Finally, Lily got behind me and jerked me slowly. The feeling of her tits against my back and being in her control was too much and I shot my load. I ...ouldn't believe how much I still had in the tank. Lily seemed so content, as if she lived to make me cum.That night we had slept in separate beds, afraid mom and dad might come in through the adjoining room door and catch us in bed together in the morning. I was secretly relieved as it gave my body a chance to recuperate. I had a feeling today. ”That boggled my mind.I stood up. My legs gave out, and I would have fallen down the diaz if Mistress hadn’t caught me.“Let’s go get you some exercise.”We walked out of the room for the first time, to an adjoining room full of exercise equipment.“You are to get that fat off your body. By the time your training is over, you will be lean lithe and real sexual athlete.”I had never thought of myself as a particularly sexual person, and I told captor as much.She laughed, “You are already a sexual. I gave up all resistance and began to involutarily rock my hips, trying to fuck the hand that was wrapped around the base of my rod. Regardless of her comment on my size, the thought of her own mother suggesting that I fuck Tanya's ass was exiting beyond words. I shoved my tongue back in her ass and began to probe it deeply. I felt like my dick was going to explode from sheer internal pressure. I jammed my tongue up into her ass, trying to fuck her with it like I would with my dick."Ooooh .... She was soon riding me with complete abandonment, moaning loudly. After a while Karen got tired, and I said I would take over. I bent Karen over on all fours. I thought I would tease her a bit, and lined my cock up with her arse hole and slowly applied a tiny bit of pressure. "please don't" she pleaded" I am not ready to try that". I told her I was only teasing and slid my cock into her pussy. I slowly started to pound her hard and fast and deep. I fucked Karen hard and fast doggy, she started.