Let's play a little game. I want you to jerk your cock off for me, but only how I tell you to. There are some rules. You are to stroke at the same speed I bounce my tits. When I pull my nipples, you are to give the head of your cock a little flick. There are a few more rules, but I'm sure you'll pick them up quickly if you want to cum for me. Now watch my lovely size C's, and get that cock ready to cum all over them.