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[[quoteright:350:[[Webcomic/GirlsWithSlingshots http://static.tvtropes.org/pmwiki/pub/images/getting_laid1.jpg]]]]

->''"When you haven't been getting any, other people notice that. Other people pick up on that. You yourself don't know that you haven't been getting any; you just think, 'oh, another week has gone by'... But on the other hand, when I haven't been getting any '''and then I get some,''' overnight I become a different person. Next day you wake up, you're Mahatma Gandhi. You're full of love. You're a visionary. You care about world peace. I have a smile for everyone. 'Why yes, I'd love a Street Sheet! In fact I'll take all that you have! Keep the spare change! Why yes, I am getting some!'"''
-->-- '''Marga Gomez'''

This is when a character not known for their sexual prowess acts differently enough (usually more cheerful or mellow) for other characters to notice and question it. They (and sometimes the audience) find out that it is because said character somehow got laid.

(Alternatively, they'll go through the DidYouGetANewHaircut routine.)

Normally used on characters that are a bit grumpy or disillusioned, proving that [[YouNeedToGetLaid all they needed was to get laid]]. It's almost AlwaysMale in this case, as the female equivalent is more subdued.

Compare to VirginVision, where another person can tell a character has had sex without any clues being given off, and VirginityFlag, where there is a blatantly obvious sign of the loss of virginity. See also SexDressed and SexyShirtSwitch.


[[folder:Anime & Manga]]
* ''Anime/{{Gundam 00}}'': ChasteHero Setsuna asks his teammate Lockon "what are Allelujah and Sumeragi doing next door?" in the CD drama.
* In ''Manga/JunjouRomantica'', Miyagi teases his collegue Hiroki about this a few times, once just to watch him squirm.
* ''LightNovel/{{Bakemonogatari}}'': Araragi is seen in what one might call an exuberant and joyful mood. It's difficult to confirm that anything really did happen the previous night, but he does seem awfully happy.
* Implied in ''Anime/ErgoProxy''. After a certain point in the plot Vincent and Re-l start acting a lot nicer to each other. This is never explained.
* ''VisualNovel/SchoolDays'': While never asked, Taisuke has this expression in a certain episode. This being School Days, that's because the night before, he indeed had sex, or rather, [[spoiler:forced himself on Kotonoha while she was shocked at knowing that Makoto chose Sekai for his Folk Dance partner. She coldly dismissed him the day after and Taisuke is none the wiser that what he had done is basically rape]]. Did we mention this anime is a DysfunctionJunction?
* ''Manga/{{Gravitation}}'': Played with/inverted. The night after Shuichi first has sex with Yuki, he walks around with glowing eyes and an enormous smile, asks his best friend to ask him what happened last night, and then won't specify.
* ''LightNovel/HaruhiSuzumiya'': In the tenth novel, when Kyon is acting more cheerful and upbeat than usual, Taniguchi mutters "What's with you? Don't tell me you and Suzumiya finally...no, never mind." Considering that he makes no secret of the fact that he assumes the two are dating, it's pretty clear he thought they had their first time when he wasn't paying attention. [[spoiler:They didn't]].
* During the first flashback arc in ''Manhwa/CavalierOfTheAbyss'', Jae Hyuk is seen passionately kissing Serin on top of a bed. The next morning he's incredibly cheerful, even commenting about how great the weather is in the middle of a thunderstorm, leading to his LivingWeapon‎ Diffor, who had a crush on him, to call him out on this.
* In ''Anime/OuranHighschoolHostClub'', the hosts walk in on Tamaki and Haruhi while Tamaki is helping her with her fear of thunderstorms. At the moment, he's putting a blindfold and headphones on her to assure that she won't hear or see anything. Needless to say, they assume that it's [[DoesThisRemindYouofAnything something else]].
* In ''Manga/NatsuENoTobira'', [[TheseTwoGuys Jack and Linds]] end up finding out about [[spoiler: Marion losing his virginity to Sara]] when they go to her house to see if he's around and... find their friend [[ShirtlessScene only in a towel there.]]
* ''LightNovel/{{Shimoneta}}'': {{Zigzagged}} in chapter 10, when Ayame walks in on Tanukichi and Oboro in the girls' locker-room and sees Tanukichi has pinned Oboro on the floor. Then sees Oboro is breathing heavy and smiling with a faint blush from just having [[spoiler: [[TheModestOrgasm his first orgasm]]]]. Ayame doesn't say a word, but [[NotWhatItLooksLike clearly thinks]] [[CaughtWithYourPantsDown she's interrupting]][[note]]What really happened: Oboro is a guy who [[DudeLooksLikeALady looks]] ''[[CrossdressingVoices and sounds]]'' like a darkhaired girl. Tanukichi had set a trap for Gathered Fabric and mistook Oboro for one of them, because the room was dark. So he wrestled him to the floor to capture him, but didn't realize his mistake until the lights came back on. However, Tanukichi realized his foot was pressed against Oboro's crotch, which when it dawns on him that Oboro is actually a male, but he [[CrotchGrabSexCheck double checks to be sure]] and inadvertently causes Oboro to [[TheModestOrgasm get off from it]], which is when Ayame walked in. She sees Oboro disheveled on the floor with Taukichi holding [[LonghairedPrettyboy "her"]] legs open and her panties were [[JizzedInMyPants visibly wet]], so Ayame assumes Oboro and Taukichi had just finished having sex[[/note]] so she ducks back outside and slams the door behind her.


