Img source: https://twitter.com/oekakizuki_turi/status/1485864034566307840/photo/1
Artist: oekakizuki
This was one of those times when I saw an image and basically immediately got an idea of what I could do with it c:
naming it was a little more difficult though
"The Thaumaturgic Flare-up Phenomenon (also known as TF Phenomenon, Human Transformation Syndrome, and Anomalous Reshaping) are rare occurrences in which people's bodies and sometimes reality around them[citation needed] are altered
through unknown thaumaturgic principles. Due to Thaumatology being a new and poorly understood field of research, many natural and intentional transfigurative events are wrongly attributed to the TF Phenomenon."
Darrel closes the Hikipedia article after reading the first paragraph. He had recently heard it being brought up on local news and decided to look into it, but the size of the article made him decide to not read all of it.
It seemed like a fascinating topic, but not one he had the time to dive into right now. He plugs his phone in and puts it away, then chuckles softly as he thinks about how unlikely it would be that he would ever come into contact with it.
After turning off the lights, he climbs into his bed, and tries to go to sleep...
A few hours later, Darrel wakes up. He feels strange as a magical tingle from the very thing he looked into last evening goes through him, but is too groggy to realise it. As he shifts around, his arm brushes past one of his swollen and unusually sensitive nipples. Though now slightly aroused, he quickly dozes off again.
While sleeping, he softly holds his penis. Gradually his skin softens, and all hair under his head disappears. As his fingers become dainty to match his softening skin, the sensation of it holding his dick becomes incredibly alien to him.
His dick hardens as he softly begins to rub it with his soft fingers. He murmurs softly. His body’s proportions begin to change, causing his shoulders to narrow and his hips to widen. He rolls onto his back to get comfortable again.
Sensitive fat then begins to fill out his chest as a pair of breasts inflate into existence. He reaches down and begins lightly jerking off with both hands, softly squishing his still growing tits in between his arms.
His breasts jiggle slightly in between his arms, and only stop swelling after well exceeding the size of those of his sister. His thighs and his butt are next, they begin to plump up considerably, giving him an extraordinary hourglass figure and tightly stretching his pyjama pants.
As his body almost finishes transforming, his dick twitches slightly, before shooting cum off into his pants for one last time. It then begins to shrink down, quickly retracting fully as it's replaced with a slightly moist pussy. After that she sleeps soundly, not waking up again until the next day...
The next day Darrel is suddenly and rudely awoken as her bedroom door is suddenly flung open.
"It's almost fucking noon my darling brother~! Waddya still doing in bed~?!" She yelps as she jolts up and looks around bewildered.
"O-oh uhh..." She rubs her eyes. "Sorry, what time is it?" Tina tilts her head slightly, as she has no idea who this person is. She then faintly smells something though, and smiles.
"... You're his girlfriend or something, aren't you? ... Shouldn't it be you that is hiding though? You know, instead of Darrel?"
Darrel looks around confused. She is talking as if she isn't there, yet she is talking to her. She soon figures it out though, as she finally sees the enormous tits hanging from her chest. Her face goes pale, and she quietly stammers.
"T-Tina I-I have tits?"
"Yep, I bet Darrel loves..." She frowns as she sees Darrel's expression. "Are.. you okay? You are looking very pale."
"No, i-it's me, Darrel..!"
Two weeks later, Darla is gradually settling into her life as a girl. Though she doesn't hate being a girl as much as she thought at first, she was still far from used to it. And despite her sister's insistence, she would never wear any truly girly clothes...
Or at least, that's what she had told Tina. In truth though, she had secretly been increasingly curious about it, and today was her chance. Tina had just gone out for groceries, and wouldn't be back for some time.
She quietly walks into her room, and find her laundry basket, which she hadn't sorted or folded yet. She slowly inhales, then exhales. Blushing brightly, she decides to do it and begins taking off her clothes, aside from her bra, which she had begun wearing only a few days after turning into a girl.
She searches through the clothes, and picks some simple panties, a short-sleeved shirt, some thighhighs, and one of Tina's longer skirts. While she is struggling to pull the shirt over her chest, Tina shows up in the door opening, and silently watches in amazement as her sister puts on her clothes...
Darla looks at her reflection and blushes. "It's a little tight, but.. I look pretty, uh.. good..."
"I need a longer skirt though..." She pulls her skirt down, but there's no way this skirt could ever cover her ass completely.
"Then let's go buy some~!"
Darla slowly turns around in horror, and sees her sister, smiling more brightly than Darla had ever seen her smile.
Before she can respond, Tina grabs her arm and begins dragging her along. It was too late for her now. Tina had wanted a partner to dress up with for her whole life, and had now finally found that person.