The moment Weiss' finger pressed down on the button, she froze in place, all colour draining from her face. Something was wrong, Something was deathly wrong. Her body refusing to move, her eyes slowly drifted down, gazing down at her body. Nothing looked out of place, her outfit hiding everything, but she could definitely feel it. Something underneath her skirt felt very wrong. As if on auto pilot, her free hand slowly drifted down towards her crotch, but the moment it reached its destination, it recoiled back up to her chest, her pale face turning beet red.
Weiss was close to hyperventilating. "This isn't possible. This isn't possible," she whispered to herself, continuing to glare at her crotch. Against all logic and common sense, the remote worked, and she was suddenly deeply regretting not paying attention to who she was targeting, or what she was swapping. "I... I have a..." She couldn't even bring herself to say it. She couldn't be completely certain without properly inspecting it in private, but as far as she could tell, nestled between her legs, straining against her panties, was a fully functioning set of male genitalia.
Pulling her eyes away from where her new equipment sat, Weiss looked over in the direction she'd pointed the remote, scanning the crowd. There were several men within the group she'd pointed the remote at, and none of them seemed to be acting out of the ordinary. It was just as the manual had described. Despite the fact that, presumably, one of them was walking around with Weiss' vagina between their legs, they all continued to go about their business as normal as if nothing had changed. On one hand, that was great; the remote worked as advertised, no matter how many rules of reality it was breaking, and no one would be able to call her out on what was being done. On the other hand, though, this left her completely unable to tell who it was she'd swapped with.
The shock had worn off somewhat, but now the panic was well and truly setting in. She stood with her legs a little further apart than usual, hoping to stop her new parts from pressing against her legs, as she scanned the crowd, searching for some way to tell who it was that was walking off with her parts. This was a completely nonsensical scenario that by all means should have been impossible, but thanks to the remote, it was happening; she had literally lost her vagina. Unfortunately, from this distance, there was no real way to tell which of the men lacked a bulge in their pants, and getting closer would give some of them time to leave. If she targeted another man in the crowd, she'd just end up with a penis all over again, only someone else's this time. There had to be something she could do, surely. She couldn't just be stuck like this. There were other girls around, maybe she could swap genitals with them. It'd give her the proper parts downstairs, even if it wasn't really her's, but was it truly right to force one of the other girls to have a penis for the rest of their life, even if they didn't realise anything was wrong? Perhaps she should simply accept her fate. She had messed around with such advanced technology without taking it seriously, maybe this was just the price she had to pay for it.
Of course, if Weiss hadn't been in so much of a panic over the new package in her panties, perhaps she'd have remembered that the remote had an undo button for situations such as these.