Nan and I hadn't fucked in the weight room in over 2 years. I lowered my head down and sniffed the spot on the couch. Without a doubt, that was the sm...ll of dried sex juices... and they weren't all that old! I would have certainly noticed them during last weekends workout.As I started my routine I looked around the room with a spy's eyes. I knew that it would be impossible to place the camera discreetly. I was looking in the full-length closet door mirrors at my 30ish, tan, and bulked body semi. We went through our warm-up drills and did our laps. Going with the wind I felt like there was a gentle hand pushing me along, but running against the wind was a struggle. Warming up wasn't too bad, but I knew that as the game progressed, I would feel like I was trying to push my way through cotton candy moving in that direction. Another niggling worry was the way the wind seemed to rob me of my breath when I was running into it. Sometimes it seemed like I couldn't fill my lungs, and I was. He is never there on Saturdays. We recline facing each other. Our towels d****d to the sides and our junk in full view of each other. We lazily masturbate. The professor jokingly asks if my ass is still full of his cum from the previous night. After 10 minutes or so of slow masturbating the professor tells me that he is still horny and asks if I would be interested in going back to his place for another round of sex. I sit there considering his offer. He adds that he would like me to. He next proceeded to slide down and removed my sweatpants and undies. He immediately began licking and fingering my pussy. Suddenly I had completely forgot of my husband until I was told I was possibly moaning a bit too loud!With that he climbed up and slowly slid his cock into my pussy, slowly and gently he rocked back and forth and I came almost instantly. He continued fucking me until I came once again. I have multiple orgasms nearly every time now which was something that I never did or.