Alice and Bob are together and Alice needs to change clothes for some reason. Bob turns his back to allow Alice some privacy, with sometimes a "No Peeking!" Request being necessary for him to turn. However, either by accident or by design, Bob finds himself facing a reflective surface that allows him a view of Alice as she undresses.
Aside from Fanservice, a scene like this can serve several purposes. It can be used to ramp up the Unresolved Sexual Tension between two characters. Whether Bob chooses to watch or look away can tell the viewer a lot about Bob's character. And if Bob is unaware of the reflection but Alice turns around and sees it, it can result in Bob becoming an Accidental Pervert.
- In Captain America V3 #9, Sharon Carter watches her ex-boyfriend Steve changing into his uniform in a mirror.
Steve: You're not watching me, are you?
Sharon: [staring directly at the mirror] Nope.
- In Grimm #2, Nick finds himself unable to tear his eyes away from the reflection of Maya (a female Grimm) undressing, mostly because she is continually dropping interesting tidbits as she speaks, demanding his attention.
- In one of the Hulk Magazine comics, a wandering Bruce Banner is accidentally splashed with water by a woman. She apologizes and makes him come inside and gives him some clothes to change into. Since he is in a hurry, she tells him that he can change in the room, and that she won't peek. She turns around and then secretly pulls out a hand-mirror, clearly enjoying the show.
- A superpowered variation occurs in Superboy (New 52) in issue #10: Superboy calls out that he's started their campfire, but when she doesn't answer, he searches and is stunned to walk in on Wonder Girl (Cassandra Sandsmark) bathing in a lake. Wonder Girl has a Naked Freak-Out angrily calling him a pervert and telling him to turn around. Superboy turns around, but puts his hand on the ground and smiles. Wonder Girl remembers that he can "see" through what he is touching and angrily throws a rock at the back of his head to get him to cut it out.
- In SpyBoy, the eponymous character is sharing a plane with Bombshell (who is, as her name suggests, a bombshell). She warns him not to look back, and so he promises not to turn around while staring at her reflection in the sheer surface in front of him. His Super-Deformed alter ego informs him that he's going to hell for this.
- In the erotic graphic novel Teach Me Too by Enrique Villagran, as part of a plan to seduce her nephew, Daphne starts deliberately pleasuring herself in a position in her bedroom where she knows she will be reflected in the window in her nephew's bathroom so he can see her. The plan works.
- In Top Cow's Tomb Raider, Lara is taking a relaxing bubble bath which is interrupted by Chase who has information on the plot for her. She's covered by Censor Suds, so she's unconcerned with him in the bathroom until she climb out of the tub and she asks him to turn around, which he complies. But as she's drying herself, she notices he's been staring at her through the mirror and angrily throws the towel at his face.
- Zolastraya And The Bard contains a completely gratuitous scene where the latter watches the former change clothes in the mirror.
- Dan in Real Life: Dan is hiding in the shower when Marie starts to undress. He tries to avert his eyes, but ends up looking at a reflection of her.
- In Dear John, John watches Savannah undress by her reflection in the mirror.
- Dirty Dancing: While driving back from their dance performance, Johnny watches Baby change via the car's rearview mirror.
- Flash Gordon: In the scene after Flash is revived, Princess Aura tells him to change into a noble's uniform and turns around. However, she uses a mirror to watch Flash while he undresses.
- In Foolish Wives, Count Sergius, who is a total creep, lures Helen into an isolated cabin for refuge during a storm. He pretends to turn away as she changes out of her wet clothes, but actually holds up a mirror.
- In G.I. Joe: Retaliation, Flint watches Jaye change out of her evening gown in the reflection on a TV screen, which hints at their relationship in the comics where they are a couple.
- In the 1990 film The Great San Francisco Earthquake, there was a scene where a husband and a wife were in an elevator and the wife needed to change. She told him to turn around and he did while the wife stripped her top off. There just so happened to be a mirror in the elevator and the husband glanced over at the mirror as the wife changed. No nudity was seen by the audience, but we can tell by the husband liking what he saw.
