I was all but truly mounted on her. After only about two minutes of the extreme pleasure/pain of my anal fucking Carla screamed- “I’m going to cu...!!!!! Oh gawd! I’m gonna-“ then she went rigid momentarily and then began to pulse. I felt her ass squeeze my cock. I waited until the third contraction and then I quickly pulled out of her, standing up in the process. Her upper torso collapsed to the bed and her ass remained exposed and high, pulsing in orgasm. I smoothly lowered myself to her. There was another girl from school there, as well. Her name was Michelle. I retrieved my bag, and we all met on the range. Tim hit a second bucket of balls, and Michelle took a few from Carrie and me, so that we all finished around the same time.Carrie had figured it all out how we'd play together. She suggested teams since Michelle and Tim hadn't played in a while.To clarify, I asked, "Guys versus girls or co-ed? Best ball or best score? I'll beat you either way."Carrie said, "I'll ride with. Let you know how many times he's fucked me!" She laughed as I went down the stairs. "Any no wanking off or else!" She added giggling!The morning at work was intolerable! I couldn't concentrate! I had a near perminant erection!At midday a text arrived on my phone! "Of for an afternoon of unbridled rutting with Mr Big Cock! X" It read! It was all I could do to stop myself rushing to the toilets for a walk right then!The afternoon began to drag on.3pm and my phone buzzed announcing the arrival of. ‘You’re taking to the training very well, so I’ll let you call me ‘Miss F_.” She put her right hand out over my crotch, grabbed my sack firmly, and started manipulating my balls again. It didn’t quite hurt, but it was uncomfortable enough to make me wince. ‘Your testes appear to be normal in size. I can’t check your prostate here, so we’ll leave that for later.’ I didn’t even know what a prostate was. ‘Assuming it’s normal, you should be able to produce normal amounts of sperm and semen..