Blowing The Straight Roommate

I catch my straight roommate Zack stroking at the computer again and he exclaims he's going to blow a big one. Zack moans and groans as he strokes his slippery cock and throws his head back as I start to touch his hard monster. When I start giving him a handjob, he warns that he's close. When I lean in to lick his throbbing cock he blows a huge nut in my mouth.