"U-uh?" Breathing. Jim manages to nod, though it's little more than a jerk of his chin. Spock's eyes are blown wide and Jim's are no better. The blue nearly chased from them entirely. Jim swallows and nods again. He tries to breathe deeper instead of the rabbit-quick damn near hyperventilating he'd been doing. It's grounding even if only a little.

Jim adjusts when Spock moves. He pulls back and slides a hand to the small of Jim's back--Jim arches it to better let him find him wherever he wants to touch. He's getting a workout like this but it's so fucking good. He even manages to shake out a breathless little chuckle and a cheeky quirk of a smile before Spock absolutely ruins him.

It shifts to a low noise of surprise to be pulled down the bed again only for Spock to punch a sharper moan out of Jim's mouth even he wasn't ready for. As every thrust jolts down his spine sharper than electricity. Intense pleasure, heat, and that fucking voice at the same time, still managing to be heard over Jim's cries. Jim's not sure how he doesn't white-out on the spot.

It still takes him a couple of gulped-down breaths to manage anything coherent. The first two times all he manages is to half sob, half moan in the space between them. His voice is breaking when he finally shudders out--

"D-don't stop--! Spock p-please--!"