I would love to be in a circle jerk / frotting session with 3 or 4 guys, all wearing white briefs. We watch each other intensely and feel each other's packages through the material until damp spots start to form. Then, we pair off and grind against each other, hard cocks rubbing against hard cocks through the material. As it progresses, one of the other couples stands before the rest of us, and one of the guys takes his hard cock out of his fly and inserts it into the briefs of the other guy as the rest of us direct them and coach them to show off for us. Eventually, cum flies everywhere, soaking our briefs -- and we all exchange with another person and wear their cum-soaked briefs for the rest of the evening.