This time the sound is weaker and looser than the groan before it as he parts his lips against Neil's. This, at least, he doesn't feel any hesitation about, despite the twisted corner of his mouth. His teeth catch Neil's lower lip and he sucks gently before letting it slip free. Like it's a hint. A suggestion.

"That's it." His hips are rolling upward in a slow rhythm now, moving in time with Neil's hand. If he and Neil haven't done much of this lately, he's jerked off just as rarely, and it's not going to be long at all. "God... that's perfect."