[[folder:Comic Books]]
* In ''Astonishing Comicbook/XMen'', after Kitty Pryde and Peter "Colossus" Rasputin finally consummated their relationship, they go to the kitchen together in high spirits, only to be surprised by the presence of Kitty's BigBrotherMentor Wolverine. Logan simply looks back and forth between them and says "'Bout time." Logan has [[TheNoseKnows super smell]] among his SuperSenses and almost certainly caught the whiff of afterglow.
* A Franchise/{{Superman}} story from the 1970s, ''Who Took the Super out of Superman'' has Lois Lane visiting Clark Kent's apartment and cooking him a beef bourguignon dinner, before having a romantic night together. Lois goes into work at the Daily Planet the next morning and a coworker, Steve Lombard, notices her acting unusually. It's ultimately ambiguous whether or not Clark and Lois actually did sleep together. The ''Superman'' fandom has turned beef bourguignon into something of an in-joke. Occasionally, beef bourguignon will also appear as a MythologyGag.

[[folder:Comic Strips]]
* In ''ComicStrip/ForBetterOrForWorse'', when Elly's friend, Connie finds out her dog Sera had gotten out and had been with the Elly's dog, Farley, Elly tries to be optimistic and suggest that maybe nothing happened. Connie doubts that noting that this is the first time she's ever seen a dog "smile". Sure enough, Sera ends up having puppies.

[[folder:Fan Works]]
* In a ''Franchise/CodeGeass'' fanfic ''[[http://www.fanfiction.net/s/6969408/15/In_the_End In the End]]'', Lelouch is in a really good mood after losing his virginity to C2.
* In ''[[http://hpfandom.net/eff/viewstory.php?sid=9971 Crazy Little Thing Called Odd]]'' by ''[[http://hpfandom.net/eff/viewuser.php?uid=1827 bottoms up]]'', the students realise that Snape is in a ridiculously good mood every time [[Literature/HarryPotter Harry]] has had detention with him. They just don't realise why that is. [[HilarityEnsues Hilarity ensues.]]
* Athena Prime had a ''KnightsOfTheOldRepublic'' [[http://www.kotorfanmedia.net/node/23 fanfic]] where ''HK-47'' pulls this trope in regards to Revan and Carth.
-->'''HK-47:''' ''Extrapolation, Master: The commander meatbag exited your bunkroom with a smile on his face, and you are presently unclothed, your body temperature is higher than normal, and your facial read-out falls in the range termed as 'flushed.' Do you require some post-coital refreshment?''
* In [[http://www.fanfiction.net/s/3362802/1/One_Thing_Leads_to_Another One Thing Leads to Another]], Robin and Starfire come to the common room after their first time. Among their teammates, one is an empath, the other is a shapeshifter with an enhanced sense of smell. They are quick to do the math.
* Subverted in the ''Anime/TengenToppaGurrenLagann'' fanfic ''[[http://www.fanfiction.net/s/8085240/2/The_Spiral_Path The Spiral Path]].'' Everyone assumes this with Rossiu and Kinon, but the author notes go out of their way to point out that there wasn't any sex.
* Happens frequently in ''Series/TeenWolf'' fics. Because in {{Canon}}, werewolves have a much [[SuperSenses better sense of smell]] than regular humans, most fans agree that they would presumably be able to tell that someone has recently had sex by scent alone.
* In the ''{{WebComic/Homestuck}}'' fanfic ''[[http://archiveofourown.org/works/710801?view_adult=true&view_full_work=true Like Lovers Do]]'' Aradia manages to not only tell that Eridan and Feferi have pailed, but also to convey her [[IKnewIt smugness]] about it without saying anything in particular.
--> ''(at breakfast the morning after)''
--> '''Aradia:''' In a good mood, aren't we. Slept well?
--> '''Eridan:''' [[BlatantLies It's just this cream. It's really good.]]
--> '''Aradia:''' That it is.
--> '''Narration:''' In the meanwhile, Aradia just finishes washing her cup and goes upstairs without any other comment. And that’s pretty much it. You’re sure she knows, she just doesn’t give a damn about it.
* In chapter three of ''Fanfic/BaitAndSwitchSTO'' Captain Kanril Eleya strolls onto the bridge after having a one night stand while ashore at Deep Space 9. Her first officer spots it immediately and gives her a look.
--> '''Eleya:''' What?\\
'''Tess Phohl:''' What do you mean, ‘what,’ Eleya? You walk in here looking like a [[HoldYourHippogriffs grayth that just dined on prize alicorn]] and expect nobody to notice?
* Luna immediately figures this out, by picking up on Celestia's good mood and the spring in her step in ''[[FanFic/TheNonBronyverse TD the Alicorn Princess]]''.
* In ''Fanfic/EmpathTheLuckiestSmurf'', Duncan [=McSmurf=] is able to tell through his sense of smell whether a fellow Smurf just had [[NocturnalEmission "the Smurfette dream."]]
* ''Fanfic/DoingItRightThisTime'': In Chapter 3, Ritsuko is looking ridiculously cheerful and sporting a huge hickey. Misato tries to work up the nerve to ask the obvious question... [[spoiler:And then Maya walks into the room sporting a ''collar'', which answers questions Misato didn't want to ask.]]
* In chapter 8 of ''Fanfic/AdviceAndTrust'' Rei manages to piece together that Shinji and Asuka were just having sex in a supply closet based on how they smelled, their lack of tension, and the fact that they arrived back at the classroom at the same time even though they left separately. By extension, she's able to figure out that they've been in a SecretRelationship for the past few months (something that nobody else noticed) even though she had less than a month of experience with recognizing social cues.
* ''Fanfic/ACrownOfStars'': In chapter 44, when Daniel greets Shinji and Asuka he notes that they seem very pleased and asks if they got any sleep the last night. Shortly after Ching asks Asuka how good Shinji was. When Asuka asks if they are so obvious, Ching replies that they're practically ''glowing''.
-->'''Daniel:''' And you two seem like you passed a very pleasant night. Get any sleep?\\
'''Asuka:''' (thinking) 'Oh Gott, is it written all over my face or something?'
* Victoria, in the ''VideoGame/DragonAgeInquisition'' fanfic ''[[Fanfic/TwiceUponAnAge All This Sh*t is Twice as Weird]]'', knows that Mahanon is setting up his GrandRomanticGesture for Cassandra. When she wakes in the morning and finds that [[InnocentCohabitation his bed wasn't slept in]], she figures out what happened; when he comes back to the room a little while later, she proceeds to razz him as only an honorary little sister can.
-->'''Victoria:''' (''sing-song voice'') Someone never came to be-ed...
* Alluded to in ''FanFic/TheApprenticeTheStudentAndTheCharlatan''. Trixie's first appearance sees her teasing Twilight over apparently getting laid with Nova, due to the fact that she seems like she's in a lot better mood than usual that particular morning, [[LongingLook not to mention the way she was looking at him]], though it turns out it's just because it's the first proper night of sleep she's had in months.

