"No buts, young man. Go to the principal's office, no stopping at your locker on the way!" the teacher yelled, pointing to the door. But as he rose from his seat, Jason sat up in bed, panting and blushing. His pants were wet. They were also very tight, and Jason gasped as he raced to take them off, underwear quickly following. What he saw was even more distressing than the feet he still had - his cock and balls were nestled in a woman's wide hips, and as he got up, he realized he had a woman's ass too. The entire groin area except, thankfully, for his genitals.
Jason darted across the hall into the bathroom, and cursed as he realized that it was morning. The sun was just rising. He flicked the bathroom light on and shut the door, examining the damage more closely. His genitals looked tiny, he realized with a blush, on his expanded, reshaped hips. He ran back to his room, marveling at how different it felt with his new hips which somehow tapered down and fit his legs and waist. The discarded pants and underpants wouldn't fit, so he dumped them by the door in his "laundry" pile and looked in his underwear drawer.
Panties. His drawer was filled with many pairs of panties, of different styles, colors, materials, so many he didn't know where he might begin. Even thongs. Did his mother approve of her thirteen-year-old son wearing a thong? He decided on a lacy black pair, slipping them up his legs and looking for a moment at the small bulge. The drawer above them was full of shorts and skirts of a similarly dazzling variety, all of them designed to hug his hips and do very little to conceal his underwear. A skirt, he thought, was far too big a step even now, so he chose a pair of cutoff jean shorts which barely covered up his ass; one of the most modest pairs he could find.
Jason picked up the strappy sandals again, putting them on and hurrying downstairs for breakfast, noticing how his new hips were swinging. Today was going to be a weird day.