Amy turned it over in her head, and decided that since she already looked kind of like a sex doll, that she should go all the way.
She walked back out of her room, and into her mother's room again, this time, looking for a push-up bra in her size. After a few minuted of searching, Amy found one. She put it on, and made sure to have it really push her breasts up. Once again, she felt the familiar sensations of the bra fusing with her skin. Once it was over, Amy looked down at her breasts, which now looked like they defied gravity. She walked out of her mother's room, wondering what else she needed.
Then, she remembered she need a pair of condoms, for her mouth and vagina, and they had to be O-shaped when the went in. Amy walked into her brothers room, and looked where she knew he hid condoms. She smiled a little bit, and would have giggled if she could. Her brother bought a pack of "Small" sized condoms. Amy took two of them out of the box, and then went into the kitchen.
Once there, she grabbed the broom, and slid a condom on it. She put it in her mouth first, but made sure to smile. This time, the feeling was a pleasurable warmth which lasted a minute or two longer than the feeling of something fusing to her skin. Amy's smile grew wider, and eventually the warmth subsided. She pulled the broom out of her mouth, which had a surprising lack of saliva on it, and was aroused by the feeling of air inside of her now O-shaped mouth. She felt a twinge of lust, which quickly vanished. She ran her finger around the edge of her open mouth, which felt good.
Her finger slipped in, and she puckered her lips around it, and started sucking. She felt nothing but pure ecstasy as she kept sucking on her finger. If she could, she would have moaned as loud as she could. All she could do, though, was rub her body squeakily. For a few minutes, all Amy did was suck on her finger, enjoying it. Then, she remembered she had to give her vagina the same O-shape, and reluctantly withdrew her finger. She felt another spark of lust, which lingered for a little while longer than the last one. She found that she enjoyed sucking on her finger, but not just for the feeling it gave her. Something made her enjoy it, but she couldn't quite pin down what it was.
Amy decided she would take the next one to her room. She picked up the broom and her brother's condom, and walked back into her room. After rolling the last condom onto the broom, Amy sat on her bed with her legs spread, and slowly slid it into her bright pink slit. The feeling was incredible, like when she was sucking on her finger, but even more. She couldn't do anything more than continue sliding the broom into herself.
She stopped when she felt the soft warmth of the condom fusing with her, making her vagina O-shaped. Once the feeling subsided, Amy started sliding the broom further into herself. Eventually, she reached the broom head, and then started pulling it back out. Then, she stood up in a way that the broom was still inside of her, and she was straddling it. Amy started to quickly rock it back and forth, relishing in the feeling. She kept building and building, and got the point where she was on the brink of orgasm. She stayed this way for the ten minutes she stood there rocking on the broom. Eventually, she stopped, remembering she didn't have seams or an air-valve.
Amy pulled the broom out of herself, and looked down at her vagina, finding it O-shaped, and very inviting. She looked down at her feet, and thought they looked too 'human', like she was wearing some kind of shoes. Her feet were completely flat on the bottoms, which bothered her. What also bothered her was that she had fingers, but she needed them for the air-valve and seams.
She decided to fix her feet right there, and went through her drawer. She found a pair of thin socks, and pulled them on. Amy once again felt the familiar tingling, itching, then burning as the socks fused with her skin, becoming the same jet-black latex of her skin. Now, she had proper sock feet. Her feet now had a round toe, with no indication she once had toes at all. They were also rounder on the bottom, looking less like shoes, but not entirely human either. She tried to wiggle her 'toes', but found she couldn't. All she could do was move her foot at the ankle. After walking around her room a little, though, she found this wouldn't be a problem.
Amy tried to think of a way to give herself seams, but couldn't think of any. She did know, however, how she could give herself an air-valve.
Amy walked into the utility room, looking for an old pool-toy. She was going to cut the air-valve out of it, and use it for herself. After finding an inflatable alligator pool toy, she took it into the kitchen, and grabbed a pair of scissors. It was a little hard to get the scissors into the toy, but Amy managed. She cut out the air-valve, and made sure it had no scraps of plastic left over from the pool-toy. After taking a moment to decide where she wanted to put it, Amy put it up to an are just above her butt. There was a tingling feeling, which was soon replaced by a feeling of weightlessness. Both of these feelings quickly subsided. Amy turned around to see the air-valve was now a part of her body.
Suddenly, Amy started to feel stiff. She slowly walked back into her room to see if the stiffness meant that any new changes were happening. Each step, she grew stiffer and stiffer. Finally, she had reached her room, and stood in front of her mirror.
Amy then lost her balance, and fell over onto her back, and bounced a little. She couldn't see anything but the ceiling, as her neck was too stiff to move. However, she could feel her elbows bending, and her legs spreading.
'Yes! Yes! I'm finally going to look like a proper sex doll!' Amy shouted in her head with joy.
She saw out of the corner of her eye that her fingers had merged into a single mass, giving her mittens for hands. Other changes happened which she couldn't see, but she could feel. Her waist constricted, giving her a 20-inch waist. Her butt expanded, and an O-shaped hole, just like her mouth and vagina, formed where her anus was. Her feet shrunk some, and seams spread over her body. Down her legs, up her sides, and around her head. Her hair changed as well, each stand of hair becoming bright pink latex. Her nose disappeared completely as her face flattened out. Finally, Amy felt her stiffness go away.
She found she could move again, but couldn't bend her elbows. In fact, she couldn't bend her 'fingers', and couldn't move her head. All she could do was bend her legs to walk, and twist her waist. She could barely bend herself backwards or forwards. Amy found she didn't want to, though.
Then, the final changes started to happen. Thoughts and feelings of lust filled her mind. Slowly, Amy forgot her past, and that she had ever been human. She only thought of sex, and being used as she was, a sex doll. She had even forgotten the name "Amy", and now called herself "Dolly".
Dolly looked in the mirror, and puckered her mouth a little, feeling like she need to fill it with something.
The stiffness returned, and Dolly found herself back in the position she was before. On the ground, legs spread, and elbows bent. Slowly, she found it harder and harder to move, until she couldn't move at all. Wait, move? Why would she need to move? Dolly didn't move unless her master moved her.
"Dolly needs master to come home and fuck her. Dolly needs her holes to be used." Dolly's mind was filled with nothing but these thoughts, and those like it. Amy no longer existed.