guy 1: yo girl has a massive butt chin guy 2: yeah i know we have chin sex all the time and i cum up her nose
the act of inserting your penis into a girl's butt chin and sliding it up in down in between the crevices
"guy 1: yo girl has a massive butt chin guy 2: yeah i know we have chin sex all the time and i cum up her nose" What is the definition of "chin sex"?