(Author's Note: Rewrote this idea for a spinoff to give Dave a counterpart.)
Dave watched in horror and shock as his chest expanded, straining his T-shirt. The T-shirt itself warped into a tight fitting top with a logo on it. He could see his hair, previously short, with a hairline that was starting to recede, start to flow in a wavy do around his shoulders. "What's happening to me?" he exclaimed, his voice changing pitch. He looked up at the woman....was he shrinking?
"You all right?" The woman said, concerned with the expression on his face. She was a muscular sort, with short cropped hair. "I...didn't mean anything. I was just kidding..." She put a hand on his shoulder.
Dave felt the blood rushing to his face. He moved out of range of the hand, and noticed himself in the mirror. He was...an Ice Girl. Or more accurately, an Ice Boy. He was still certain he was a boy. He ran out of the bathroom in a panic, uncertain of where to go or what to do. As he did, he could feel his body moving in uncomfortable and unfamiliar new ways.
Running down the concourse, feeling his newly formed breasts being held in place by a sports bra, he spotted someone dressed in a uniform similar to his. "You've got to help me," he called in a softer version of the voice he was familiar with. But It wasn't the same uniform. He could somehow tell this was a woman. It was an actual Ice Girl, not the male version he seemed to be becoming. She was standing a few feet away in front of a small podium with 8x10 photos and markers.
"What are you doing? That top is way too short, and so is that skirt..." she started. "We're trying to be taken seriously around here, not..." Her voice grew deeper with each word she spoke.
"I'm serious, I really need help," Dave interrupted, a bit more shrilly than he'd like. He moved closer, trying to emphasize the situation and looked her in the eye. "I'm not supposed to..." he trailed off as he noticed her eye level rising. He'd been at the height of her chin, but he suddenly had to adjust his head to look up even more. Was he shrinking again?
"What's wrong, honey?" the woman said, Dave's face coming quickly into line with the woman's breasts. He could see her low-cut top start to rise and reform, going from a deep V-neck to a much higher crew neck.
"Umm..." he stumbled, looking down and watching the woman's skirt starting to grow longer, beginning to cover up a set of increasingly muscular-looking legs. Dave looked back up again...and up, feeling tiny compared to this giant of a woman. He saw her eyes looking down at him...but not at his face, a bit lower. He'd admired breasts before this happened...but was uncomfortable to suddenly be on the receiving end.
Meanwhile, the woman was a bit confused....she'd never had a lesbian thought in her life....and suddenly...she was being aroused by breasts... "You don't see...anything wrong?" Dave blurted out.
"You're the one that's panicking...."
Dave made a frustrated noise. "Seriously?" He said, his voice raising a bit higher than it had already gone up. "How tall are you all of the sudden?"
The woman seemed to pause. She took Dave's arm, and suddenly noticed the arm taking it was thicker than before, and the nails were not manicured. She looked particularly shocked, and squeezed his arm, pulling him toward the bathrooms he'd just run out of.
"What?" Dave said, utterly confused and bewildered.
"Mirror," she growled.