to slutkate :Much harder of course, the boobs may always stay BRA-LESS, bouncing freely in quite every circumstances, even to jump, run, or play volley-ball!
I regularly fuck this woman that wants me to bite her long, sensitive nipples- hard! To the point it leaves marks. She really gets off on that feeling, but it has to hurt. I find it strange, but it gets her so excited that I oblige.