Growing need, yes. Jay's cock was almost painfully hard, and god, when Paul was fucking him like that.. He was going to come too soon if he wasn't careful, and he concentrated on holding back for Paul.
His body fought with him though, and he found himself still squirming, seeking more and more and more. He couldn't get enough of Paul inside him, and his whole body felt like it was singing with need and want. Teeth bit hard into his lip with the force of not crying out, and he could taste his own blood in his mouth, rich and coppery.
Almost there, Jay's mind took the place of his words, and his internal world became one of 'pleasepleaseplease'.