Just as I am guiding his cock back into my pussy D stops and presses it against my tight asshole."You passed out on me last night and I never got to s...mple your ass, but we are going to take care of that right now"There is no way I would stop him, I want his cock in me no matter where it is. I am thankful I am on top so I can at least control the movements. I position myself above his hard tool and slowly begin to lower my weight on his rock hard shaft. I moan from pleasure and pain as I slowly. For all intents and purposes it is a single point—approaching a complex infinity. Sari Stone: I don’t know. It sounds like mumbo jumbo. Faustus Mortal: So every point is in the absolute center of an expanding sphere—point being proton. Sari Stone: Not electron or neutron? Faustus Mortal: No proton. Sari Stone: Now I am confused. How does this happen? Faustus Mortal: Inversion of the spheres. Sari Stone: Sure, why not? No wonder my topology teacher said that you are a crackpot. Faustus. Athletic and sexy and about my age. He was good looking too. I knew Sir had had a crush on her for several years and always enjoyed when she came up with her parents. I had filed that away, just in case, and went out of my way to strike up a friendship. It wasn’t difficult to do. In a matter of days we’d gotten into the habit of chatting over the fence between the houses, each of us standing on a chair. I think we really cemented our relationship the first night our games spilled out into. No matter what Robbie wanted her to do, she would do it to win him. This was her mantra, her constant thought, while he continued pushing his thing into her rectum. And it hurt more, the further in. She'd have a hard time sitting in the seat beside him as he drove her home. She'd walk funny for a few days. But it was worth it because she could outdo them all, and Robbie would be her husband."You're so tight, Ellie!" Robbie exclaimed once his hips met her buttocks. "This is wonderful!"Ellie.