Leaning on his elbows, Caboose arches his back a little to lean closer to Kirk to present his neck for the collar. The jingle of the bell as it's settled around his through brings a fond smile to his lips, the sound reminding him of all of the other fun nights they had spent together. The sudden breeze to his ear makes him jump out of the memory, the chill snaking it's way down his spine and making him shiver. It was far from unpleasant, but he might have squeaked at the unexpectedness of it.

"Wha- hey! Jiiiiim, that's cheating!" Caboose half pouts, pushing himself up onto the mattress proper but his expression quickly gives way to a grin when he has settled comfortably hovering over Kirk. A hand propped up by each of Kirk's shoulders, Caboose dips his head to press a kiss to his lover's collarbone, nuzzling the skin there as he murmurs, "And besides, it's my turn."