Chris dumped Karen's bra and panties on the floor and like most teenagers forgot about them. One day he was going through the ruin that was his room whilst pulling on a shirt, when his bare foot connected with her lime green panties. He looked down and saw that the panties were stuck on his left heal. Chris didn’t notice at first, but his left foot had smother skin on it and was smaller like a girls. He shook his leg trying to shake them off, but they only slid on more and as they did his body hair below where the panties were at went away and his skin smoothed out. He keep shaking until he lost balance and fell down on his butt. “ow” he said. He looked at the panties again and something about them horrified Chris. Now the panties were on both legs and were climbing up to him. “No not this again” he yelled. As the girls underwear moved past his knees his own underwear was being pulled down his legs. Chris grabbed his underpants and tried to pull them back up, but it was no use. The fabric ripped in his hands and they fell off him in shreds. The panties were almost all the way on them. It now moved onto his crouch. “No you don’t!” he said and tried to push them off. It seemed like a losing battle to him, but soon he got tired and gave in. the panties went all the way on. He let go as he felt the dread of him losing something that was very important to him. He looked down to see the small bulge in his panties was getting smaller by the second until nothing was left that she could see. Her butt got a little bigger now after that last change. She then felt her hips spread out and her body pinch in. “Ah! No they can’t see me like this!” she said and grabbed her button up shirt she had been wearing and put it on. She didn’t have time for the pants so she just ran over to hide between the lockers. “Maybe...maybe I can button up this shirt and hide this and walk out with them thinking I am a girly boy.” she said and started to do so, but something stopped her. “when did that get there!?” she said looking at the lime green bra on her chest. She felt a push on her chest as two breasts grew to fill out the bra. Her breasts were very big now, so big in fact that she could no longer button up her shirt now. A ribbon landed in her hair. As it grew longer, but Chris didn’t notice this until it touched her shoulders. She grabbed at it and held it in her hands as it grew. “My...My hair?” she asked and pulled it to make sure. It turned dark brown and grew until it was down to her butt. “No! this isn’t good! I can't be a girl with my father downstairs!…Maybe if I wait for everyone to leave?” she asked, but that wasn’t happening. So she waited but Chris, now in Karen's body, heard her father and he was getting close. She was scared and started to tear up.