Episode 29: Natsu, Gray, Happy, and Erza are in Lucy's apartment (she isn't home at the moment) and start searching the place. Cue Natsu searching where Lucy keeps her underwear. The others are about to call pervert until they see (we don't unfortunately) a pair of Lucy's underwear that just utterly shocks all of them.
Erza:(slightly blushing) "I never knew Lucy owned such a pair of underwear."
Gray: "You call that underwear!?"
Happy: "When would you wear THIS?"
Natsu:(with extra enthusiasm) "When you're eating food?"
Erza, Gray, and Happy:(shaking their heads furiously) "Definitely not."
And at her reaction whenever lingerie is involved.
Erza tries to pull people into Marshmallow Hell... while wearing her breastplate. Ouch.
One moment in the anime when she's right in the middle of delivering a lecture, falls into a pit... then gets out and continues as if nothing had happened.
Natsu's reaction to it in the dub:
Natsu: "She screamed like a girl!"
Occurred in the manga to, what really made the scene was her going 'kya!', a very un-Erza like reaction.
Happens again in the second OVA.
Any time when she shows that she's just as wacky as the rest of the guild. When the StoicBadass randomly breaks into Lucy's home or goes along with one of the bizarre notions Natsu comes up with, it's downright hilarious.
And every time she does something odd, Happy just says "That's Erza for you."
Do NOT interrupt Erza's first Picnic. She will destroy you.
The audio commentary for the dub reveals that Ian Sinclair voices Bora. Director Tyler Walker instructed him to make it sound like "a bad 'Evil J. Michael Tatum' impression" and wonders if that will bite in him the butt sometime later. He winds up sounding like a mix of dub!James of Team Rocket and said actor!
After Natsu and Lucy meet Edolas!Lucy, Natsu suggests they do a mirror-mimicry skit, to Lucy's protests. The funny part comes a few chapters later when they meet Edolas!Natsu, and Lucy indulges in a rare moment of snark to suggest that he does the same thing.
Lucy Tempting Fate in the Edolas arc. The King couldn't possibly have an amusement park in his castle, could he? Man Child Natsu was quite pleased.
During the fight between Hughes and Natsu in the anime. Hughes is evil-laughing uncontrollably the whole time while Lucy struggles to free a nauseous Natsu from the roller coaster, and in the end when it crash lands into the lake, it turns out that Hughes was laughing the whole time over the hilarious "Best Shot" of a terrified Lucy and motion-sick Natsu.
Juvia taking a comment from Gray the wrong way and assuming Lucy is her rival in love. One particular moment occurs after Juvia had to hide Gray inside her body (literally). Juvia gloats to Lucy:
It took this troper three rereads of the series to notice it, but during Natsu's and Gajeel's climatic battle during the Phantom Lord arc, while the Dragon Slayers are destroying the place and tossing everyone else around, one of the Phantom mooks took time to appreciate Lucy's panties.
Chapter 200: Lucy thinks that Natsu looks cute when he's sleeping, and as she's looking at him and smiling, but he suddenly hits her right in the face with Fire Dragon's Iron Fist. She goes through the roof of the guild and lands in the river outside. Again, while he's sleeping.
Chapter 204: Lucy and Cana defeat Fried and Bixlow... with the power of Fanservice! The fact that Fried faked it doesn't make it any less funnier.
Erza and Happy swapping is particularly hilarious; it's hard to beat Happy being stoic and serious, while Erza turns into a total Genki Girl with Happy in charge of her body.
Also, Gray maintaining his stripping habit while in Lucy's body, prompting Lucy to freak out and stop him.
Gray talking and acting extremely feminine, since it's Lucy in his body.
The ending, where Levy trying to fix things lets everyone else swapped around. The characters also Break The Fourth Wall when the episode ends with none of this resolved.
The best part? THE VOICE ACTORS STAYED WITH THE BODIES!! Gray's voice with Lucy's lines?! PRICELESS!!
The dub commentary adds to it when Tia realizes just how good Colleen's range is.
