Shortly after you'd finished changing the Foot Locker, a college-aged couple came walking up towards it. Joe was a skinny guy, more than a little nerdy, but good-looking. He wasn't much into sports himself, but his girlfriend Kate was on the university softball team and was here to buy some new shoes and he'd decided to tag along; they might grab some dinner together when they were done.
"Hey," Joe said as they approached the store, "don't you think this place looks a little different?" All the advertising in the windows had changed so that it only showed women, and from what he could tell, it looked like only women were shopping inside. And was it just his imagination, or were all the lights pink?
Kate shrugged. "Yeah, you're right," she said. "Probably just a promotion or something. Maybe they're having a sale on women's shoes? That'd be sweet! Come on!" She grabbed Joe's arm and pulled him into the store, both of them passing under the pink lights as they entered. And as they did so, something changed.
The pink setting of the original sex changed flashlight merely turned whoever or whatever it showed on female, or at least more feminine. The lights in the Foot Locker, on the other hand, were more specific. The transformed store, after all, now sold shoes and sportswear aimed and female athletes, and so anyone its pink lights showed on would be transformed to better fit that qualification.
Joe blinked and looked down at himself. Moments ago, he could have sworn he was a skinny nerd in ordinary clothes; now he was wearing a pair of soccer shorts that clung tightly to his hips and rounded ass, leaving his legs, which were long, shapely, and smooth, bare down to his shoes and socks. His shirt was a red soccer jersey that was pulled tight by a pair of breasts that were generously sized, though not so much they'd get in the way of running and playing the game; beneath the jersey he was wearing a sports bra and his stomach had become taught and toned. His brown hair had lengthened considerably and was now smooth and shiny, pulled back away from his face into a pony tail. Though he couldn't see his face, he knew it too had changed, its features becoming smoother and finer and completely free of hair.
Feeling disoriented and unable to process why, Joe looked around and saw Kate looking at him with a concerned expression. He'd always thought she'd been attractive, but had she always been so, well, hot? Was she curvier than she'd been before, had her blonde pony tail always been so long and shiny, and had her shirt always been short enough for a thin sliver of her midriff to show? Joe couldn't remember. "Are you all right, sweetie?" Kate asked.
Joe blinked again, and then she smiled. "Never better," she said and pecked her girlfriend lightly on the lips. She didn't know what she'd been so confused about earlier; she was still Jessie, a knockout college soccer player who also happened to be top of her class, and she was still proud to be dating the absolutely hottest member of the softball team. She looped her arm through Kate's and leaned in close. "Let's get shopping," she said to her girlfriend, and together the two girls headed into the store - both of them having completely forgotten that one had been a guy less than five minutes ago.
You watched the changes happen and smiled; they were such a better couple now. What to change next?