I promise to roll onto my back to show you my boobs if you manage to get fully - and I mean one HUNDRED percent - soft for me, and then hard again.
But there's a catch - for every 30 seconds that pass before you get hard again, you must shove an ice cube up your butt. Even if it makes it more difficult to control your cock, or if it slows you down to put the cubes in your ass, you MUST obey me.
Once you have managed to get your cock hard and soft again, keep the ice cubes in your butt and continue.