Buttering Up

When a man Cums before sexual intercourse and smeres it all around his dick, using it as natural lube, and is used by men who either don't like the person they are having sex with, or just wants a baby.

*Dude one comes into a room where dude two is mastuebating*
Dude one:bro wtf
Dude two:yoo I'm just "Buttering up" before sex
Dude one: ok. Nice cock doe