Kellie looked down at the infant Aiya. To her, she looked just like a white fox kit. Well, asides from having an anthro form. But even as the little kit giggled and played with her tail, Kellie could see intelligence in her eyes. It looked like while Lilith's potion reverted her to infancy, she still kept her memories.
"Well? Does she still have her mind?" asked Kiko.
"Well, yes," said Kellie, "Though right now, her personality is a bit closer to, well, a baby's."
Kiko gave a sigh of relief and said, "So, there's no danger in losing ourselves?"
"Well, not quite," said Katie, "You see, a baby's brain can't hold an adult's memories indefinitely. If she's left too long as a baby, she will forget who she was. So it would be a bad idea to be using this potion unless you have something to age them up right after it's finished."
"Then what are you waiting for?" snapped Kiko, "Make her an adult again."
"Ok, but it may take longer than aging her down," said Kellie, "You kitsune tend to be much older than you look."
"Just make her old enough," said Kiko.
With that, Kellie started using her ring's power. There was a little resistance at first, but Aiya soon starting aging up. Baby fat melted away as she shot up in height. Aiya blinked as her personality started catching up. "This feels so strange," she said, her voice cracking a little. A second tail grew out as she started into puberty.
Since Aiya had slipped out of her hospital gown when she was growing young, her body was uncovered as her curves started to grow back in. Kiko was more embarrassed, but Katie, Kellie, and Mika were more used to such things. But as Aiya was progressing through her puberty, Mika noticed something different. Aiya was looking a lot more flushed, she was panting more and more. And her vulpine nose could smell the growing arousal. "Are you alright?" asked Mika.
"I feel...so hot..." moaned Aiya, "I...I need something." She started groping her own breasts as they got closer to her own size.
"Aiya, control yourself," snapped Kiko, "We have guests here."
"She can't help it," said Kellie, "Aging up tends to make people horny as their hormones wake up."
"It might be more than that," said Kiko, "I think she's going into heat."
"So soon?" asked Katie.
"Her body's probably making up for lost time," said Kiko. Right now, Aiya was moaning loudly as she approached her original age, her third tail growing out. And at this point, she had abandoned all modesty as she tried to reliever herself.
"Well, I can say that Lilith's potion works," said Kellie, looking away.
"Not quite," said Kiko, "We're not quite sure if she's actually fertile or she's just feeling really horny."
"And we can't really be certain until we've used this potion on one of our males," said Kiko, "The infertility affects both genders, you know."
"Well, I'd hurry with finding a male to use this one," said Katie as Aiya whined, "I'm not sure she'll be able to take so many years of missed breeding seasons catching up all at once."