A guy was sent to prison and placed in a cell with a huge, burly guy.

When lights-out occurred, the big guy got out of his bottom bunk and said to this guy,

"We're going to have sex! You want to be the Mommy or the Daddy?"

A very terrified guy replied,

"Uh, well, I guess I'll be the Daddy."

Then the burley guy said,

"OK then, get down here and suck your Mamma's dick!"