Hahaha oh my I have to tell a little tale here...
I was going at it with this chick and seriously, it was like rooting a pillow... or a sack of potatoes, use whatever analogy you want. Anyway in the end I just rolled off and said "You know, this reeeaaaly isn't working for me.... yeah. I'm going into my room now, k?"
We were roommates so it was kinda awkward after that.