Before she could spend much time considering the enhanced strain on her bra, the sound of heavy footsteps approaching from the back drew Emma's attention. Instantly a hand reached out, covering Millie's mouth, and she tried not to think about how her bride-to-be's lips felt fuller than usual as she pulled them both down to hide behind a shelf. Just in the nick of time, too, as Adie and her four giggling tag-alongs emerged from the stockroom, their arms filled with various phallic-looking magical artifacts. Probably the 'toys' that the formerly-ancient witch had mentioned, tools to be used for making more people like them.
The four bimbos hadn't seen their visitors, but a major clue to their presence was immediately apparent in the form of Emma's barricade. Niamh and the other two girls just stared at it, confused, but Adie seemed to be just a bit quicker on the uptake. "Like, who did this? That's so meaaaaaaaan!" She whined as she dropped the artifacts she was carrying and started tugging uselessly at the barricade, not quite being able to figure out how to actually leverage things out of the way. It'd take her a while to get through, but in the meantime, her airhead followers were already back to wandering around while touching themselves and giggling.
Peeking out just enough to assess the situation, Emma mulled over their options. It was apparent that nothing in here was going to be much help in fixing whatever had happened - but that necklace seemed to be an awfully important part of the whole disaster. Grabbing it and getting it out of here, taking it to somebody who knew this shit way better than either of them, might be the key to a solution. At the very least, it'd be taking away a major source of transformative power that Adie seemed extremely eager to use, potentially slowing down the spread of this bimbo pandemic.
"Uh... Em?" Millie's whispering voice snapped her attention away from planning. "Your hair... it's..." As she trailed off, Emma fished out her phone, turning on the camera to look at herself and finding that her short-cropped red hair had shifted to a dark pink color, not far off from the girly shade that had come to dominate the shop. Her expression of concern only deepened as she looked back to her fiancee and realized that the rainbow pattern of her hair had been joined by a new stripe of the same pink color. She had a sickening feeling that if they shifted into their mermaid forms right then, they probably would've been greeted by pink scales too.
Even more concerning was the feeling she got looking at her wife-to-be. There wasn't a waking moment where she didn't have simmering lust for Millie, but now it had escalated to outright burning, a raging fire of desire. Her eyes briefly darted back to Adie, but mercifully, she felt not an ounce of attraction to the bimbofied witch; this place was affecting her, but it only seemed to be making her hunger after her beloved. Not even the absurdly powerful magic imbued into the walls around them could disrupt her devotion to Millie - but it was still changing her, gradually, slowed down by their love but not entirely stopped.
They had to move quickly here, before the air could overwhelm them. They would need a way out... maybe the necklace, if they got it, could provide that? It was clearly a pretty powerful artifact - blasting open the barricade or making a magical portal might be within its grasp. Either way, they needed that thing. "Okay. I've got an idea. I'll distract them, and when their backs are turned, you run in there, grab that necklace, and try and... think about getting us out of here with it." They both had inherent magical potential - it might be enough to trigger a useful effect from the gemstone. And Millie was still an incredible runner - she could move fast enough to avoid their grasp.
"Distract them? How?"
"I uh..." She shrugged. "I was just... gonna pretend to be a bimbo."
"You think that'll work?"
"I mean they're all dumb as a brick, can't be hard to fool them."
Millie raised an eyebrow, but didn't argue the point, instead nodding to indicate that she understood. Okay. This... this might just work. She leaned over to give her future wife a quick kiss before taking a deep breath and emerging from behind her hiding spot. It took the girls a second to notice her, and by then, she had already started swaying her hips and putting on a blank, idiotic expression, complete with quickly pulling up her shirt to expose a chest that was already impressive before she'd walked into this shop.
"Like, oh my gosh, you girls are soooooo pretty!" She said, putting on her best valley girl accent as she approached Adie. "And your titties are so big! Pleeeeeeeeease let me squeeze them!"