Terra slipped on the gender ring and became male, then the age-bracelet and became a 23-year-old, put on the ankle-bracelet and gave herself short hair, then wrapped a scarf around her wrist and put on the cat broach, turning into a cat-man. Finally, the color-change earring was clipped on and turned, turning her invisible.
"Alright!" Terra muttered to herself. "Now Cyndi will get hers!"
Cyndi was the daughter of a prominent lawyer and even at 13 had her own car with a chauffeur. She had all the best clothes, her hair and makeup were done at a fancy beautician, and she even had credit cards. And she was a conceited snob who had made Terra a sort of pet project to annoy. When Terra got a good grade, there were comments from Cyndi and her clique about "homely girls needing brains" and when Terra got bad grades there were comments about "stupid and homely".
Grabbing a handful of untested magic items at random, she decided that it was payback time!
Making her way out the window, Terra snuck across town invisibly. It was a wild experience, because the adult cat-man body she had was faster and more agile than an Olympic athlete. She ran invisibly along deserted nighttime sidewalks and jumped over cars as if they were nothing. At one point she jumped onto the roof of a two-story house and ran along the rooftops for several blocks!
Soon she arrived at the expensive Carmichael House - the huge not-quite-a-mansion that Cyndi's father owned. The upper floor windows were unlocked, and Terra quickly made her way inside and found Cyndi's room.
Little blonde Cyndi was still in her cheerleader uniform, chattering on her cellphone with one of her hangers-on about a date she had. That made Terra's teeth grind - her father didn't allow her to date, and Cyndi had made fun of "Terra the Nun who's too good for the boys" until Terra snuck out and went on a horrible date, got grounded by her father and had to listen to Cyndi prattle about "Terra the slut".
Terra looked at the jewels she had brought with her - a crystal blue pendant with little bulges on it, a ring with a rounded arrow that looked a little like a penis, a silver bracelet with a cloudy rock that might have been quartz. She was nervous about testing magical jewelry that didn't have any controls on herself, but didn't see why Cyndi couldn't test them for her!
Thinking the pendant looked fanciest, she snuck into the room and put it on Cyndi's vanity, then scribbled a note and put it with the pendant. Cyndi never noticed as she was still on the phone. Terra tapped her on the shoulder, making Cyndi turn around. Of course, she didn't see Terra, who was still invisible.
But she did see the pendant. Cyndi went over and read the note - "To a Perfect Girl, the Perfect Present"
"Aw, Daddy!" she said, giggling. "You'll do anything to get in my pants, won't you?"
That didn't surprise Terra as much as she thought it would - a 13 year old girl having her own chauffeur was a bit weird.
Cyndi slipped on the pendant and admired it, then frowned. Her hand felt her chest, then her face contorted in pain.
Terr could see why. Cyndi's respectable (for a 13 year old) A-sized breasts were growing. It must have hurt like hell as the tiny bra filled and overfilled, then snapped loudly, making the cheerleader tunic puff out. Cyndi clutched her expanding chest in panic and pain as her tunic filled, then fell back on the bed sobbing.
Terra was curious and extended her claws, slashing open the tunic and allowing the huge breasts to fall out. They were already bigger than Cyndi's head and still expanding. Terra deftly slipped the pendant off, and the expansion stopped, but the breasts were huge, gigantic things. Terra had once looked up huge breasts on a website, and estimated that Cyndi was now a H-Cup.
Cyndi rolled onto her back, panting, and sat up, her hands groping at her magical breasts. Even Terra had to admit they were great-looking, and they looked even larger on the small 13-year-old cheerleader. Taking advantage of her distraction, the ring went onto Cyndi's pinkie.
Cyndi's eyes grew wide as she clutched her groin. Standing up in panic, she slithered out of her underskirt pants like they were poisonous, then screamed. Standing out from her crotch was a huge dick, easily ten inches, erect and throbbing.
Terra thought it was pretty nice looking and decided to slip on the last present before the screams attracted anyone. The bracelet went on the screaming girl's wrist, and she stopped screaming.
Terra slipped off the ring, and the penis vanished. Slipping it back on made the penis reappear. Terra could see some use for both the pendant and ring.
Cyndi's face was utterly blank. Curious, Terra asked, "Can you hear me?"
"Yes master ..." Cyndi droned.
That answered the question of what the bracelet did, and Terra was glad she hadn't tried it herself.
A knocking came on the door. "Cyndi?" a woman's voice asked. "What was that?"
Terra whispered, "Tell her you were dreaming."
"I was dreaming."
That seemed to satisfy whoever was at the door, and they went away.
The invisible Terra pondered her new huge-breasted slave, whom she hated and wanted revenge on. Then she decided to have some fun.
Taking off the earring, Terra became visible and asked Cyndi, "Have you ever sucked cock?"
"Yes," Cyndi answered. "My daddy's, and a couple of my daddy's law partners, and my uncle, and four guys when we went to the Bahamas."
"Are you a virgin?"
"No."
"Suck my cock."
Cyndi got down on her knees and gave Terra's cock a through blowing, until Terra blew a load on her face.
Getting her up, Terra removed the slave bracelet. Cyndi looked around, saw the cat-man standing over her, and began to scream, but Terra hand covered her mouth.
"No screaming, bitch," Terra said softly.
Cyndi went quiet, whimpering.
"Do you remember sucking my cock?"
Cyndi shook her head.
"Then how did that sperm get on your face?"
Cyndi's eyes went wide and Terra forced the bracelet on her wrist again.