On the bus Ty thought "I got all these reality breaking powers, why am I going to school. What will I ever need to learn about? Learn how to abuse the world?" Ty then thought a bit and said "Doesn't necessarily sound like a bad idea... well first let's be safe, wish i can't be harmed... Also should make sure the school grounds aren't going to affect anything. I wish all things that happened would turn back to normal once they exit school grounds, but revert to their changed selves when they come back onto school grounds." The school bus dropped everyone off and Ty decided to test out the change. Ty wished a penny of his turned into a quarter. With a quarter in hands in school ground Ty walked out quickly and it turned back into a penny.
Wanting to flex his power a little he noticed some girls pass the gate with some skirts on. Ty went to the one on the left who seemed to have a nice roundness at the back of the skirt and then started spinning his finger in a circle as if to draw in a fishing pole, and the skirt slowly inched it's way upwards shorter. Went up past the knees, then started to show the girl's supply thigh flesh, and then the very bottom of her frilly pink panties were showing and that's where Ty stopped. The girl noticed quickly and then started freaking out and trying to pull the fabric down, and it semi worked as you couldn't see her panties any longer, but her ass was a lot more highlighted along with her rather nice legs.
Ty wanted something similar to happen to the girl's friend, but didn't want to get predictable. He snapped his fingers and then the next girl felt something herself and grabbed her ass in time to feel it start growing as the nice tonned but small but started to put on a few pounds. The mass just started jiggling and lifting up the skirt as the girl started to lean forward to try to counterbalance the new weight. Guys watching cause her friend's skirt just got shortened a foot or two, were now being treated to a girl with a really large, but supple ass. It was smooth, and tight. Less of an ass made of fat, more of a healthy tight ass but blown up to a much larger proportion and continuing to get stretched larger. The stretching ended as her asses were now the size of large pillows, and somehow her panties were still in one piece as if magic were holding them together.
The first girl with a skirt tried running out of school thinking of going to sprint home. Wasn't too far away, but as the girl ran out of school grounds her skirt re-lengthened and she forgot why she was going home. She thought "What was I doing." then turned around and saw her friend, not the version whose ass now forced her into a sitting position, but a version standing up waving for her to come. She re-entered school grounds at which point her skirt re-shortened and all her memories came back. The girl remembering what happened with school grounds tried an experiment and leaned her ass out of the school gates and saw that her skirt had re-lengthened... Then felt a force trying to push her ass in. It was like her outside butt with no memory of the skirt being shorter was trying to pull itself into school grounds as she attempted to push back with her own legs. Eventually though she just gave up and told her friend "It's like... When I leave I go back to normal, but can't remember anything. I might just be trapped here till school gets out."
her friend said "I mean at least it's just your clothes that changed. Gonna have to get more in shape with this big weight on my ass."
Ty left the two alone as rumors started spreading more and more, and as kids started testing the odd memory discrepancies around the school ground limits. The next thing Ty attempted to do was...