It was an incredible sight. As Becky came again, she looked up at me from beneath my wife's swollen pussy. Her face was slick with my wife's cum.She l...oked me deep in the eyes, moved her mouth to one side, and simply said "Fuck her."I didn't hesitate. Kneeling behind my wife's gorgeous arse to fuck her from behind, which she loves, I felt Becky's hand grasp my rock hard cock. She guided it into her own mouth first, sucking hard, working her tongue around the rim until I thought she would make. We had been with each other several times since the first so I decided as she worked my virgin hole that I would try it as see if I liked it. When Christina gets her cock stretched out. She is as long as me. Not as thick but enough to let me know whose in charge. She then made me get on all fours. I went to get up on my arms and she said, "no you don't" She made me lay my head on the bed and I had my ass up in the air. Okay at this point I was feeling alittle vaunerable. I then felt for the. Almost all except calculus - or Mathematics as it was called here. With Mathematics, I was almost totally lost. It was painfully clear to me that there were several commonly used methods that I had no idea about. There would be no way that I would be able to close that gap during the classes, which meant that I needed help. Serious help. I felt that I needed to keep an eye on Linnea, but I also needed her help. Badly.I had one - or maybe two - advantages. First, I had some money. Some money I. Wash up in the room and I will see you in a sec” he said. He handed me a stipend patient’s gown and I figured he wanted me to change into that. I went into the wash basin behind the curtain, cleaned myself up and stripped down to my jockeys. I slipped into the clinical gown and tied the knot in the front. Doc asked me to stand on the height-weight machine facing him. As he was adjusting the machine to check my height my knot came undone and the gown now looked like a long front open coat. Doc’s.