[There is a brief flicker of doubt where he wonders if he demanded too much too soon. His eyes flick down to James, watching the other man carefully. That pressure on his hips doesn't feel like James is really trying to push him back. Peter eases back more all the same, his fingers turning a bit more gentle again in James's hair.

But then he's gripping the locks hard between his fingers and shoving himself in roughly again. This time he holds James there, forcing him to accept the full length in his throat. He does ease up, but only to slam his cock back down James's throat again]

How about this: if it gets too much for you, squeeze my ass twice. But I hope it doesn't. I'd like to fuck your mouth until I come down your throat.