If this slave wants a chance to get fucked by my strap-on cock, he'll have to serve his cock and balls up on a platter for the most horrific CBT of his life and endure more pain than he's ever thought possible. Tied up and pulled tight, his swollen, aching nuts take my whip again and again, harder and harder with no relief until I move on to tormenting his now-useless dick.
My whips and cane leave his genitals black and blue, bruised, welted, blistered and mangled.