The history of cinema is boys photographing girls.
The limit of the Willing Suspension of Disbelief for a given element is directly proportional to its degree of sexiness.
In other words, when things are sufficiently sexy, viewers will accept them, even when they are outright impossible, or just astronomically improbable.
Compare the Rule of Funny
and the Rule Of Cool
- Breast Expansion - In reality, breasts can't suddenly expand.
- Chain Mail Bikini - In reality, you should not fight in bikini-shaped armor, because it does not protect you.
- Clothing Damage - In reality, clothing does not degrade in a conveniently alluring fashion.
- Combat Stilettos - In reality, you cannot run and fight in stiletto heels.
- Custom Uniform of Sexy - In reality, each uniform is standard.
- Deus Sex Machina - In reality, sex is not magical.
- Exposed to the Elements - In reality, clothing inappropriate to the elements can prove harmful or fatal.
- Form-Fitting Wardrobe - In reality, a limit exists on how tight some clothing can be.
- Gainaxing - In reality, breasts do not bounce that much, especially if they're larger and heavier!
- Gendered Outfit - In reality, uniforms created for both genders consider practicality, rather than just showing as much skin as possible.
- Green-Skinned Space Babe - In reality, were aliens to exist, we (most likely) could not have sex with them.
- Hospital Hottie - In reality, hospital personnel dress for practicality.
- Hot Wind - In reality, wind does not appear just to make someone's hair and clothes move around seductively.
- Impossible Hourglass Figure - In reality, the human figure forms only a slight hourglass.
- Latex Space Suit - In reality, space suits are bulky to protect the wearer. And the closest experimental suits require the wearer to pack putty or fluid-filled sacs around anything that would otherwise stick out (like breasts and groins).
- Most Common Superpower - In reality, were superhero(in)es to exist, they would not all have large breasts.
- Naughty Nuns - In reality, nuns are more chaste than most people.
- Orgasmic Combat - In reality, fighting does not sound like sex.
- Spy Catsuit - In reality, people cannot wear tight zippered clothing while remaining mobile and stealthy.
- Stripperiffic - In reality, people cannot carry out jobs while wearing clothing unsuitable for the application.
- Suggestive Collision - In reality, when people collide, their body parts will not wind up under one another's clothes.
- Waif-Fu - In reality, svelte women do not hit that hard.
...but in fiction, we accept the alternative, because it's sexy.