It's the ultimate nightmare of any adult (and child)—walking in on parents having sex. Unfortunately, it happens. When it does, there's no telling what type of reaction mom, dad or kid will have, but it's always best to just forget it ever happened.
Of course, in some cases, it's not always that simple, as a few horror stories have shown that not all sex scenes involving parents are created equal, with some occurring at the worst possible times.
As a reminder to all you parents out there who might be too horny to do the simplest of tasks—like, you know, lock the damn door—here are some embarrassing instances when kids walked in on their parents being dirty, courtesy of the anonymous storytelling site, Whisper.