Love the idea he has "a task at mouth". Anything like that to distact him sounds good. The fucking machine in use in his ass would be good, not get in the way of anything and give more likelyhood of distraction. I like the idea of the cock rings around the floor near the keys. Maybe if he catches a ring rather than the key he get's ?? perhps an increase in the speed at his ass? He would obviously have to be made to bend at the waist to fish for the key rather than slide to a kneeling position. This would work well with the ball stretching and give a different feel to his rear end too. He's going to cross me off his Christmas card list!