Try on some wedding dresses

Suddenly, all activity just... stopped. Jan was left panting for a moment, trying to get a hold of her senses with no teasing from inside her vagina anymore. Red-faced, she just sits down on the floor, taking deep breaths and trying to meditate for a moment to calm herself down.

"You really worked her up," you said. "Why stop, though?"

"Oh, I had a thought," Jane said, causing Jan to jump a little in surprise, and then look down at her crotch. It seemed like the voice was resonating from between the legs... "I still have a big to-do list for the wedding! I was thinking, maybe today's a good day to go try on some dresses, and use Jan as my model?"

"W-what?" Jan stammered, standing up after she felt like she'd regained some semblance of control over herself, resting a hand on her face. "I don't... Jane, I don't understand, you want me to try on dresses for you? I'm not even your size, something that works for one body shape won't work for another, and..."

"Oh, I'll take care of that, don't worry! Here, watch."

Jan began to moan, shutting her eyes tight as she braced against the countertop nearby. Jane had been easily manipulating the shape of her body, although she had done so in very localized areas to start. This time, though, Jan was going through a bit more of an elaborate transformation... her breasts grew in size rapidly, as did her ass! Her hips really rounded out, and while she lost a couple inches in height and her arms and shoulders changed proportions, when the ghost was done influencing the shape of her body... Jan opened her eyes again and looked down.

"...Oh my god, this is... your body?" Jan asked, barely above a whisper.

"Well, not exactly," Jane said, causing Jan to jump again as the speaking seemed to do something drastic between her legs. "It's still definitely yours, but it's my shape, down to every last detail from the neck down, encased in your skin! A neat trick, huh?"

You nodded a little, having to turn away briefly like you were trying to feign disinterest. But, nothing could be further from the truth... Jane was giving Jan the precise things that you felt were her strengths over the other woman. With that beautiful body and Jan's lovely face and hair--not to mention, a **** personality--you would absolutely pick Jan over Jane were you not already happily engaged to one of them, you reminded yourself.

Jan smiled a little down at herself, then over at you, before she started stumbling forward and away to the bedroom. Her movements were clumsy, almost like she was being tugged by strings or something, truly puppeteered away from you for a moment. You hesitated, thinking you should follow, but you didn't hear any screaming or yelling or anything.

Instead, when Jan returned, again controlled by an inside **** that couldn't quite get the hang of moving her body fluidly, she was clad in one of your favorite outfits for Jane to wear, a light blue v-neck sleeveless top and some grayish skirt-pants that flowed down to her feet. You had to do a double-take, seeing your neighbor dressed up exactly as Jane, who no doubt chose this outfit particularly to tease you.

You felt bad for Jan. She was being used for your girlfriend's amusement, and the idea that this would go anywhere was fleeting at best. But, she smiled all the same like a dream was coming true. And then, she grit her teeth and shut her eyes again as Jane spoke once more, really making it seem like she was vibrating Jan's pussy or something with each word.

"All I need from you, Jan, is to stand still when we get down there. I'll pick the dresses, I'll do the poses and twirls, I'll make the decisions. You just keep flashing your pretty smile and distract John so he doesn't look at the price tags, got it?"

"Y-yes ma'am..!"