Sam looked up at Kelly (he thought that she must have had like 4-5 inches on him) and then at Jarred. He noticed that his friend looked different than the girl he was turned into initially. His hair was now brown instead of mousy blonde and his face was rounder, softer and with slightly darker complexion. He was also slightly more petite, thin even for his not-great height.
He then realised that, being his twin, he must look the same. There was no mirror in the room so he couldn't verify this. But looking down at his torso suggested it was the case. He just seemed so... narrow!
Jarred in the meantime just realized why Kelly looked strange to him. It wasn't *just* that she was more developed than the last time he saw her. It was about *how* she developed. The wish caused all girls get their curves faster but not grow up faster in general. So in result she ended up with her grown-up breasts on her still-15 and developing body. It definitely made them look bigger and he wasn't surprised she complained about back pain. He could only imagine her having to deal with growing adult sized breasts when she was even younger.
"Hehe guys, I really do like not having to look up at you." Kelly laughed clapping her hands. "I wish you could stay vertically challenged forever!"
Sam and Jarred felt a shiver but no obvious changes were apparent.
"Heyy, come on!" Sam definitely didn't feel happy with that wish. "It's already weird for me as it is!" He tried to stomp but that just resulted in his shoe sliding from his foot.
"Calm down Sam. I didn't mean that wish. It just kinda... came out. Just like your stupid one about changing how my puberty worked." she said with a wink.
"But... but... "
"No buts. Actually, speaking of butts I just got an idea for a wish I do want to make. Judging by your complexion it seems like you two actually became not my sisters but my step-sisters by that Colombian bitch. Well, in that case I wish you inherited her Latino genes for a grand posterior, except for your hips which are to become even wider than hers. I do hope you like stretch marks... Oh, and I also wish that you didn't get to go through any less boob growing than I had to!"
Sam knew the situation was far beyond out of control. Yeah, they made a dumb, hormone-fuelled wish and now Kelly seemed to really want to give them the taste of their own medicine.
He felt a tingle deep inside his bones which he knew was Kelly's wish changing his genome. When the tingle left a couple seconds after it started he still didn't feel the same. There was a weird pressure in his pelvis and his chest felt like if it was bruised in two very specific places...
"Shit!" he though. "It must be the first growth spurt!"
He looked at Jarred who was softly touching his chest. He must have felt the same. It started!