Episode 50 where Juvia's attempt to use a Love Potion on Gray instead gives a giant Conflict Ball to every member of the guild, prompting random declarations of rivalry. Some of them, like Macao and Wakaba or Mirajane deciding to start back up her rivalry with Erza, kind of make sense. Then you have Erza deciding that a pillar she has to walk around is her rival, while Makarov declares alcohol his rival, or Gray deciding at the end of the episode that the horizon is his rival and when it wears off he ends up at Galuna Island.
There's also Gray declaring Happy his equal because he can fly and Gray can't. He then goes to the top of the guild and tries to fly.
The same episode also has Lucy thinking Natsu was going to confess his feelings for her and her freaking out as a result. Turns out he just needed her to summon Virgo to dig out something. Her meltdown was pretty epic. Also, in her Imagine Spot, he basically used his trademark attacks and phrases to confess:
Natsu:(beautified) "Karyuu no Tekken... Let's have 30 babies, Lucy."
Natsu: "I'm all fired up."
Lucy:(back in the real world) "Like I said, that's not it... and why are the babies Happy?"
In an omake (Chapter 119.5), Mirajane teaches transformation magic to Natsu, Lucy, and Happy. Natsu turns into Lucy but doesn't change clothes, so all that's covering "his" upper body are a vest and scarf. Cue Lucy's freakout:
Lucy: "WAIT, LOOK AT YOUR CLOTHES!!! THE FRONT!!! COVER UP THE FRONT!!!"
Natsu:(looking down) "Wh... whoa, these are sof-" (Natsu proceeds to play with them)
Lucy: "NO TOUCHING!!!"
This gets even better once Happy transforms into Lucy with... interesting results. Mirajane then transforms into Lucy... for some fanservice!
In Episode 52, when after a long, extravagant introduction of the suave Pegasus Trimens, including a sing song, spotlighted introduction, a commercial break, several posed, flowery introductions, and Hibiki's Weekly Sorcerer fame, the camera cuts to an unglamorous shot of a moaning, nauseous Natsu and a naked Gray exclaiming that he forgot his clothes. Lucy sweatdrops and says "Not a chance."
Episode 53: When Happy sees Carla he asks Lucy to gives her a fish and Lucy uses this chance as payback for the all the times he tries to ship her.
Lucy: "You lllllllllike her!"
Happy: "You're mimicking me! And you're rolling your tongue 3 times more."
This is even better in the anime as she makes him do some pinup model poses. And then the first thing he does when he gets his doll back later... is to make her do the exact same poses in revenge.
Chapter 227: Natsu and Lucy's tag team. So Lucy's been voodoo'd and Natsu grabs the doll and plays puppet master with her when he's stuck under a pile of rocks. Their banter and the victory pose at the end are HILARIOUS!
To reiterate: Natsu is using the doll to punch and kick Kain Hikaru. Then Natsu gets the great idea to put Lucy on fire—but the fire won't hurt her—and then Happy is given the doll. Now Happy is going to give her speed by throwing her into the air, and then Lucy is covered in fire and delivers a kick while Natsu and Happy call the attack Lucy Fire. What makes it hilarious is how Lucy is reacting to the whole situation. Natsu's face was hilarious as well.
In Episode 72, Juvia confesses to Gray only for him not to be there.
When it's not being fanservicey, much of the first Fairy Tail OVA is this.
The scene where Natsu, Gray, and Gajeel saw Master Makarov swimming naked in the pool literally made this troper fall off her chair laughing.
Episode 81: Gajeel meets Edolas!Gajeel. All of their interactions are hilarious.
The second OVA is also hilarious, especially considering the Continuity Cavalcade of gags squeezed into 25 minutes.
Erza, Wendy, and Lucy are walking down the street and Mystogan passes by. Mystogan goes around with his usual tattered cape over a school uniform with a pair of spraying devices in his hands, reciting Naruto's creed about getting the people of the world to truly understand one another and then randomly yelling out: "ANIMA!" It's so random it's funny.
Both fights against Courage Academy (Phantom Lord). Especially the second one.
