Her feet dangle down and her heels knock against my bum with every movement. The extra sensation is a delightful surprise. She moans louder, her a****... instincts unearthed.It is at this precise moment that I grab her throat with one hand. Careful at first to gauge her reaction. Her closed eyes widen in alarm, then she registers what is happening, smiles and mouths the words “do it”.I apply a little pressure and squeeze her throat. Release and repeat, holding the choke longer each time.The sweat. " "Those would be perfect" said Vicky. Theyhad me sit in a chair that reclined. Then they fastened a strap aroundeach of my wrists and ankles that held me secure to the chair. "This isso you don't flinch and hurt yourself" said Vicky. "But I'm not sure Iwant to do this" I began to protest. "Oh nonsense" said my Aunt. "Ifyou want to be a girl you have to make a few changes."Vicky had me tilt my head to one side as she used some sort of gun andpierced my ear lobe. It stung and I began to. Marilyn is petite and i moved down to her crotch and as i got close i could smell the scent of her excited cunt already dripping and wet [like her daughter]. I spread her pussy lips and licked her inner folds in slow motions tasting her strong womanly scent as her juices spread over her cunt my face and even my nose. She pulled her legs up in the air and grabbed her legs behind the knees and spread herself for me. I got my tongue inside her canal as her well used but tight hole open for me to. I'd studied hard before I joined my course, and I could have done the experiments with my eyes shut.Hannah (that was her name) carried on oblivious. Now I'd started to look at her, I started to notice her body. She wasn't slim, but she was the right side of voluptuous. Her breasts made a nice rounded shape under the lab coat and, when she turned round, I could see how her rear neatly pushed out the white cotton. As always, when seeing someone attractive, my thoughts turned to lust and my body.