Hand-Cock Frotting

Your cock is being sandwiched between your belly and his hand and it feels soooo goooood~ But if you don't free yourself from this situation, your whole suit/undies will get soaked with pre~

You use his underwear or singlet for your advantage and push your hand down there, feeling his soft shaft growing and growing while you rub his cock against his tummy. His cock is sandwiched, can he really resist the feeling?