My physical and psychological control over my subjects manhood escalates as I turn up the pain volume, resulting in him achieving an even larger and firmer erection. After years of systematic conditioning, my delicious pain is what he craves. It is the only sexual outlet I allow him.With each stinging slap from my whip, his cock comes to life. Harder and harder I strike, relentlessly, as it grows larger and larger. Until it appears ready to burst at the seams and explode. Ah, but that is a privilege I am not yet ready to allow him. I twist, pinch and choke his cock and ball sack, and I feel his member pulsating in my hand. A furious volley of slaps with my leather clad hand, and his cock is harder than he has ever experienced. My power over my slaves cock is absolute. As it should be.