I make him kiss the legs that will break his balls.
I just love to tease my slave and kick him hard in the balls, especially when his cock is so hard from my ass touches). But what I love even more is giving him strong kicks when he least expects it. Kicking him in the balls while he's staring at my ass is too funny)
I made a deal with him, if he can withstand a certain number of hard blows, and if after that his penis can become hard, then a sensual milking of a penis from me is waiting for him.)