* (In)famously in ''Film/GoneWithTheWind'', when Scarlett wakes up singing after a night of [[MaritalRapeLicense semi-consensual sex]] with Rhett.
* ''Film/EveryWhichWayButLoose'': Slowly pieced together by the main character's sidekick. Initially, he thinks their literal TeamPet just mated.
* The Brazilian movie ''Film/AMulherInvisivel'' has a line that goes like "You're too happy. Are you screwing someone?". He... [[ImaginaryFriend kinda is.]]
* In ''Film/TenInchHero'' Jen, who is a virgin, masturbates for the first time. Later:
--->'''Priestly:''' Hey, Jen, did you do something different with your hair?
--->'''Jen:''' No, why?
--->'''Priestly:''' I don't know. You just look different.
* In ''Film/TurnerAndHooch'', when the normally uptight Turner tells his workmate to relax, the workmate suddenly proclaims, "You humped the vet!"
* In ''Film/{{Sliver}}'': "You ''have'' been fucking your brains out!"
* In ''Film/TheSpecials'', Deadly Girl is a bit more upbeat than usual and Minute Man is looking a little more relaxed. Ms. Indestructable takes one look at them and blurts out "Did you two sleep together?!" [[TheSnarkKnight Deadly Girl]] wryly asks if oral sex counts, then cheerfully announces "Doughnuts for everyone!"
* In the 1987 ''Franchise/{{Dragnet}}'' movie, after rescuing a would-be VirginSacrifice, Friday consistently refers back to it whenever he mentions her name. Until [[http://www.youtube.com/watch?v=BtKUyfkBA2w the very end]]:
---> '''Streebeck:''' ''[catches Friday yawning on the way into work]'' Long night last night partner? [[IncrediblyLameFun I thought the Christian Science Reading Room closed at ten.]]
---> '''Friday:''' Not that it's any of your business, Mr. National Enquirer, but I had the pleasure of spending a quiet evening in the company of Connie Swail.
---> '''Streebeck:''' Wait a minute. "Connie Swail?" Don't you mean "''the virgin'' Connie Swail"?
---> ''[Friday merely turns his head and looks at Streebeck with a smile, accompanied with a [[ThemeTune *BUM-BA-DUM-BUM!*]] ]''
* A couple times in ''Film/{{Mallrats}}'', other characters comment that Brodie is "glowing" shortly after he had [[ElevatorGoingDown elevator sex]].