Gray: "Move aside or you'll get hurt."
Juvia: "If it's by you, I don't mind. That's because Juvia...likes" (gets sprayed by Gray's ice shaving machine).
In the second fight, Erza's dress gets ruined and she goes BALLISTIC against Courage Academy:
Aria: "So sad! She's totally open to attack just like that one time... I'm not sure why, but it's so sad!"
Erza:(beats him up) "I'm the one who's supposed to be feeling sad!!"
Natsu & Gray:(in unison) "She's really scary!!"
Gray: "What should we do? No one can stop her now that she's become like that!"
Natsu: "A battle of the giant monsters!? Is it the end of the world!?"
Later Natsu and Wendy not noticing that Gray came to rescue them and he gets a temporary Heroic BSOD.
In Episode 87, Lucy throws Natsu into the changing box and proceeds to change his clothes like he did hers.
Chapter 199: It's brief, but Lisanna'sNot What It Looks Like reaction when she's being expelled from Edolas along with all the other characters with inherent magic since she's from originally Earthland is snicker worthy. Mood Whiplash turns it into a Tear Jerker a few panels later.
Hades going nuts, full stop. From shouting "bang bang!" while using his fingers as guns to flailing everyone around so they would "dance with his magic", he managed to ham a moment of high tension into a hilarious scene.
He used to be a Fairy Tail mage. Of course he's wacky.
Chapter 246: Why's the cat trio crawling in the pipes? Because Happy suggested it, FOR NO REASON!
In the anime, after Pantherlily accidentally bumps into Carla's butt. Happy gets mad and challenges him to a duel.
Chapter 247: Patherlily performs a Barehanded Blade Block on a mook and takes his sword. When he realizes it's a Morph Weapon that can get huge, the expression of glee on his face makes it very evident that yes, he is Gajeel's cat.
Chapter 249: Juvia, upset over letting Zeref get away, asks Gray to punish her. While on all fours and waving her ass in his direction.
Gray: "I... I don't have those kinds of hobbies!"
Juvia: "BUT I DOOOOO!"
In Episode 95 of the anime, Erza freaks out after seeing Nichiya and punches him, saying he reminded her of a certain "someone".
In Chapter 267, Elfman thinking how the hell he was going to wear Wendy's clothes.
Mavis joining the cheer section of Fairy Tail.
Eve thinking that Elfman is Grown Up!Wendy.
Elfman: "Are you an idiot?"
In Chapter 268, Everyone's reaction to Fairy Tail's Team B.
Earthland Jellal disguising himself as Mystogan.
Mavis approving of this plan.
In Chapter 269, Mavis while explaining the Grand Magic Games skips over the other teams calling them not important.
Juvia glomping a Gray clone in the hidden part of the Grand Magic Games and it's mistaken as an attack causing her to lose a point. Gajeel and Laxus's expressions were priceless.
Natsu getting sick after looking at all of the Hidden clones.
In Chapter 270, Juvia's Dynamic Entry on Lyonnote Right before she lands on him. He comments on how he can see her panties.
Makarov saying that which Fairy Tail team loses has to do whatever the other Fairy Tail team orders them to and the Imagine Spots that followed.
Chapter 272: Gemini copied Lucy right after she took a bath. So Gemini Lucy shows up in a bath towel.
Chapter 273: Natsu informs Erza and Elfman that Lucy is taking a shower and he asks if they want to check on her. Elfman refuses, Natsu then innocently asks why, beat he then tries to run only for Erza to catch him.
Episode 118: Pantherlily breaking a doorknob after panicking from all the thunder. He hides it behind his pants.
Kain Hikaru thinking that Lisanna, Cana, and Levy have feelings for him. His Harem delusions end predictably.
Kawazu makes a wall out of eggs to parry Bixlow's attack, which fries the wall. Prompting Elfman to devour the whole thing.
Episode 119: After Happy finds the power source of the Grimoire Heart ship:
Happy: "You just bumped into Carla's butt with a "pomp"... Lily, isn't that so?!!" (cue Dramatic Thunder)
Pantherlily: "Are you actually complaining about that?! Is this really the time?"
