Spock tried to keep himself calm. Slow, steady breaths, eyes closed as he tried to concentrate on the feel of each bead being pressed in. Indeed, as he took in the third bead, he drew in a shaky breath, shifted--and let out a soft sound, becoming aware all at once of how they filled him, and by how much.

"...Jim." Uncertain about how much he could take, especially when he was already hot and sore.