Sexilepcy
Similar to narcolepsy, Sexilepcy is when you get caught having sex, and the immediate reaction once you're caught is to fall asleep and play dead, regardless of what's happening around you.
Roger was balls deep in my asshole when my dad walked in. I've never seen someone's Sexilepcy kick in so hard in my entire life. He just passed out on my back, with his dick still in my ass. What a tool.