The sight before him is a lot to take in, but Luke does remember, having been terribly focused on it at the time and having, perhaps, done a little reading in the interim.

It's almost too much, the notion that this just happens, but he takes the oil and sets it aside for a moment to run both hands over Bull's back, down to the globes of his ass, caressing and testing for response. This isn't just about him, after all.