Happy: "It's very important to me! When we get back, we're having a duel!" (cue Dramatic Thunder again)
Laxus silently giving his approval towards Elfman and Evergreen's "relationship". Much to Elfman's dismay.
Capricorn telling Lucy that she should go on a diet because she was too heavy.
Third OVA: Present!Natsu, disguised beyond recognition and beaten to a pulp in his fight with Present!Gray, turns out to be the maniac who "gave him his scar"note Past!Natsu actually scratched himself while fending off Present!Natsu.
Present!Natsu: "How can you call yourself a monster?!"
Past!Natsu: "I don't know what you're talking about!"
Chapter 274: Pretty much the entire chapter is funny. People mention how awesome Jura is and Mavis is not amused. Turns out she has to go to the bathroom much to everyone's shock.
Natsu's and Elfman's reactions to the effects of "Sema" spell used by Jellal.
Ultear using Meredy's magic in order to stop Jellal (Who was going to fully use the aftermentioned "Sema" spell) from exposing himself. Also, everyone's reaction when he loses and Mavis is not amused. Then there's Jellal's walk of shame.
Jellal: "I have no words to respond with."
Chapter 275: Mavis is still upset over Jellal's loss in the last chapter.
Fried's reaction to Gajeel patting Laxus on the head:
Fried: "What are you doing to Laxus!!! Our pride is being trampled on! Raijinshuu... ASSSEMBLE!!!"
Cue to Ever and Bixlow out cold after Cana beat them in a drinking contest.
Episode 122: Bixlow and Fried see something that weirds them out and asks Gray what he's sitting on. He didn't notice that Juvia was acting as his chair.
The reveal that most (if not all) Dragon Slayers are just as bad with transportation as Natsu is. While it's definitively proven with Sting and Gajeel, Rogue notices that it's not just him and Sting that suffer from it, and Laxus?
Toby's secret? He's been looking for his missing sock for three months. The same "missing" sock he's been wearing on as a necklace the entire time.
Also Kurohebi's reaction to it... before his jerkass moment.
Episode 124: Alzack shows Lily, Gajeel, and Wendy a picture of his daughter. Lily comments that she is small and cute like Wendy, who's still sad at the fact that Reedus believes that she won't gain any assets. Gajeel is too late to warn Lily. Cue Wendy running in tears. Much to Lily's bewilderment, and Gajeel is facepalming in the background.
Episode 134: Sugarboy falls for Gray. Also Juvia having to deal with unwanted affections.
Lucy's team trashing the place they were exploring. Plus, Virgo showing up in a bikini.
Erza getting angry at the bandits and their "horsesnote actually guys dressed like Sagittarius" for ruining her first picnic.
Episode 135: Dan accidentally shrinks Lucy. And wants to keep her tiny.
Episode 136: The Jiggle Butt Gang returns and it's horrific for Carla. Actually it's Wendy in the unitard that gives her that reaction.
In the same episode, Michelle, Romeo, and Happy use Lucy and her sex appeal as a decoy to distract Dan...and it works. Natsu manages to knock him out and Happy is bawling over the fact that this is the first time Lucy's seduction tactic has actually worked.
Episode 138: Wendy, Erza, Carla, and Cana (the latter two who are irritated at it) are all wearing stolen Jiggle Butt spandex.
Chapter 290: Natsu, Gray, and Erza all go barrel surfing inside the tavern.
Chapter 293: Usagi is actually Nichiya, and he teams up with Ichiya to battle Bacchus and Rocker. Actually, the whole battle is a living moment of funny.
The fact that these two met is hilarious. Erza's reaction tells us all:
Erza:(fainting) "Ichiya became two people..."
Before Usagi's revelation, Ren comments on who could it be under the mask. While Hibiki and Jenny are making out, much to his shock.
Chapter 295: Natsu and Gajeel are bickering over Sting's exact pose when he's about to attack. And then, Natsu pushes Gajeel in a mine cart and pushes him away, leaving him suffering, as he takes on Sting and Rogue at the same time.
