Scenario for the thing: visiting your doll-obsessed friend and soon finding out all the dolls she keeps were actual people. You make a deal that you’ll become her doll only after she turns everyone back
Surprisingly, she complies. Now she’s on top of you, straddling your waist as she brings the makeup brush closer and closer; the first step into becoming a doll. Will you be porcelain? Cloth? All you know is that despite your earlier worries, this will be worth it
"And you're absolutely sure about this? You know what's going to happen to you?"
A quick glance to the shelves of lifeless dolls in your best friend's apartment and you nod.
"Very well then." The woman gets up, crossing the room to get her sewing kit and sets it down next to you. Her movements are fast and precise as she retrieves several tools and makes her way over to the shelf. She grabs a doll carefully, one with red hair and green button eyes. An empty smile stitched onto fabric skin. Your friend whispers something into the doll's ear, and it must have been a powerful something, because the room itself seems to reverberate with powerful magic. The dollmaker uses her tiny implements to pull at a thread along the doll's neck, allowing it to unravel until soon, the doll is no more. In its place, on the ground, a woman sits, blinking and disoriented. She barely takes a moment to take in her surroundings before getting to her feet, fixing her red hair behind her head, and walking out of the apartment without a word.
You look to your friend for an explanation, and she simply replies. "They will return to their lives, as if it never happened."
She picks another doll off the shelf, performing the same procedure as another beautiful woman stands up and leaves without acknowledging your presence. One by one, every doll is changed back, until the shelves sit empty and the room is quiet.
"Their transformations were reversible, via the thread binding enchantments. They agreed to this, just as you agreed to your fate, but yours will not be reversible. In order to honor our bargain, you will be my one and only doll forever." She could read the hesitation on your face. The finality of it. There was something somber, yet exciting. "I wouldn't do this for just anyone. But your beauty, it is unlike anyone else. I will be honored to have you on my shelf forever, dear. I've always fancied you more than a little, and I know you've felt the same. So please, be beautiful for me forever."
With a deep exhale, you relax into the sofa. Your friend climbs onto you, straddling your lap and leaning over you as she guides her hands along your skin. She produces a needle, already pulling a silken thread. And she begins to stitch you away. The sewing begins slow, but picks up pace as she gets to working. The needle feels as though it should hurt as it pierces your skin, but it is instead a soft, tender feeling, relaxing the skin into soft, unfeeling fabric as it passes through. Soon, the feeling of her hands against you is dulled, your sensation lessened. You'd already relaxed beyond movement, and now as you try to tilt your head or move your arms, no motion is conjured.
You've shrunk down enough to be held in her hands now. She brings you to a desk and works on the intricate details. She preserves every inch of your beauty as she preserves you in eternal dollhood. You'll be so pretty on the shelf, she coos. You never were one for words. Your presence was always enough to make her happy. Your smile enough to make her laugh. So she'll keep you that way, forever. Always nearby. Always smiling. Always radiating beauty and warmth. A perfect friend. A perfect doll. It's all you ever really wanted to be, you think as the final stitches fall into place. You smile. You smile. You smile. And you're gently lifted to the shelf. The lone doll. The happiest, prettiest girl in the world.