Not long later

I looked through the bundle of clothes Karyn handed me. A heather gray spaghetti strap tank top and a pair of small orange shorts. At first I was slightly worried that her mischievous side would come out, and Karyn would try to embarrass me. I slipped on the shorts. The crotch was a bit tight, and the seam pinched me where I don't like to be pinched. I shrugged into the tank top. It was really tight on my stomach and loose at my chest. "Karyn, this isn't working!" I called through the door. She barged right in. As soon as she saw me, she snickered. "You look so silly, Jon. Those shorts aren't going to work, but I think I have an idea." Karyn opened wiggled out of her blue skirt. She handed it to me, and continued, "You've got long hair, so I think this might work. No one will look at you twice, I promise." Knowing I could easily fix all this once I got home, I headed for the bathroom to change into Karyn's skirt. Before I could close the door behind me, Karyn barged in, still clad only in her pale blue panties and a blue tank of her own. She looked down at my erection bulging out of her orange shorts and giggle. She handed me a pair of white cotton panties. "These should keep things under control, too." I turned my back to her and pulled off her orange shorts. I passed them back to her, and I could hear her putting them on behind me as I stepped into the panties. Then I slipped into her blue skirt and turned around. Karyn was already fully dressed. Karyn spent a few minutes painting my face with her make-up, then she looked at me. She giggled again. "Jon, you still look kind of ridiculous. I can fix it. I can completely remember the first spell I tried. But you'll be stuck until midnight tonight." Not thinking, and therefore not realizing what the spell was, I told her, "Go for it." Karyn mumbled for a few seconds under her breath, then pointed me towards her closet doors, which were mirrors. I saw Karyn in her blue tank and orange shorts, and some other girl with red hair wearing a gray tank and Karyn's blue skirt. I looked down at myself. I had boobs! Big ones! I lifted them a little, and Karyn giggled again. She lifter her own boobs a little, looking at me in the mirror.