Mandatory Sleepover

He was a bit annoyed as he put on a shirt only to find that, yet again, his sister had switched them out with one of her own. It was obvious why. Despite being the older brother, he was quite short. Which didn't help matters when his younger sister ended up growing quite tall. Something she happily mocked him for on the regular.

In this case though, what he hadn't expected was that his sister had set up a trap for him. The moment he put on the shirt, her and her friends came out of the woodwork to tower over him, happily admiring the short man with the huge dress shirt.

She was having a sleepover, and had a plan to play with her 'little' brother. She had set up a shirt for him to put on that was specially enchanted to turn him into a female version of himself, which would give her a 'little' sister for them to play with for the sleepover, one that he was being forced to attend.

What she hadn't expected though, was that the female version of himself would have inherited height and size that his male form did not. What's more, instead of just an equal to her, he would had gotten quite big in MANY ways more.

So when the shirt had taken effect, he instantly started to shoot up in height, rapidly filling out the shirt as he quickly over took all three girls in height. Even more impressive, his newly attained bust very quickly took over the front of the shirt, pushing the buttons on it to the limit before exploding them off one by one.

The girls watching this had a mix of reactions, all very happy. One instantly fell in love with the gigantic beauty before her. Another quite admired the view from behind, as he had also gained quite the spectacular butt. His sister though, went from confused to shocked and then, as the buttons popped off, to complete ecstatic! She thought a little sister was what she wanted, but now, her much bigger sister was before her and playing with HER would be SO much more fun~.

She had already started to make plans to keep him this way as long as possible. Though, she hadn't realise quite yet, that she didn't have a choice at the moment since...

...the shirts buttons had the reversal enchantments on them.

***

This ones a bit rough and simple, had a bit of trouble getting the look right after picturing it in my head and my hand was starting to cramp up trying to get it looking right, so I opted to just get it as close to done as I could and get it posted. :)

Color only on the one character, no BG shading, simple stuff. You can likely tell from the linework that I couldn't really get the look past the basics. Included a bit of fun though, a version of the character with color and a highlight with transparency, since I though it looked kinda neat. Also curious how it even displays on patreon, if at all, so a bit of an experiment. :)

Anywho, enjoy! :)