The language of fucking with abandon is fairly universal.

With one hand buried in his hair, he slides his other hand down over his stomach, lower and lower until he wraps his fingers around his cock. He begins to stroke himself in time with Jay's thrusts, and it isn't long before he's moaning out obscenities with a delirious smile on his lips, getting himself off and getting Jay off in the process, delighting in the fact that he has such a captive audience of one.