"Good," says Brooke, "because it's MY turn now." She lies down on the bed beside you and begins to use the vibrator on herself. You watch, mesmerized by the sight, still recovering from your own orgasm. Eventually, Brooke turns to you and says, "Hey honey? Would you mind doing the honors, since I did it for you?"
"Of course," you say, with a giggle. She hands the vibrator to you, and you lean over her and begin to tease her with it. She lets out a soft moan. "Do you like that?" you ask.
"Mmm," she says, "I lo(UNHH!)ve it, but... could you maybe... get down and lick my pussy a little bit more, too?"
You grin wide. "Hehe. Alright." Voluntarily, you rise from the bed, and then get down on your hands and knees between her open legs. Just as promised, you begin to lap at her slit once more, running your tongue across her most intimate of areas. You're so focused on the task at hand that you don't notice when Brooke reaches over and pulls a necklace from the magic jewelry box. "Is this good?" you ask, oblivious.
"That's great, honey," she says, resting her legs gently on your shoulders. "But I think I'll take it from here."
Finally you look up from her vagina and notice her wearing the necklace. "Brooke? What... what're you doing?"
"I'm sorry about this," she says. "It's not about you. And I'll turn you back, I swear. But, right now, I just... want you to be a mannequin."
Her words shock you. "A manne--" you start to say. But before you can finish, your body hardens in place, a surprised expression still frozen on your face. Brooke takes a look over you. You've turned to dull, smooth, lifeless plastic, stuck in the same position on all fours. On closer inspection, Brooke realizes that, although your breasts are still mostly intact, both your nipples and your pussy are gone, replaced by featureless mounds. She also notices that you now have seams along your neck, waist, and each of your limbs-- presumably because you now can be taken apart.
Brooke has really done it. You've been turned into a mindless, inanimate mannequin.