* In ''[[Literature/XWingSeries Starfighters of Adumar]]'', Wedge, the leader and responsible type of Red Flight, reconciles with his old love interest Iella Wesseri. The next morning he is exuberant, a little flighty, and joking readily, while his WingMan, who normally is the one with all those traits but spent the night on the balcony watching for attackers, is grumpy. It's never ''said'' outright, but the scenes do imply that Wedge and Iella had sex, and Wes almost-but-doesn't-quite ask him.
* In Alex Sanchez's ''Literature/RainbowRoad'': "You two sure are smiley today. Did you finally bone last night?"
* After a night with Morelli in ''Four to Score'', Literature/StephaniePlum has to deal with Connie, Lula, Vinnie, and Ranger all commenting on her suddenly active sex life as soon as she's in the same room with them (and she didn't ''tell'' any of them).
* Traci Harding's ''Literature/TheAncientFutureTrilogy'': "I know that walk. That's Teo's 'I just got laid' stride."
* Paul Robinson's ''Literature/InstrumentOfGod'': Supervisor 246 recounts his first time with a woman as another teenager shows up. "‘Look, I'd better go,' I said, and I tried to walk past him. Well, I guess her boyfriend could smell it on me, because he said, ‘Did you just fuck her?' I probably should have just lied, and said ‘no,' then left. [[WhatAnIdiot ‘Yeah,' I said.]]"
* In Creator/TomClancy's ''Literature/ClearAndPresentDanger,'' the FBI director's secretary starts a relationship with [[spoiler:a drug lord's intelligence agent]] and when she goes to work the next day, her coworkers notice she has "a sparkle in her eye that could not be hidden."
** Clancy did something similar with Literature/ExecutiveOrders: President Ryan's Secret Service detail can tell that he and his wife had sex the night before by the way the two are holding hands.
* ''Literature/HonorHarrington'': After Honor sleeps with Paul Tankersely, her admiral notes that "dinner agreed with her".
* In ''Literature/ThePursuitOfHappyness'', by Douglas Kennedy, Sara's brother Eric knows that she slept with Jack, the guy she met at Eric's party.
* In one of the ''Series/AlienNation'' books, Sykes ''tries'' to have sex with an alien, leaving him with bruises on his neck [[spoiler: from her legs; the aliens become very "uninhibited".]] While humans generally don't know enough about Tenctonese physiology to figure out what happened to him, his coworker is an alien too. He rehearses lying to cover it up. The ''moment'' he enters the workplace, another alien says "did you copulate with a Tenctonese last night?" Sputtering, he tries to run off, with the alien shouting behind him "sexual ignorance is dangerous!" Meeting his coworker only leads to more awkwardness (as his coworker knows his alien girlfriend). An almost identical scene, following almost identical events the night before, occurs in the TV series.
* ''Literature/TheSoundAndTheFury'' is this trope played seriously. Caddy's loss of her virginity is an obsession within the Compson family, with each of the members having a different reaction to it. Her special needs brother Benjy can even ''smell'' that something's changed about her after her first time.
* ''Literature/TheToughGuideToFantasyland'' tells you the signs to look for in one of your tour members and the correct etiquette for the situation.
* ''Literature/SongAtDawn'': Everyone can tell that [[spoiler: Dragonetz and Estela]] have had sex because their love ballads are suddenly much better.
* A more subtle example in ''Literature/TheLostFleet''. After the first time Victoria Rione seduces John Geary, both of them come to the ''Dauntless''[='=]s bridge, where Captain Tanya Desjani takes one look at them and instantly figures it out, despite Geary trying to act normal, and Rione being a politician (i.e. can easily fake any expression). Desjani makes a suggestive comment and leaves the bridge. Dumbstruck, Geary mouths "How?" to Rione resulting in a "need to know" speech, which Geary interprets as WomensMysteries.
** This scene becomes HilariousInHindsight a few books later when Desjani develops feelings for Geary herself.

