzia.

!!Statistical Improbabilities
!!The Magnificent Ferengi
* This exchange:
-->'''Rom:''' So, Brother, how does it feel to be a [[BigDamnHeroes hero?]] \\
'''Quark:''' You tell me. \\
'''Rom:''' It feels... [[GoodFeelsGood good?]] \\
'''Quark:''' (laughing) You ''bet it does.''
!!Who Mourns For Morn?
!!Far Beyond The Stars
!!One Little Ship
!!Honor Among Thieves
!![[Recap/StarTrekDeepSpaceNineS06E16ChangeOfHeart Change Of Heart]]
* That one episode where Worf sacrifices the mission and the Cardassian defector with valuable information to go back and get Jadzia back to proper medical facilities instead of letting her die.
** Also, after he had just reprimanded Worf for the failure of the mission, Sisko says this...
-->"One last thing...as a man who had a wife, if Jennifer (his first wife) had been in that clearing...I wouldn't have left her either."

!!Wrongs Darker Than Death Or Night
!!In The Pale Moonlight
!!His Way
* When Odo and Kira finally hook up. It's almost like a [[CrowningMomentofFunny CMOF]] meets [[CrowningMomentofAwesome CMOA]] meets [[CrowningMomentofHeartwarming CMOH]]. Watch it [[http://www.youtube.com/watch?v=tjwj4nL7Qg8 here]]
** The best part is definitely Quark's look of approval. You can just sense him thinking "Good for you, Odo. You deserve it."

!!The Reckoning
!!Profit And Lace
!!Time's Orphan
!!The Sound Of Her Voice
!!Tears Of The Prophets

[[folder:Season 7]]
!!Image In The Sand
* In the season 7 two parter, Bashir, Miles and Quark join Worf's quest so that Jadzia's spirit can enter Sto-vo-kor - showing that Worf's not the only one who deeply valued Jadzia and is willing to risk their life to give her a worthy sendoff.

!!Shadows And Symbols
* Dax meeting the Siskos in "Shadows and Symbols." Ezri is dealing with being an unprepared host for the symbiote and all the [[MindHive issues]] that go with the joining, Ben is trying to come to terms with Jadzia's death, his failure as the Emissary, and some EldritchAbomination-provided hallucinations. But at the end of the day, they're still Sisko and Dax, and just being together again clearly helps both of them cope.

!!Take Me Out To The Holosuite
* While it may sound surprising, the episode "Take Me Out to the Holosuite" is probably one of the series biggest CMOH's. Watching Deep Space 9's senior staff pulling together all throughout the episode was very pleasant to watch. From everyone standing by Rom's side when Sisko kicked him off the team. Watching ''[[SourSupporter Quark]]'' of all people putting his heart and soul into the training, ''and'' the team. But the best part would have to be when Sisko gets Rom back in the game [[spoiler: and Rom manages to score]].
** And both the "manufactured triumph!" bit and the team giving Sisko a baseball signed by all of them. Aww.
* At the end of the Season 7 episode "Take Me Out To The Holosuite", Sisko's [[StrawVulcan Vulcan]] [[TheRival Rival]] tries to rub in just how badly [=DS9=] [[CurbStompBattle lost]] at baseball, even if they did manage to score a run. Sisko takes it in stride, enjoying the camaraderie and remembering how much he loved the game, then Sisko's team stand up for him, getting under the Vulcan's skin so bad it leaves him at a loss for words, showing how great the TrueCompanions and FireForgedFriends tropes are. To "manufactured triumph," indeed.
** Topping everything off with giving Sisko a new baseball ''signed by every player on his roster.''
** Earlier in the episode Kira is passing by Odo's office door and overhears him practicing his umpire moves and phrases. She smiles in the best way. It's clearly not a "what a bozo" smile, it's a "I'm glad he's enjoying himself" smile. See it [[https://www.youtube.com/watch?v=U9mxkNuOpCo&list=PL66277669B03474B1&index=61 here]].
** And note that during the celebration of the "Manufactured Triumph" the Vulcan crew is drinking along with the [=DS9=] crew. Even his own crew does not appear to agree with Solok and is willing to fraternise with the [=DS9=] crew.

* In "Chrysalis" Sarina can't quite speak naturally yet, so her friends the other genetically-enhanced patients [[https://www.youtube.com/watch?v=rRmWSrAzmIc sing with her]]. They're all having a great time, and Julian stands to the side smiling.

