Spock knows that Jim is aware of what exactly it does to him when he touches his ears like that, and it is almost certainly why he does it. He does not know what has come over him, really, why he is going against his better judgment in this, but he is. He's not so much in the mood to argue semantics anymore. In fact, he is suddenly of the opinion that there is far too much talking going on.

"You talk too much," he breathes and catches Kirk's mouth with his own and lets him in, lips parted and receptive, and anything but passive. His hands move to guide him as he moves his hips, but all too soon he grows impatient and he's tugging Kirk's uniform shirt up his torso so that he can touch bare skin.

Soon, the chair will be an insufficient location. Ideally a soft surface would be best, but Spock isn't entirely sure they can make it further than the floor.