[[folder:Live Action TV]]
* ''Series/BuffyTheVampireSlayer'': Xander does this to himself in the middle of a very weird night. The best part is that no one else figures it out.
* ''Series/{{Angel}}''
** This happens a couple of times between Angel and Wesley. In a season 2 episode, Angel demonstrates his SuperSenses by remarking that Wesley had sex with a bleached blonde the night before. In season 4 [[EvilIsPetty during his Angelus turn]], he mentions in front of the whole gang that Wesley has been having sex with Lilah.
** Angel is on the receiving end after he has sex with fellow vampire Darla.
-->'''Lorne:''' Jeez, keep your pants on! (Angel enters) Well, I see we're a little late with ''that'' advice.
* In ''Series/JustShootMe'' Finch comes into work after sleeping with his supermodel girlfriend and somebody comments, "Wow, the only time I've seen you this happy is two years ago whe--''you had sex, didn't you?''"
** In another episode, Nina claims that Maya has sex every twelve months, which is how she knows to set the clocks back for Daylight Savings Time.
* In French series ''Series/LazyCompany'', Louise can tell almost instantly that formerly shy virgin Private Henry is not a virgin any more, because he is "a little taller, a little less honest".
* ''Series/{{Scrubs}}''
** There's only one day of the year when Dr. Bob Kelso's in a good mood (the day after his wedding anniversary) so people only ask him for anything once a year. This actually turns out to be a subversion: [[spoiler:his wife always spends the anniversary at "fat camp". Kelso, however, allows the myth to continue so people only ask him for things once a year.]]
** Another subversion where JD has trouble getting it up and walks into work thinking everyone is doing this when they're not:
-->'''Dr. Cox''': Hey, Newbie, what's up?
-->'''J.D.''': Everything! Everything's up!
-->'''Dr. Kelso''': Rise and shine, sport!
-->'''J.D.'s narration''': What, did someone send out a flier?!
-->'''Todd''': Hey, J.D.! How's your penis?
-->'''J.D.'s narration''': All right, calm down, he says that to everyone.
** Another example is Turk, who demonstrates an uncanny ability to always know when two people have had sex. He deduces J.D. and Elliot's hook-up solely on how they exchanged nods at work. He then points out two male orderlies who he claims have started dating, and he's quickly proven right. In J.D.'s case, explained by the sex gongs they bought each other. Except, of course, when JD moves out and Turk still hears it...
--->'''Turk''': "Yeah, buddy!"
** A great example is when Dr Cox starts dating pharmaceutical rep Julie (played by Heather Locklear) in season two. He goes from surly Cox to carrying Julie piggyback singing "Perry's gonna get some loving!" while she smacks his ass. He even winks at J.D.
** Turk learns about Denise's and Drew's relationship from Todd, who's apparent super-pervert skills allow him to detect any sex in the hospital, their position, and what clothes they are/aren't wearing.
*** "Why won't you let him take off his pants?"
* In ''Series/{{Frasier}}'' the incredibly uptight Niles was oddly chipper -- when someone called him on this, he responded with IHaveJustOneThingToSay: "I find that comment boorish and offensive and... ''impossible to deny!''"
** Parodied in another episode, when Roz and Frasier end up sleeping together after a night at his apartment. The next morning, as a panicked Frasier tries to cover up what happened, Martin enters:
--->'''Martin''': Mornin', Fras.
--->'''Frasier''': Morning, Dad.
--->'''Martin''': You see the paper yet?
--->'''Frasier''': Uh, no, I haven't.
--->'''Martin''': Big story about how Roz's purse spent the night on the coffee table.
* In season three of ''Series/{{Glee}}'' after Will Schuester and Emma Pillsbury [[UnresolvedSexualTension finally]] [[WillTheyOrWontThey have sex]] ([[spoiler:after the New Directions finally win at Nationals]]) Sue sees her the next day and quips "Why do you look different?"
* ''Series/{{Friends}}'': In "The One With Phoebe's Husband", Ross was dancing down the street and was called out on it by an old lady: "Well, somebody got some last night". He gleefully shouts back "twice!"
** In the pilot, Monica has just been with Paul the Wine Guy, and her co-worker calls her on why she's smiling all the time. As Rachel said earlier, "It looks like you slept with a hanger in your mouth!"
** In "The One After Ross Says Rachel" when Phoebe sees Chandler and Monica for the first time since their trip to London, where the two hooked up, she immediately yells out "You had sex!" to which the two start sputtering and trying to deny it. Phoebe says to Chandler, "Well, obviously not YOU. I meant Monica." Monica then denies it as well. In a rare subversion, Phoebe accepts this, saying "Man, this pregnancy's throwing me all off."
* An episode of ''Series/WillAndGrace'' had two characters do this to Grace, with one actually able to identify the other man with this too. Both cases are a simple "You had sex!"
** Karen takes this UpToEleven. She's able to tell ''exactly'' what Grace has done with a man in a matter of seconds. Grace is understandably terrified of this power.
* In ''Series/That70sShow'', the day after Eric and Donna have first made love, a weirded-out Donna appears from Jackie's point of view to have the words "I had sex" on her forehead. Eric, on the other hand, had the words "Guilty" written on his forehead when talking to Donna's father.
* In ''Series/NightCourt'', the day after Christine gets charmed by a young artist she successfully defended, she shows up smiling as usual. Resident lecher Dan takes one look at her and declares "You bopped the kid!".
* In ''Series/WhosTheBoss'', Tony runs into [[GrandmaWhatMassiveHotnessYouHave Mona]] after he's had a "successful" date. Mona nonchalantly busts him.
-->'''Tony''': [stunned] How could you tell?
-->'''Mona''': [[ReallyGetsAround How does a sailor know when a storm's a'brewin!]]
:::She also knows he didn't sleep with Angela, because she wasn't singing "Climb Every Mountain".
* ''Series/{{NCIS}}''
** "Endgame" has Tony doing this when [=McGee=] walks into the office extremely happy. Tony refers to it as "Pulling a Heston" in a reference to ''Franchise/PlanetOfTheApes.''
** Ziva does it to Tony once as well -- ''gleefully''. "It's okay to admit it, we're all adults here!" Of course, Fornell is behind her: "That's a subject I'd be willing to debate, Officer David."
* ''Series/{{Life}}'': Crews got the picture when he and Reese are on their way to the desert, and a song's playing on the radio, and Reese is humming along without realizing. Crews quips, "You were humming," Reese goes, "What? No I wasn't," and Crews goes, "When people hum without realizing, it usually means they're... happy." To which Reese replies, "I wasn't humming, and I'm not happy!"
