Why do anything if you are unskilled at it? Spock could never abide by failing at his goals. So naturally he had to sink it in one.

With that out of the way he presses into the kiss eagerly, moaning low and wanting into jim's mouth. When they part Spock looks up at him, pupils blown, and he prepares to shoot a retort to the teasing but instead just shivers with a frankly embarrassing little sound when Jim starts to move his hips. "That is—what I mean," he manages after a moment even as his hips buck slightly, "m—much more testing is required before we are able to come to a satisfactory conclusion."

The next rocking movement slides along his slit like before, but with how it has begun to eagerly part just a little to allow for his lok to begin to emerge, the slick glide is that much more intense for how it grinds along that brand new space and he gasps, one hand clinging to Jim's nape as his back arches, any transference that he fails to keep locked down an absolute mess of affection and desire. "Jim—"