She feels my knot as it starts to swell, the large bulb at the base of my cock starts to swell up as I lunged one last time into her, sinking that big... knot in her wet pussy. She feels it as I slip it past her entrance, as it locks her to me! She is tied to me and is loving it even though it is very uncomfortable and painful at first. My knot in her pussy is painful as I slam it into her. There she is, on her hands and knees on the floor, being fucked by me! Who would have ever thought she would. I knew that if I ditched the glasses, wore more revealing clothing, and actually started taking time off, that I would have no problem snagging a man. But, as usual, my drive for success kept me at work this late at night.I'm Dr. Mary McShane. I head Cybernetics Laboratory One in the tower headquarters of the Delta Corporation. For the last three years, my research team has experimented with cybernetics, particularly the interaction of the human brain with a cybernetic interface. Within the. Cindy got more aggressive and Lori started mewling. “Come on Sam, you and me, I need a good fuck.” Lilly took my hand and went to the couch and laid down, pulling me on top of her. Lilly spread her legs wide. “No preliminaries Sam ! Stick it in.” I obeyed and buried my raging hard-on into Lilly’s vagina. Lilly gasped and took it all in. I could feel Lilly’s cunt gripping my penis. On the floor Cindy was fucking Lori with her tongue. “Your learning fast Cindy, lick me baby,” Lori whispered. I. After wolfing down a breakfast sandwich and a cup of coffee, I announced that the boat would be leaving in ten minutes. “Grab your towels and sunglasses!” I shouted, as I headed out the door to get the boat ready. Once again, the conspiratorial look passed between them, and then Erica said, “We seem to be a little short of clean beach towels. Something got on the ones that we left drying on the deck…” “No problem,” I interrupted, “I’ve got some extras in my car. Meet me at the boat.” I had.