This time it's Dmitri's turn to groan, cock hardening obligingly under the friction as Billy grinds against him, finding a pace and rhythm that quickly has him cursing the layer of fabric between them. He bucks up against the younger man, partly to relieve some of the tension building and partly yo get him dislodged enough to tug his underwear down, abandoning them in the tub since he has far more important things to worry about.

"Greedy little puppy," he chuckles, ducking his head to suck on his other nipple, closing his teeth around it gently and rolling it along his tongue as his free hand slides around to cup Billy's ass firmly, squeezing in promise before sliding a finger between his cheeks, probing at first.