** What really blows her cover is when their boss calls the hotel room the two are staying in, and immediately starts talking dirty over the phone having assumed they had separate rooms and that Reese would answer.
* Rather a sad example in ''Series/GilmoreGirls''. Lorelai comes home and sees Rory and the very married Dean stumble out of Rory's bedroom looking dishevelled and a little too happy. The anger and disppointment on Lorelai's face is heartbreaking.
* In season two of ''Series/{{House}}'' the team has gathered in the middle of the night and wonder what is taking House so long. They know he left with Stacey, but Cameron is sure that they didn't have sex (while Foreman hopes they did, since it might put House in a better mood). Enter House, singing and smiling. Played with, as House was not happy about the sex itself (he hires prostitutes from time to time, so...), but because he still had feelings for Stacy.
* ''Series/SpinCity''
** Loser Paul walks into work singing and skipping after having sex. [[http://www.youtube.com/watch?v=pcYhkj0quV8 He struts]] down the hall to the Bee Gees' "Stayin' Alive" ala ''Film/SaturdayNightFever''.
** James comes in one day with a subdued smile on his face, which piques Nikki's interest.
--->'''Nikki:''' That look... I know that look. You had sex last night.
* On ''Series/{{Cheers}}'', Woody Boyd and his fiancée lost their patience (and most likely their respective virginities) just one night before the wedding. Sam was the first to figure out why, of course.
-->''"You're smiling the way I smile after I..."''
* One episode of ''Series/StargateSG1'' features Carter and O'Neil riding an elevator with Carter [[ThemeTuneCameo humming the whole way]], prompting [[http://www.youtube.com/watch?v=fXtIvIVuGa4 an amusing exchange]].
** It gets better: Word Of God says she was supposed to hum the ''Series/MacGyver'' theme tune to surprise Richard Dean Anderson, but no one could remember it, and asking him would've spoiled the surprise.
** Then there's a scene in the episode "Crossroads" involving Teal'c, of all people. An old flame has come to the SGC to get help. They are shown kissing in her room. Cut to Teal'c leaving the room grinning from ear to ear as Daniel walks up.
* One episode of ''Series/SeventhHeaven'' features Annie and Lucy sharing knowing glances over (I think) ice cream after they'd both gotten some.
* In season two of ''Series/VeronicaMars'', immediately after Veronica sleeps with [[spoiler:Duncan]] she bumps into [[spoiler:Logan]] who says she looks different and asks if she's changed her hair. At home her father makes a similar comment and she wonders whether he's really such a good detective that he can tell she's had sex.
* Averted in ''Series/DegrassiTheNextGeneration'': J.T. keeps bragging about his and Liberty's sex life, but Toby doesn't want to hear anything else about it. Then Liberty dumps pop all over J.T.
* Happens to C.C. and Niles in ''Series/TheNanny''. Niles enters singing and C.C., normally an EnemyToAllLivingThings, gets a scene where she sings and attracts a dove to her hand like a Disney princess.
** In another episode, Fran drunkenly stumbles into Max's room and ends up sleeping in his bed. The next morning, they panic and wonder if they had sex, but ultimately decide it didn't happen, as they each have a particular "tell." But then, just as the episode ends, [[RealAfterAll they begin doing those very things.]]
* Played Straight in ''Series/{{Bones}}'', Season 2, Episode 14 'The Man in the Mansion.' Bones comes into work looking 'very happy,' and Angela instantly knows she's had sex with Sulley.
* Chief Johnson in ''Series/TheCloser'' gets very cheerful when she gets some.
* Though he really tries to hide it, Beckett can tell every time Series/{{Castle}} has slept with [[GirlOfTheWeek Ellie Munroe]].
** In the second episode of season five, Lanie can immediately tell that something is different about Beckett on her first day back to work, and eventually works out that it's because she's having regular sex. This causes Beckett a certain amount of fluster [[spoiler: because she's trying to keep the fact that she and Castle have started a relationship secret from everyone.]]
* Happens offscreen on ''Series/PartyOfFive''. Nina was immediately able to tell that Julia was no longer a virgin.
* ''Series/{{Community}}'' played with this trope in the episode Modern Warfare. Jeff and Britta have sex on their study group's table during a paintball tournament, and as they both walk to their study group the next day, they remind eachother "nothing's changed". Abed [[ExactWords instantaneously picks up on the dynamic changed and makes note of it.]] No one notices.
* Ron Swanson from ''Series/ParksAndRecreation'' always dresses like Tiger Woods after a night of sexytimes.
* Subverted in ''Series/{{Sliders}}'' where it is actually Wade's disheveled and decidedly un-chipper appearance and demeanor that cause Quinn to say "Did you get lucky or run over?" [[spoiler: Neither; she'd been partying with vampires who were trying to change her.]]
* Barney does this in ''Series/HowIMetYourMother''. "Aww, man, you guys did it, didn't you?"
* After spending the whole film/web-series longing after Dr. Kelly in ''Series/BattlestarGalacticaBloodAndChrome'', Adama finally gets to do her after talking about her dead husband and how the war-machine lied about this death in order to boost enrollments. Shortly after he finds Coker playing on a piano and takes a swing of expensive wine with a wide smile on his face.
-->'''Coker:''' ''Just had to [[PardonMyKlingon frak]] her, didn't you?''
* In ''Series/{{Taxi}}'', after Latka got married to Simka, he ended up stranded in a broken down cab with a female cabbie in the freezing cold. She told him the only option was for them to [[MateOrDie have sex or freeze to death.]] After the ordeal, Latka went home hoping Simka wouldn't find out, but as soon as they hugged, Simka screamed, "YOU DID IT WITH ANOTHER WOMAN!"
* ''Series/NewTricks'': The boys have this reaction when Sasha enters the office with a spring in her step in "The Lottery Curse". Leads to a SideBet about whether she had or not.
* ''Series/{{Farscape}}'': Chianna and Rhygel are forced to share a one-person "shelter tube" while the ship's atmosphere is vacuumed out, provoking the following exchange:
-->"I don't care what you call it, stop sticking it in me!"
-->(Farting noise)
-->"What was that?" (her a voice is several octaves higher than usual)"What did you just do?"
-->"I'm sorry, but I always fart helium when I...I mean, when I..."
-->"You're DISGUSTING!"

