"I'm gonna fuck your face," he started, leaning closer and licking a stripe up Billy's throat. From there he found his way to Billy's ear, tugging on the lobe with his teeth before murmuring, low and heated.

"I'm gonna lay you right out on the bed, open your mouth and suck me off until I'm hard and aching for you. Then I'm gonna feed you my cock until I see it bulging in your throat, feel you swallow around me. Bet you'll feel so good, your pretty little magic mouth all stretched around me. You'll feel so sweet, so greedy for me to come right down your throat. You want it, don't you? Wanna taste how good I am?" Probably best to pause there, breathe and take in Billy's state before telling him more.