Pound Buddy
Friends that have extreme sexual tension and are "just friends" in-front of there friends, but have mind blowing, push you up against the wall, pound you from behind sex.
Mandy: I heard some sexcapades going on in your room last night and I know your not dating anyone, so who is your pound buddy?
Lisa: ummm...just a friend :-)
Lisa: ummm...just a friend :-)