And then they finally had to pair up, for those few exercises that they always did together. The last one would be the most interesting one and Sandra...wondered how Dina would react on it. She was sure that if she would have done this with a boy, he would have had real trouble with his one-eyed snake.The first thing they did, was locking their arms together while standing with their backs against each other. One of them had to bend forwards while holding the other one on their back. This arched. "God, it goes so deep!" Oh, baby! Oh, baby!" Jack panted, grimacing from the tight pinching of her ass on his prick. "I'm gonna shoot so deep into your ass it is gonna come right up out of your mouth!" Just don't do it yet, buddy!" Donny panted, grabbing and squeezing his sister's beautiful dangling tits and fucking into her cunt at the same time. "I want to enjoy this!"Shari dropped one hand between her thighs and started rubbing her flowing cunt rapidly. She couldn't believe how hot it made. “Are….are you alright?” she looked up at me with glassy eyes.“I’m fucking awesome.” Her speech wasn’t slurred like someone that was intoxicated but there was a kind of disconnect there.“Hey about we get you cleaned up, huh? Make you even prettier?” she looked like warmed over shit. Thankfully she nodded her head.Her body was still coated in all that cum and I didn’t want to get it all over my dress so I kind of guided her into a shower stall and when I was certain that she could stand upright. I finally admitted that I had been taking low doses of hormones since I was 13 to hold off puberty and it had actually worked. But let me warn any of you readers, that I shouldn't have done that. It was very dangerous and might not have worked; I should have talked to a doctor.By the time my parents got home 5 months later I was into a full B cup, a C cup for some styles! I had been living as a girl of 16 for all that time and had even petitioned the court for a legal name change, which was.