If you look closely, you'll notice that the fire Natsu is holding is actually spelling out "COME ON" between his fingers. He's essentially taking the time to give them the finger. On live television.
Chapter 298: This season's Pool Episode is full of silly and wacky hijinks, including a surprising Thanks for the Mammary incident between Jellal and Erza, and Erza doesn't even give Jellal the normally expected Megaton Punch for it, and even to the end, when Natsu uses one of his fire spells to counter an ice spell unleashed by Gray and Lyon that starts to freeze the pool. The end result is total destruction of the whole theme park, and Fairy Tail as usual ends up footing the repair bill.
This page is pretty much the funniest scene in this chapter. Also, compare this picture and the first one. See something similar? I'll give you hint: Broom.
And then there's Erza sitting on Jellal's face and the appropriate expression on her face.
Chapter 299: The sidestory features Gildarts traveling around and rescuing a village only to end up accidentally destroying it by tripping over a rock. For a chapter with no dialogue, it's hilarious with all the expressions that Gildarts makes.
Chapter 301: When Wendy uses the spell Milky Way to summon the spirit of a dragon, the dragon... trolls them. Team Natsu's reactionis priceless.
We also get this little exchange between the dragon and Natsu:
Zirconis: "I don't like humans. Though I don't mind having them for a meal."
Natsu:(grinning) "So...you're conversing with your food?"
Zirconis: "YOU REALLY PISS ME OFF!!"
Chapter 304: As Natsu’s team is rushing off towards the castle to rescue Lucy, Happy suggests that everyone wear disguises so they won’t be seen. Mirajane, Wendy, and Natsu dress up in very "unique" costumes.
Chapter 306: The smirk that Gray has on his face after he defeated Rufus and stole his hat is quite amusing.
Chapter 309: The leader of the Hungry Wolves tells Natsu he will repent his for his sins by dying, with Natsu responding he never did anything bad. Cue to a Gilligan Cut with Makarov having a face full of dread because he suddenly remembered all of the apology letters he had to send to due Natsu's antics. It's made even funnier when Alzack and Bisca's daughter asks about what he's talking about.
Chapter 322: While this chapter is dominated by Fairy Tail's awesome victory, a few laughs are sneaked in, mainly with Gray and Juvia. First they beat their opponents easily because Chelia is too distracted by their teamup, which looks romantic to her, and when she and her teammate Lyon are sent flying, the latter is in total disbelief of Chelia's ditziness. Right after, Juvia is happily holding Gray's hand, and when the latter says she can let go, she flat out refuses, much to his chagrin.
Gray:"Feel free to let go of my hand any time now..."
Juvia:"I'm never letting go..."
Gray:"THAT IS NOT FUNNY!"
Chapter 325: We finally find out the identity of the mascot of the Grand Magic Games: The King of Fiore. The reactions are just hilarious.
Chapter 330: Zirconis' first move is to magically strip the entire army. The reactions are priceless. Minister Darton scolds the nude soliders, only to reveal that he too was stripped. Then he targets poor Lucy, who is already cringing, knowing that she always ends up suffering Clothing Damage.
Ichiya's armpit perfume. It's even funnier when it backfires on him and guild because while it affects them, the dragon lacks a nose to begin with.
Gray's genuine surprise every time he's told that he's not wearing clothes. Behold.
The following exchange makes this scene even funnier:
Happy:(grinning) "Youngsters nowadays are so bold~"
Natsu: "Lucy's turned into some mega pervert."
Lucy: "AS IF!!!"
Then Virgo trolls Lucy about their "naked embrace".
Before that, in the middle of an intense fight with Future!Rogue, a flying naked Lucy collides with Natsu sending him flying; leaving Future!Rogue with a "what the hell just happened?" look on his face.
Natsu: "So... the legends of the naked flying people were true..."
Chapter 334: Though it's combined with Mood Whiplash, Sting comes to help Rogue fight his dragon. When the latter asks if he beat one already, he say's he brought it with him. The second dragon bursts onto the scene and argues with the first.
