"Ah-!" Caboose gasps as Kirk descends, a low moan mixed with a hint of a whimper rumbling out of his throat at the teeth and tongue and lips that graze against his nipple. Drawing a slow, stuttering breath, he cracks his eyes open to glance down at his lover, his dark eyes clouded with pleasure as he watches.

It takes him a few moments to realize that Kirk is speaking to him, lost as he is in the motion of their hips and the threat of teeth against the sensitive nub.

"Wha- uh... of course! Do- um... d-do you-" he blinks hard, lifting a hand to card through Kirk's hair and gently tilt his head up and away from his chest for a moment. It's too hard to think and speak clearly when he's so distracted. "Do you want me to get the ears too?"