You fuck him....

With **** you pull Lucas off of your cock with an audible POP. "Why did you stop me?" He asks, looking up at you with hurt in his eyes. "Well, I can cum in your mouth anytime I want, but right now, I want your ass, BEND OVER!"

With a giggle Lucas turns around and bends over exposing his peachy ass. After going into your trouser pocket and pulling out some lube and a couple of condoms, you start to prepare his tight ass for penetration. Lucas groans as he feels the cool lube start to drizzle onto his butthole.

After making sure Lucas's ass was well lubed, you put on the condom and gently started to push into his ass. "OOOHHHH!" Lucas groans as the head of your big cock pops into Lucas's butt. You just let your cock rest in his ass so you can get used to the tightness.