!!Treachery, Faith And The Great River
!!Once More Unto The Breach
!!The Siege Of AR-558
!!It's Only A Paper Moon
!!Prodigal Daughter
!!The Emperor's New Cloak
!!Field Of Fire
!!Badda-Bing, Badda-Bang
!!Inter Arma Enim Silem Leges
!!Till Death Do Us Part
!!Strange Bedfellows
!!The Changing Face Of Evil
!!When It Rains...
!!Tacking Into The Wind
* Virtually any moment with Odo and Kira after they get together is a heartwarmer, but if you want to know what real love means, watch this exchange from "Tacking into the Wind":
-->'''Garak''': I am afraid he's been hiding the true extent of his illness from you for some time now.
-->'''Kira''': I know.
-->'''Garak''': You do?
-->'''Kira''': I love him, Garak—did you really think I wouldn't notice?
-->'''Garak''': Then why the pretense?
-->'''Kira''': Because I also know he doesn't want me to find out about it. If he wants to put up a brave front and protect me from the truth, then fine. If that gives him one last shred of dignity to hold onto, then I'll go on ignoring what's happening to him until the very end.
** Before all that, Garak notices the difficulty that Odo is having maintaining forms and is genuinely worried about him. When Odo cuts him off with a brusque, "If I don't want pity from the woman I love, what makes you think I want it from you?" Garak simply nods and walks away, leaving Odo with his dignity.
** Any part of this story arc ("When It Rains", "Tacking Into the Wind", and "Extreme Measures) is chock-full of these, mostly due to the awesomeness that Kira and Odo bring to any scene. Special mentions go to the beginning scene of "Tacking Into the Wind" with Odo and Garak, the above-quoted scene, the end of this episode where Kira is so focused on Odo when he collapses that she seems to barely notice that she is being held at gunpoint, and the opening scene of "Extreme Measures".
* During "Tacking Into The Wind", Worf tells Ezri that he and Martok had a talk, and they decided that they both considered her to still be a member of the House of Martok. He also values her opinion enough to ask her about the Gowron situation.

!!Extreme Measures
!!The Dogs Of War
* From "Dogs of War":
--> '''Quark''' Rom, I want to buy back the bar.
-->'''Rom:''' That's all right, brother, I'll give it to you.
--> '''Quark:''' I suppose you're going to let me keep the five thousand bars of latinum too.
--> '''Rom:''' You're my brother.
--> '''Quark:''' And you're an idiot.
--> *Rom looks sad*
--> '''Quark''' But I love you.
--> [[CrowningMomentOfHeartwarming *Rom smiles*]]
** Pretty much any time Quark shows affection for Rom counts. He may be a JerkAss, but family's family.
*** "Never let family stand in the way of opportunity." Rule of Acquisition #6
*** Quark risks his life to free his brother from the Dominion and has a key role in the success of the entire war mostly as a side effect of freeing his brother. He was willing to bribe the Dominion everything he had, he even got Zek to offer an official bribe as the Grand Nagus.

!!What You Leave Behind
* The Founder is adamant over a BolivianArmyEnding to force Cardassia and the Federation a severe PyrrhicVictory - until Odo melds with her. Note the expression on her face after it's done, as if a quadrillion tons are taken off her, and her joy that Odo will return to the Link. She stated earlier that that was her number one goal, and everything... ''everything'' was subsidiary. She wasn't exaggerating, even to the point of accepting a possible capital punishment. (Fridge Heartwarming is that she - and the Link - will know of his love for Kira.)
* Quark and Odo's final parting.
-->'''Quark:''' A-ha, I knew it! When I saw the two of you slip out, I said to myself, that no-good, misanthropic, cantankerous changeling is trying to sneak off the station without anyone noticing.
-->'''Odo:''' That was the idea.
-->'''Quark:''' Well, it's not gonna happen, is it?
-->'''Odo:''' Apparently not.
-->'''Quark:''' So - now that I'm here... is there something you want to say to me?
-->'''Odo:''' Such as?
-->'''Quark:''' Such as... "Goodbye. [[WorthyOpponent You certainly were a worthy adversary.]]" Or maybe something with the words "mutual respect" in it.
-->'''Odo:''' [[DefiedTrope No.]]
-->'''Quark:''' No? What do you mean, no?
-->'''Odo:''' I mean, no. I have nothing I want to say to you.
-->'''Quark:''' You telling me that after all these years, after all we've been through, you're not even gonna say goodbye to me?
-->'''Odo:''' That's right. Nerys, I'll be on the runabout.
-->''(Odo glares at Quark and gives a haughty, "HMPH.")''
-->'''Kira:''' Don't take it hard, Quark.
-->'''Quark:''' Hard? What're you talking about? That man loves me! Couldn't you see? It was written all over his back. ''(He lifts his drink to toast Odo.)''[[note]]At the Great Link, Odo admits that yes, he does miss Quark.[[/note]]
* On the Founders' homeworld, also serving as a TearJerker, Kira and Odo say their final farewells and share one last kiss. Before making his way to save his kind, Odo shifts into a sharp suit.
-->'''Odo''': You always said I looked good in a tuxedo.
* Captain Sisko left one last gift for Nog before he left to join the Prophets; a promotion to lieutenant!
* Finally:
-->'''Quark:''' It's like I said: the more things change, the more they stay the same.


* Can we count the fact that Chief O'Brien goes through a yearly tradition of how he must suffer for an episode, but not once was Keiko divorcing him a plot? The O'Brien marriage goes through ups and downs, but they actually manage to spend the entire series HappilyMarried.
** Similar to below, [[DaddysGirl the father-daughter bond between Miles and Molly O'Brien]].
* And on the subject of relationships, there's also the consistently strong father-son bond between Ben and Jake Sisko, to the point that the writers had to scrap an episode concept because it would've involved creating a rift between them, and that simply could not be done.