Jeff felt the surge of excitement from when he first received the Chronivac.
"Mirror! I need a-"
A full length mirror appeared.
"Eventually," Yohannon said in a nonchalant way, "you should be able to conjure things yourself, but, I figured I could give you a boost since you're basically a newborn."
Jeff barely heard him, as he...
[No, that doesn't sound right,] Jeff thought as *she* watched *her* eyes getting larger, her forehead less prominent, her cheekbones higher. [I can be whatever I want whenever I want to - so when I'm in a female shape, I want to be...well...female.]
Jeff watched her lips become perfectly pouty, her nose become a cute button, her chin reduce to a lovely feminine curve, her adams apple retract from a neck that seemed to grow longer.
"Wow - whoa! Is that my voice??" Jeff asked - she now had a beautiful, melodic voice. Innocent sounding, but Jeff's pervy mind immediately conjured thoughts of how this voice would sound during sex.
[Am I gay? Bi? Wait - no, I'm Djinnfolk, I'm pansexual, I can fuck anything that wants to fuck me! This is so cool~!]
Yohannon rolled his eyes genially. He'd have to remember to tell the lad - ah, pardon, the lass that her surface thoughts would be audible to sufficiently elder Djinn...
Jeff's shoulders suddenly narrowed and his arms and hands reshaped into ones more fitting of the cheerleaders she had an on-again-off-again crush on, but her focus was drawn to her chest as it began to tingle.
"Oh man, my boobs are coming in!" she whispered to herself in aroused awe.
And indeed they were. Jeff watched as her shirt began to tent - just a little at first, then a bit more to A cups, then to Bs...
"They're still growing, but you can barely...Hey, Uncle Yohannon? Can you - no, can you show me how to change my clothes?"
Yohannon beamed as Jeff's tits grew to C cups. The girl wanted to learn on her own, that was a great sign!
"It normally takes a good deal of focus your first time, so let's try with training wheels. I'll provide the power you'd normally draw from yourself or the realms of magic - you just focus it like I tell you."
"Ok, got it!" Jeff said, her eyes never leaving her still-growing D cups. How big was she going to get?
"Now, first feel the power at the edge of your mind - like it's just where you can rest your fingertips on it."
"Got it..." Jeff said, sensing the magical energy and watching her DDs begin to really stretch her boys' t shirt. They seemed to stop there, and her waist began to narrow considerably.
"Then envision how you want your clothes to look, and 'pull' the magic towards you as you do, as if you're pulling it on like a coat."
"Pull it towards me..." Jeff muttered, closing her eyes to help her focus as her hips and butt ballooned out. She felt the power flowing through her, and into her clothes. She briefly heard Yohannon mutter "oh, my...well I suppose it's a classic..." but she was too focused. As her legs dropped in length - and her in height - she felt her clothing twist and morph, becoming lighter as they shifted. Finally, her penis and testicles gently withdrew into her body - the former becoming ovaries as her womb blossomed, the latter becoming a little clit nestled in her folds. Finally, Jeff opened her eyes and looked in the mirror-
-To see a slightly more curvy take on Barbara Eden in I Dream Of Jeannie, albeit in blue tones rather than pink, and with a face that bittersweetly reminded Jeff of...no, never mind that, she put that thought away and enjoyed her first real magical success.
"I did it! Yes! Oh, er, the costume isn't, you know-"
"Offensive? Not at all. Power dynamics between Humans and Djinn are...complex, but suffice it to say I don't think you could reasonably be accused of punching down. Besides, there are a lot of young Djinn and Djinnfolk who dress like that because they're more closely tied to the mortal world; it's a generational thing, I think."
Jeff saw his father step back into the room and make eye contact with her in the mirror. He looked surprised briefly...and then his face, too took on that bittersweet look.
"...you look amazing, honey. And more like your Mom every day."
Jeff smiled sadly, looking at the face that she'd have always had if she'd been born a female human - a face that looked nearly identical to her mother's at her age.
"Thanks, Daddy."