Billie was breathing deeply as she placed the small package on her bed, a bundle of nerves and anticipation. It was a… gift. From Billie’s… ‘mistress’.

It still felt weird thinking of Veruca Balfoy as her mistress… but that was the role Billie had found herself forced into after the snobbish blonde had found and rescued Billie from her enchanted restraints after the magic had malfunctioned. And to be fair to Veruca… it was not like Billie required a lot of convincing. Being someone’s pet, their toy… the idea made the kinkier parts of Billie tingle.

Still, Billie felt bad betraying her roommate Cherry. Not that Cherry was any nicer of a person than Veruca, but seeing the redhead reduced to a ditzy bimbo was startling. Cherry was usually so poised, so… smirky. And now Cherry was going around sucking cocks whenever a guy asked…

Well, it was kind of poor Cherry’s own fault. After all, her current state was exactly what she was trying to inflict upon Veruca. But still Billie felt guilt, considering she was the one who provided Veruca with the information and magical links necessary for the reflective countercharm that had doomed Cherry to several weeks of bimbofication.

At the moment, though, that was not what filled Billie’s thoughts. No, at the moment, Billie was much more focused on the small cylindrical package she had found waiting outside the door to her and Cherry’s room. The container was signed simply, ‘Mistress’. Billie had no doubt that this was some new toy from Veruca, who had promised to fulfill her pet’s need for bondage and humiliation, even when Billie had insisted that it was unnecessary.

Holding her breath, Billie opened the cylinder. A viscous black liquid spilled out onto the bed. Initially it seemed like a small volume, but Billie quickly noticed that the ooze was expanding and spreading. And then it leapt at her.

The liquid surged upwards, rushing across Billie’s face first but quickly spreading to cover her completely. She was coated, head to toe, with the thick gunk which she has just enough awareness to recognize as some form of sentient latex as it begins to stiffen around her.

Billie had been dressed, but she can no longer feel her clothes against her skin, only the latex that clings to her every curve. Her best guess is that the substance had dissolved her clothes. As the inky material solidifies, it shifts its shape to perfectly encompass her body, leaving gaps only at her eyes, nostrils, and a little opening at the top of her scalp for her ponytail to stick out of. Every other inch of Billie’s body is coated in the skin-tight material.

Billie finds herself essentially paralyzed, standing besides the bed but unable to move. The latex resists her every attempt to command her body, pressing against every part of her with a stifling intensity. And then it begins to vibrate, at least the pieces pressed against her tits and clit. Billie groans into the latex sealing her lips as the sensations begin to quickly get her quite worked up.

Billie orgasms twice from the latex’s ministrations before the door opens. From her frozen position by the bed, Billie can just see Cherry enter out of the corner of her eye. The redhead, dressed in a scandalously low-cut blouse and a microskirt, gasps and rushes over to her trapped roommate as quickly as she can on her new stripper-heels.

“Oh Em Gee, Billie, are you okay?” Cherry says with her now characteristic valley-girl voice. Checking on Billie, Cherry places a hand on Billie’s latex-covered shoulder. That was a mistake.

The latex surged again, crashing over Cherry like a tidal wave. The redhead is pulled against Billie forcibly, the two girls’ now naked bodies pressed tightly together as Cherry’s clothes are dissolved just like Billie’s were. Breasts squish against breasts as the roommates’ lips are drawn together into a forced but sensual kiss. And then the latex settles again, leaving the two girls stuck in an intimate embrace of sorts.

The vibrations intensify now, but the new arrangement of the latex leaves a small amount of wiggle room, so long as that wiggling is done against the other girl’s nude body. Both girls moan into the other’s mouths, and its not long before their tongues begin to dance and play as the arousal heightens.

After what feels like an eternity of orgasms and lustful kisses, the door creaks open again, as Veruca lets herself in with the key she demanded of her pet.

“Well, well, well. Looks like I get two playthings for the price of one.” The blonde laughs, haughtily sweeping her platinum locks over her shoulder. Cherry tries to scream in rage at the sight of her rival; even her bimbofication had not reduced the redhead’s hatred of Veruca. But just like Billie, Cherry is helplessly trapped inside the latex cocoon.

Veruca saunters closer, smiling mischievously.

“I think we’re going to have a very interesting evening, ladies.”