Jon watched as before his very eyes, the exact copy of what he had once looked like started changing its shape.
In the super-manly body he towered over his old 5'11'' frame but that dominance grew even more as he saw it shrink a couple of inches down to 5'9''or 5'8''. It was very tall for a girl but Jon knew all the women in his family were rather tall so it did make sense.
That wasn't the end of shrinking though. He watched as Sarah in the body which resembled his old one less and less with each second continued loosing mass. She got thinner and thinner, her limbs more and more slender while gaining the softness of a little under-skin fat over even less of muscle. One of Sarah's shoulders popped out Jon's old t-shirt's neck as he watched his old torso get slimmer and slimmer. Sarah's chest must have been half it's width now and Jon couldn't imagine how narrow her waist had become under that shirt. Her hips weren't much wider.
Jon felt his pants getting uncomfortably tight as his penis stirred when he noticed his old body's nipples pushing against the fabric of his old clothes. The nipples seemed very poky but the beasts behind them didn't seem like much, perhaps of how baggy the shirt containing them was.
He knew he would hate every ounce of then anyway, once he's forced back to his, now changed body.
Where Jon's body once stood, now was a pretty, very willowy young woman.
"No, not pretty. Fucking gorgeous." Jon thought.
The body Sarah was in, it's lack of curves definitely didn't match her old femininity. But her sheer beauty certainly made up for it.
Jon thought that her face could model for any big makeup brand, even though it wore no makeup now. Sarah's eyes were large, almond shaped and deep green. Her nose small and subtle, her lips while not fat, still looking extremely soft, supple and permanently bent in a little smile. While Jon watched the body change he didn't realise Sarah's hair grew straight down to her waist and turned copper red.
As a cherry on top of her transformation a dusting of freckles appeared down on her nose, cheeks and on the shoulder sexily poking out of the neck of Jon's t-shirt.
"This feels more like it!" said Sarah looking at her delicate slender hands. "I'm going to miss it once I have to surrender it to you. But if I have to suffer in that overly manly body you made for me so will you in the one I make for you. I wish that once we swap bodies back, the body you will inhabit will start getting even more feminine but also just plain cute. I wish you'll get smaller and more delicate. I wish you'll get curvier and curvier where it matters while staying petite overall. But most importantly I wish you'll forever remember that really you are a guy and that you'll never get used to the body of a sex kitten you will inevitably turn into!"
