I love to get a guy excited. Especially when I am with him and can see the results of lust. When a guy get so hard his cock is like throbbing. You push it down and it jumps back up. The pre-cum is flowing. Grinding is crazy because no matter what you do his cock has a mind of it’s own. When a guy gets that excited it’s almost guaranteed your going to have him slip. And when he does it’s hard to stifle a gasp. Definitely makes grinding a whole new experience when his cock has no give. Sometimes when he gets close I’ll squeeze the base or the head to stop him from cumming. Can usually pull that off a time or two before he will explode. I wouldn’t recommend that if he is inside you though. Squeezing him off at the base when he’s past the point of no return does NOT work. I got a load once that way. Glad I was on the pill at that time. Anyway I love to watch a guy walk when he is throbbing hard. It’s comical but cute in a sexy way. Make sense? Hard cock is truly a magnificent thing.