Here is a couple's guide to 5 sex positions that will sooner lead to sprained muscles and torn ligaments than to orgasm. I mean what's more fun than adding some danger to sex...right? I'm not just talking about advanced sex positions.These sex moves are definitely not meant for drunk people, nor are they taught in sex books. Attempt these moves at your own risk. Feel free to use this on your next one night stand. Who knows, they might turn out to be marriage material.