- In Iron Man 2, Natasha/Black Widow changes out of her evening gown into her Spy Catsuit in the back of Happy Hogan's car. Hogan spies on her with the rearview mirror and nearly crashes the car. She catches him and tells him to keep his eyes on the road.
- Logan Lucky: After Joe escapes from prison, he is changing out of his Institutional Apparel in the back of the car. He tells Mellie that he is going to naked and not to look. She sneaks a peek in the rearview mirror.
- The Parole Officer has socially inept Simon Garden accidentally seeing his proto-girlfriend naked after her pet cat shoves the bedroom mirror to the correct position.
- Used in Raiders of the Lost Ark: Marian steps behind a screen to change into the dress Belloq provided but just happens to notice a mirror that gives him (and the audience) a good view of her topless from the back, further marking him as a creep.
- In Saving Silverman, after falling into water, Silverman watches the girl dress in a laundromat dryer door reflection.
- In Twentieth Century, Owen O'Malley (and the audience) sees Lily's Toplessness from the Back in the mirror when she dresses up for the evening out.
- In Tamil movie Vettai (Hunt in english), Jayanthi steps out of the shower in a Modesty Towel and briefly opens it in the living room to readjust it, with the audience's view being blocked by her Love Interest's head who is sitting on the coach with his back to her. When she notices him she hurries to her room to get dressed and comes back and they talk. Later, after he left, she notices the mirror in the living room and has a belated Naked Freak-Out when she realizes she gave him an eyeful.
- What a Carve Up!: When Ernie finds himself in Linda's room, she asks him to turn around so she can finish getting changed. He does so but finds himself facing a mirror that he hurriedly tilts downwards as she starts to take off her bra.
- In With Honors, Courtney calls Monty into the bathroom to talk to him while she is in the shower and shaving her legs (we can partly see her through the shower curtain). Though his back is turned he can't resist checking her out in the mirror, and after leaving he remarks "Never wanted to be a razor so bad in my life."
- Young Lady Chatterley II: When Cynthia starts stripping in the back of the limousine (and then starts having sex with the Count), Carl the chauffeur is watching in the rearview mirror. He nearly drives off the road several times.
- Happens in a Judge Dee story. The judge's lieutenant is sent to interrogate a girl, who tells him to turn around while she's changing. He complies, and she turns around, clothes dropping to the floor. She then tells him he can turn around now, but he replies that the mirror in front of him does the job just fine. A Sexy Discretion Shot ensues.
- In the Xanth novel Demons Don't Dream, Nada Naga insists to Dug that he must not try to see her naked. When she changes in one scene, he attempts to sneak a peek at her anyway with his belt buckle, and the "computer game" that he's playing to connect him to the world of Xanth ends up booting him out because of it.
- Arrow: During the flashback in "Public Enemy", Mei happens to glance at Oliver's reflection as he is undressing in her room to take a shower. This reveals the incriminating tattoo on his back.
- Hollyoaks: After Newt accidentally soaks Theresa with a bucket of water, he offers her his jumper to wear. As she removes her wet top, she tells him to turn around, which he does, however watches her in a reflection on a TV. This is an early indicator of a later hook-up between the two characters.
- Law & Order: Criminal Intent:
- One killer was a voyeuristic doctor who strategically placed a stainless steel cabinet door in his office so he could watch his patients change in the reflection.
- In "Major Case", a Stalker with a Crush rescues the Victim of the Week from her abusive dealer. She asks to take a shower and he watches her reflection through the slightly ajar bathroom door as she undresses and gets in the shower.
- In Pretty Guardian Sailor Moon, Mamoru Chiba sees Usagi transform into Sailor Moon while watching Usagi's reflection in an amusement park mirror maze.
- Similar but not identical: In an episode of Three's Company, Jack & Chrissy are temporarily sharing the bedroom normally used by Chrissy & Janet, but Janet is afraid of a mouse in the room. Chrissy tells Jack to turn away so she can get into bed, so he turns and looks right at a mirror, which shows him Chrissy in her skimpy nightie.
- Played with in The Witcher (2019). Yennefer is about to undress for a bath and tells Geralt to turn around, only for Geralt's eyes to land on a conveniently-placed mirror... which Yennefer then tips over with magic.
Geralt: That's cheating.