Spock grabs one side of those gyrating hips and pins it down to the bed, hard. He's not moving. Not one inch. Not right now, at least. And, with that settled, Spock loosened his grip, allowing Jim to breathe regularly for three inhales. And then his hand tightens, stopping all oxygen flow completely. "Is this what you were fantasizing about?" he asks in a soft, tender voice completely at odds with the iron fist around Jim's throat.

"You enjoy this?" He reaches his other hand down, slipping to his pants and slowly undoing the fly on it. He doesn't push them down, then. Just slips his hand inside, cupping Jim's erection in his hand. Letting it warm beneath it. "I suppose this is all the evidence I need, is it not?" He looks back at Jim, gauging his oxygen level before giving him one last squeeze and then releasing.

Just a tease, then. Just a small tease of what was to come.

"On the bed. Hands over your head, wrists crossed."