Of course the first thing Gwen was going to do with the Breastinator was giving herself the dream body she had always deserved in her humble opinion. The goth girl had always felt herself attracted to breasts. Maybe it was because of a weird combination of being a closet lesbian, growing up with small breasts herself and being bullied in school for them. Heck, having a boob body was a small reason why she became friends with Sarah, at least according to this reality. But she was no psychologist and she didn't care.
Gwen practically ripped the clothes off her body, taking particular note of her moist panties. She decided to take one last look at her nude body in the mirror. Aside from the D-cup breast she just got her five foot tall body didn't have any particular features. Average was the perfect word to describe it. The only outstanding traits were her white-dyed hair, the goth-makeup and the red contact-lenses, all things she added herself. And now she’d give herself a perfect body. Goodbye, old body, you served me well.
She picked up the Breastinator. Once she started there’d be no way back… actually there was, but details. But first adjusting everything. With the display she chose to grow new breasts (one of the downsides of near-endless options: Scrolling through them) and then opened the settings. Most of those were fine as they were, though she raised the sensitivity a bit, she wanted to enjoy her new body after all. The goth decided to keep the Reality Shift on and that for now only she should be aware, even if it might be funny to see her family's reactions.
Among the recently unlocked options she noticed a new Nudity Shift, which adjusted reality so that the affected body part could be freely displayed in public with everyone accepting it as normal as well as protecting that part from temperature, weather and many other harms. It would affect the whole body if it was used on enough body parts. Of course the turned that On. Sarah told her how uncomfortable and time consuming it can be to squeeze her body into clothing.
With the settings done the goth was contemplating for a moment where to start, before deciding to just continue on her chest. She pointed under her D-cups and created perfect copies under them. And then again. Already Gwen could feel her arousal rising quickly and the urge to spend the rest of the night masturbating just groping her 3 pairs of tits, but she carried on.
Up next Gwen wanted to try something new, so she pointed the Breastinator at her left shoulder. Starting with only a nipple, a tit was growing on her shoulder. Once it got big enough she could feel her shoulder slowly being absorbed by the boob. She continued until her shoulder was fully replaced by a firm, soccer ball-sized tit whose nipple was pointing straight forward. Then she repeated that with her other shoulder. Looking in the mirror it reminded the goth a bit of the power suit of a famous video game heroine.
That gave her another idea. This time she shot her elbow and had it be replaced by a tennis ball-sized breast. Gwen repeated that with her other elbow as well as her knees, though she scaled the latter to about the size of apples. Finished her arms and legs gave the appearance of a ball-jointed doll. For good measure the girl added small A-cups on the back of her hands and on top of her feet.
Speaking of feet, Gwen did always feel a bit small. She sat down and lifted her first foot. She aimed at the ball of her foot and grew a four inch high breast (again firm and round like most others) under it. Then she shot her heel, but the boob that sprouted here was twice as long with 8 inches ,conical and she made it firm enough to produce the telltale clacking of heels. Satisfied with the boob plateau heel she repeated the process on her other foot.
Next up was the back. First came two pairs of D-cups on the same height as her upper two front pairs. Second Gwen decided to replace her butt cheeks with breast, but not much bigger than her original ass because of what she planned next. Then the girl pointed the Breastinator at her tailbone. Admittedly the boob tail idea was stolen from the twins, but it was just too tempting. She decided to shape the breast like an upscaled wasp tail with a pointed nipple. Of course she immediately tried to sit on it. “I have to give it to Sarah, this is even more comfortable than it looks.”
Nearly done. This time she aimed at the right top side of her head and created a grapefruit-sized boob. Then she made another boob of the same size attached to it. And another. And another. Until this chain of boobs went down to her waist. Again she repeated this on the other side. Satisfied she shook her head to see and feel her breast twintails dangle around.
And now for the grand finale, the change Gwen specifically saved for last. She pointed the Breastinator at her crotch, her hand shaking with anticipation. She pushed down the trigger and tried not to moan too loud when a breast grew out of the front of her crotch with her pussy on top. The moment it reached the size of a cantaloupe Gwen cautiously threw the Breastinator on her bed and began masturbating, one hand groping and fingering her breast pussy, the other playing with her chests before grabbing the breast twintails and rubbing those over them. Once she reached the best orgasm in her life, she just switched her hands to other breasts and kept going.
Gwen had her perfect body. At least for now. With a device like this she’d be hard pressed not to change something regularly to keep it from getting stale. But for now she was lost in pure ecstasy.