* Music/TheLonelyIsland just had sex, and the [[http://www.youtube.com/watch?v=lQlIhraqL7o video]] is made of this trope. With TV broadcast and fireworks. Seriously, look at Akon's face whenever he's on-camera.

[[folder:Video Games]]
* ''VideoGame/KnightsOfTheOldRepublicII'': Given that the result of getting enough light side points is a sort of healthy glow, Mira invokes this by commenting that she thought the player and whichever potential love interest he/she has a higher Influence with "[[UnusualEuphemism hooked up a power coupling]]".
* ''VideoGame/DragonAgeII'': All of the post romance banters but this one is particularly good.
--> '''Merrill''': Are you happy?
--> '''Anders''': Beg your pardon?
--> '''Merrill''': S/he seems happy. Hawke, I mean. Are you?
--> '''Anders''': Yes. I suppose I am.
--> '''Merrill''': Good. You've spent much too much time being grumpy. It's a nice change.
* Hinted in ''VideoGame/DragonAgeInquisition'' by a pair of Orlesian courtiers hanging around in the main hall at Skyhold. After the Inquisitor and their romance partner of choice have cemented the pairing, these two can be overheard gossiping about things. Their exact commentary depends on who the LoveInterest is.
** Outright stated if a male Inquisitor romances Dorian and has him and Cole in the party later. Cole remarks on how good it is to see Dorian smiling because of the Inquisitor.

