“Halt pumping and withdraw,” Mistress Lea suddenly called, and I nearly wept in disappointment and frustration as my wonderful fulfillment suddenly stopped and pulled out of me. “Well, Slut-boy, you were certainly made for this place,” Mistress smirked. “Time to move up a size.” Blinking my eyes clear, I watched on the screen in front of me as the six-inch c**k that had given me such pleasure was removed from the armature and replaced with one eight inches long and a half-inch thicker. Mistress Lea pressed the head of it into my now desperately hungry hole and called out, “Resume pumping, speed level three.” Right away that much larger c**k thrust into me, bringing a sudden pained squeal from my drooling mouth. This one hurt, pounding into me like that, so much deeper, so much more in