It's very much working.

( Jim says, breathless, mouth dry, electricity zooming through his veins. Now that Spock seems to be very intentional, he's stopped trying to picture the most nonsexual things he can think of to hold himself back from a reaction. He lets the lust heat up his body, his cock starting to make its interest very known underneath his pants. Spock's touching him, still teasing.

Then he moans, and it sounds like a purr, like he wants this as much as Jim does, and Jim gasps. )

Oh my god.

( The kisses on his abs feel unbelievably good and he can't believe this is happening, that his very lustful and inappropriate fantasies are coming to fruition. Jim's fingers run through Spock's hair over and over, a caress, tightening slightly when his hands move to Jim's belt. )

You can't tell I'm enjoying myself?

( That's a tease, considering there is no question from the bulge in his pants that he is. But he has no trouble talking, since Spock's prompting him. If he wants communication he can get it. )

Have you sucked cock before, Spock?

( His other hand drops to caress the side of Spock's face, tracing fingers over his lips. His voice is a rasp somewhere between suggestive and demanding.)

Put your mouth on me.