13 Steamiest Incestuous Relationships In Film

In Oldboy, an awesome Korean film that any action/film fan should see, the main character Dae-Su is kidnapped and held prisoner for 15 years in a hotel room. He is never told why he is being held and is released with no explanation.

Upon his release he meets a young chef named Mi-Do who takes him in and takes care of him. Over time the two fall in love as Dae-Su also tracks down the people responsible for his abduction. When he finally catches up to his abductors, Dae-Su is shocked to learn it was all a revenge scheme by Woo Jin, a man Dae-Su had shamed years earlier.

[ACTUAL Oldboy ending/twist SPOILER ALERT, because this is actually a damned good movie]

Dae-Su had revealed Woo Jin's incestuous relationship with his sister, causing her to kill herself. In order to seek revenge Woo Jin kidnapped Dae-Su, but the kidnapping wasn't the revenge. The vengeance plot was in fact pointing Dae Su towards Mi-do upon his release, because Mi-Do was his daughter. Dun Dun Dun! Everyone still with me?

Now here's the worst part, Dae-Su cuts out his own tongue, swears to keep it a secret and has Woo Jin erase his memory that he ever found out Mi-Do is his daughter.

He returns to her and they live creepily ever after.

Before playing a math genius in Lost, Jeremy Davies starred in David O. Russel's Sundance break-out film "Spanking the Monkey" as Raymond. When forced to care for his mother after an accident, Raymond loses both his internship and his girlfriend. With no other emotional outlet, he starts getting closer to his mother.

What ends up happening, well, you know what list you're reading. Yes, they do it. The trailer for the film is to the left and teaches you that (well, re-affirms, I really, really hope that you already knew this) you should never consider your own mom a MILF.

Most of the items on this list are actors PRETENDING to be related in film roles, so for the BONUS item, we're switching it around a bit.

In Kickboxing Academy it's the other way around, here's the story:

When she was 15, Grey's Anatomy star Chyler Leigh starred in this movie with her brother. They must have played siblings or best friends in the movie right? WRONG! They played a couple, a couple that gets some serious face time. To the left is a hilarious comedy video breaking down the situation, which is essentially that they were both struggling actors, they got the parts separately from a sadistic casting director and decided to take the parts because, hey, it's hard to make it in Hollywood.

Not sure if a movie called "Kickboxing Academy" would be "worth it" to make out for minutes on end with your own sister, but hey, to each their own.

At least they weren't having sex like all the sick, fictional bastards on this list.