* Faye's commentary in ''Webcomic/QuestionableContent'' when watching Marten going home after being away longer than anticipated: "[[http://questionablecontent.net/view.php?comic=840 He is skipping. A bluebird just landed on his shoulder!]] [[SpontaneousChoreography Random pedestrians are joining him in a complicated dance routine!]]"
** Attempted again by [[http://questionablecontent.net/view.php?comic=2642 Dale]], though this time Faye is just annoyed at it.
* The WebComic ''Webcomic/WapsiSquare'' does this [[http://wapsisquare.com/comic/grabtheheadboard/ here]] and [[http://wapsisquare.com/comic/illcallyoulater/ here]] with (another) Monica.
* ''Webcomic/{{Girly}}'':
** Policeguy does [[http://girlyyy.com/go/202 indeed break into song and dance with animals and rainbows.]]
** Hipbone gets one [[http://girlyyy.com/go/562 later on]], resulting in [[http://girlyyy.com/go/564 surprisingly long-lasting benevolence. Eventually it wears off.]]
* Makes an appearance in [[http://leasticoulddo.com/comic/20040305 this]] ''Webcomic/LeastICouldDo'' strip.
** Subverted in a later strip where nobody can identify Rayne's "I just had sex with a midget hooker" face (though in their defense, said face looks like he's having a stroke or something).
* Several times in ''Webcomic/DominicDeegan''. Most notably, when Greg and Pam do it for the first time, Dominic figures it out because, as he points out, some people have a "glow" about them after their first time, but because Greg is a powerful White Mage, in his case, it's [[PowerGlows a little more literal]].
* ''Webcomic/{{Narbonic}}'': Mell and Artie come back from a mission to find Helen and Dave very disheveled and the lab a mess. When Artie asks about the mess, they claim a "series of lab accidents"; Mell just says "I can't believe you guys finally goinked."
** When Mell explains to Artie: "I mean, check him out, he's wearing the red shirt ... ." "The shirt is significant" "It's his best shirt, and it's always Thursday in the rotation. He moved it up to Monday. Plus he cleaned his glasses." "From this you deduced he's had sex?" "No, I knew he had sex 'cause he's smiling. I'm just trying to educate you"
* Twice with Hazel in ''Webcomic/GirlsWithSlingshots''. The first time, [[http://www.girlswithslingshots.com/comic/gws431/ she didn't actually]] [[http://www.girlswithslingshots.com/comic/gws432/ get laid]], but it's the same general reaction. [[http://www.girlswithslingshots.com/comic/gws631/ The second time...]]
-->'''Jameson''': Oh, thank god, you're finally getting laid!
* ''Webcomic/OutThere'': The insightful Miriam concludes that Sherry has broken her long dry spell upon observing the latter's visible discomfort with discussing the topic [[http://outthere.keenspot.com/d/20100602.html]]; James makes a lucky guess based on a similar observation [[http://outthere.keenspot.com/d/20100707.html]], and Clayton explains the most compelling reason she's unable to conceal what everybody else can see [[http://outthere.keenspot.com/d/20100708.html]].
* ''Webcomic/DanAndMabsFurryAdventures'': Alexsi is very happy after her date with Pyroduck. [[http://www.missmab.com/Comics/Vol_1107.php This trope is all but confirmed here.]]
* ''Webcomic/SabrinaOnline'': Zig Zag always seems to know when Sabrina's been with her boyfriend. In Zig Zag's case it's not "Did you just have sex," but "You got laid! Good for you!"
* In ''Webcomic/{{Rhapsodies}}'' Kate's employees have noticed this... frequently... [[http://rhapsodies.wpmorse.com/?p=1874 and it's getting on their nerves.]]
* In ''Webcomic/GunnerkriggCourt'', Parley and Smitty teleport in, blushing - [[http://www.gunnerkrigg.com/?p=1149 Renard sniffs them and chuckles]], to their chagrin.
** [[http://www.gunnerkrigg.com/?p=1156 Followed by Coyote]].
* ''Magnificently'' set up in ''Webcomic/MenageA3'' in [[http://www.ma3comic.com/strips-ma3/brainlocking this strip.]] The actual dialogue appears, in variant form, in the next strip, but the facial expressions in that last panel there say it all.
* Mordred says it (although not in so many words) in [[http://www.arthurkingoftimeandspace.com/0513.htm this]] ''Webcomic/ArthurKingOfTimeAndSpace'' strip.
* Joe says this to Danny in [[http://www.dumbingofage.com/2013/comic/book-3/03-answers-in-hennessy/petting/ this]] ''WebComic/DumbingOfAge'' strip, after the latter strolls into their dorm room practically singing. He's not that far off.
* ''Webcomic/{{SSDD}}'': It doesn't take much for Corporal Gray to figure out that not only Julian and Tessa (whom he's been subtly trying to set up) got laid last night, but also [[http://www.poisonedminds.com/d/20120308.html everyone else on the squad]].
* In ''Webcomic/{{Judecca}}'', the HookerWithAHeartOfGold Snow can see a [[https://web.archive.org/web/20160912192619/http://judecca.co.uk/comic/3-54/ morning-after glow]] from a mile away, to Nayko's infinite dismay:
--> '''Snow:''' Yeees? Did you have a good... ''*BeatPanel*'' ...[[LastSecondWordSwap sex]]\\
'''Sharky:''' it. uh, sure. thanks?

* In 'LetsPlay/LetsDrownOut [=WWF=] No Mercy', Gabriel Mortom has created a wrestler to imitate his friend and commentary partner, [[Creator/BenCroshaw Ben 'Yahtzee' Croshaw]], and have stated that everything about Wrestler!Yahtzee, sans the [[OnlySixFaces face]], is accurate to the real one including a rather pompous entrance dance. According to him, Yahtzee does the exact same dance after he got laid.

[[folder:Western Animation]]
* In ''WesternAnimation/AvatarTheLastAirbender'', Azula makes an offhand comment about how Mai has been in a "strangely good mood lately." It is [[GettingCrapPastTheRadar subtly implied]] that she has been sleeping with Zuko.
* ''WesternAnimation/TimeSquad'' In "Ex Marks the Spot," Larry suddenly acts cheerful and more accommodating around Tuddrussel. Otto even questions why Larry is so cheerful. The sudden change in mood was handwaved as Larry finally giving up being snarky and being nicer, but given the suggestive imagery in Larry preparing Tuddrussell's meal (i.e., the gravy being pumped inside a turkey to the point of near bursting and a lone cherry sinking into the turkey), it had to be something more.
* In ''WesternAnimation/FamilyGuy'' Brian is able to instantly tell when Stewie had [[PrimalScene walked in on Peter and Lois having sex]].
* In ''WesternAnimation/KingOfTheHill'', Peggy remarks that Dale and Nancy's relationship is so passionless that they only have sex once a year, on Dale's birthday. However, in that particular episode the pair rediscovers their passion, and the next time Peggy sees Nancy she figures out that they did it -- [[ComicallyMissingThePoint and panics. "Oh no, we forgot Dale's birthday!"]]

%% No real life examples, thanks.