Rig gets cold at night

It was going to get colder, eventually cold enough for Buck to want to put some clothes on. Being allowed to walk around naked was one of the things Buck liked about the rig — he was a hefty lad who liked to let his bits hang free when he could — so he was gonna lay here until he woke up cold. Then he’d put some night clothes on and get under a blanket, and then Lem’s body curled up next to him like an elderly cat would feel nice.
“Psst, hey Buck,” Lem said softly, cooing, trying not to wake Buck up all the way. He gently poked him with one finger. “Can you roll ovuh?”
Buck grunted sleepily.
Lem poked Buck’s hairy, tattooed bicep with a finger again. “Roll ovuh for a sec. I gotta reach somethin’.” They did often have to move each other in order to reach something or in order to get out of the dead-end and head out to the bathroom, stuff like that.
So Buck did roll over. “Huh? Why?” Buck murmured, still half-asleep. He sprawled out on his belly.
“So I can attempt at’cha,” Lem said softly, kindly. Buck’s ass was bare and thick like a pleasantly fat female, but it was too hairy to be really enticing. Lem was hard enough not to care. He sat up and mounted Buck from behind. He got a massive fleshy-thick backside. Lotta meat in those buttcheeks to spread apart. Lem gotta use all his fingers to spread them. “Ssssh, don’t move, Buckums. I’mma get up ya guts.”
He got more lotion out and smeared it over his dick. Lem spread Buck’s hairy asscheeks with one hand, then used his other to guide his dong into the hole. He moved slow to avoid waking Buck up.

From Buck the Roughneck