Inspired by the scene where Nile startles them awake and Nicky's got a gun in his hand while Joe is groggy and slow and sleepy. Joe is a slow waker and prefers a million hours of sleep. Long ago, they've worked out a consensual agreement that when Nicky is horny and Joe is sleepy, he can just go ahead and use Joe's body for pleasure without waiting for him to fully wake up.
Joe/Nicky, somnophilia