I'm pretty sure Mark never had any basic training like this in the military!

Mark already showed us how he put his mountain of red-head muscle to work fucking Travis. Now it was time to see if Mark could take it, or if it would break him. To conquer the mountain, I knew I needed to pair him up with the one instructor who could drill him in all the right holes – Cain.

Mark was clearly nervous. “It'll be my first time bottoming, so let's see how it goes,” he said. He promised to do his best to take Cain's big dick and enthusiastic fucking. Cain pulls him in for a deep, passionate kiss and Mark responds.