She turned into a bit of a tease. On the days I didn't lift weights, I would walk on the treadmills, it seemed elliptical machines messed with my bala...ce. The treadmills were lined up directly behind the ellipticals, and she made sure she would use the one directly in front of me. I soon found that standard underwear under those tight exercise pants were thongs. After we would get going, she would look back, giggle, and slide her pants down far enough to see her thong. She didn't realize it,. When I woke up the next day, I couldn't help but feel a little sad as I gazed over my much flatter tummy, knowing how much I would miss being so beautifully swollen.Having my pussy stretched out enough to shove a melon through was enough to kill my sex drive for a little while, but a few short weeks later I was healed up and horny as ever. As it turns out, a quickie in the library is just as dangerous as a gang bang in a locker room. I was only a week into my freshman year of college and I had. . She hadn't considered it until just now, but when she put her hand up above her eyes to feel the lump that had formed there, she was alarmed to notice that there was a fair amount of dried blood there, and the lump was very large indeed. Simply touching it made her vision blur and her head ache. She tried to shake off the disorienting sensations as she fumbled with her flares, thinking that if ever there was a time to use one, now was it. It took a surprising amount of effort to pull the cap. “What a good girl you were. I will reward you.” She squatted over the gaping mouth and parted the lips of her vagina. A heavy stream of sour urine squirted out and directly into the open hole. Submissive Rachel coughed but her throat was sore and dry. She swallowed the piss without objection.Dominant Rachel pulled her up into a sitting position. “Now the final lesson. When I am done with you, I am going to kill you”. She grabbed the end of the collar around submissive Rachel’s neck and pulled.