Chapter 338: The King decides to host a formal party for the mage guilds in celebration for dealing with the dragons and destroying the gate. Several things stick out:
Kagura getting drunk.
Millianna being cheered up when Erza gives her the guild cats one at a time to hug (She appears to pull Happy right out of her cleavage). Carla is not amused. Then she borderline strangled them due to Cuteness Overload.
Chapter 343: Upon finding out that the inhabitants of Sun Village are giants, Natsu starts freaking out screaming "HUGE!" at the various frozen giants, then there's a close up of Lucy's breasts, which he calls "HUGE!" Wendy pops up, "small." "HUGE!"
Chapter 344: There is something amusing about the fact that one of the treasure hunters is named Drake.
Chapter 345.5: Makarov brings up the bet between the two teams that participated in the Grand Magic Games (whichever team did worse would suffer under the better team), and since the bet was dropped when the A and B Teams merged into one team, he decides to settle it with Rock-Paper-Scissors. The look on Erza's face when she ends up with scissors to Laxus's rock is priceless. The B Team members proceed to do as they please with the A Team. Laxus turns Natsu and Elfman into his servants; Juvia spoonfeeds Gray (and when he starts choking, offers water produced from her body, much to Gray's disgust); Mirajane forces Erza into a maid outfit, and when she doesn't mind it, throws in some S&M; Gajeel forces Lucy and Levy (despite her not competing in the Games) into skimpy suits as he sings. When Levy runs off in tears at the sight of Lucy's cleavage, Gajeel loses interest in singing and passes Lucy off to Mirajane. Happy and Carla (considered part of the A Team because they're Natsu and Wendy's cats) had to fly carrying Lily in his full-size form. Finally, Cana forces Wendy into several outfits, only saying that she'll be presented to a man who will be interested in her, leaving the description so vague Wendy feared she'd be meeting a Lolicon. The man is a priest at a church with orphans Wendy's age who admire her for her participation in the games. Cana had lived at the church before joining Fairy Tail and simply wanted to set up Wendy for a playdate; the dress montage was out of concern that the priest would require formal clothing. After this sweet moment, Cana casually informs Wendy that at her age, she still had bigger breasts. Once the day ends, the A Team members get ready to take revenge on the B Team for their humiliation.
Chapter 349: Gray, despite being regressed into a child with less magic power, is still able to toy with Doriate, pissing off the later enough to disrupt the Law of Regression. This leads to some Mood Whiplash when Erza regains her normal body just in time to stop Minerva from killing her, and finds that the dress she was wearing as a child only extends to her waist, leaving her lower body completely bare. When Minerva mocks her for her Wardrobe Malfunction, Erza says she should look at herself first. Minverva looks down to find her panties exposed, and looks back up to find a smirking Erza holding her skirt. Particularly it's Minerva's flustered reaction that sells it.
Chapter 355: The girls relax in the hot spring only to find that Natsu, Gray, and Happy are already there (it's a unisex pool). Lucy and Wendy freak out, but Natsu and Gray nonchalantly comment that they've seen the girls naked so many times that the novelty has worn off! For her part, Erza's unfazed (they used to bathe together all the time!) and says they should wash each other like when they were kids... this leads to Natsu accidentally beating up Erza.
Chapter 356: Juvia makes "Gray-bread" which has Gray's face on it. Gray says he doesn't want it so she produces "Juvia-bread" as an alternative. Gray hesitates again and Elfman eats some of it, causing Juvia to bemoan the fact that she was "eaten out" by another man! Gray feels bad and grabs some of the bread to eat, but accidentally gets some of the Gray-bread...
Chapter 359: Loke reveals that he knows the addresses of some of the former Magic Council members. Lucy deduces that he got the information through a few of his many girlfriends as Loki whispers the "details" to an EXTREMELY red-faced Wendy. Later, Natsu and company visit one of the ex-Council members in question...the old man's granddaughter walks into the room and Wendy gets adorably red-faced again: "This is Loke-san's..."