Mary slid the medallion's chain around her neck. The silver felt cold against her skin. She rubbed her fingers against the fabric of the shirt, feeling the soft texture of the textile between her fingers. The shirt had some random comic book characters emblazoned across the front; Mary figured it was some kind of merchandise Aisha had picked up somewhere.
"Whew. I uh..." Mary lifted the shirt up, looking it up and down. "I swear I'm excited to try this thing for myself, but taking in the reality of all this... it's nerve-racking."
Aisha had known her friend long enough to know what was coming next.
"...which just makes it so much more awesome!" Mary continued, a huge grin spreading across her freckled face.
Aisha averted her eyes out of courtesy as Mary pulled her own shirt off, wasting no time before gripping Aisha's t-shirt in both hands and pulling it over her head. She tugged the medallion out from underneath and let it rest on the shirt, waiting. Suddenly her hand shot up to touch the chain around her neck.
"Something wrong?"
"Nope, just felt a bit warm for a sec there. See anything?" Mary investigated herself for a few moments. As soon as she was about to call bust, Aisha reached out and grabbed her arm, pulling the sleeve up. "Hey, what're you-" She fell silent, watching a creamy, almond color flow over her previously tan skin. Her toned arms smoothed themselves limber, then downright thin right before her eyes. She felt her back pop, gaining an extra inch, though still not quite as tall as her friend. For a moment she felt like she was sucking in her belly until she noticed that her waist had thinned out considerably. In a little less than five minutes, Mary's figure under the shirt exactly matched Aisha's.
There was almost a full minute of silence as both girls looked around Mary's body. The change in skin color had stopped around her wrists, neck, and hips, leaving her hands, face, and legs the same as they were before. Mary was pleased to find that her breasts at least hadn't shrunk to match Aisha's. Still hale and hearty in that department- probably because of the bra.
Aisha was paralyzed with shock. She had managed to get used to the idea that her breasts had grown and diminished, but to actually watch it happen again- especially on her best friend- was a whole new experience. She had changed right in front of her eyes! It was so gradual it was almost hard to tell, but there was definitely a difference.
"Welp." Mary leaned on the wall, running her hands down her waist. "This is fuckin' crazy, Aisha."