I started to say something mean to her, then felt my clothes wiggling like they'd come alive.
"I knew it!" Mary cried, jumping to her feet and pointing at me, "It's happening to you too! My clothes changed when I got real embarrassed and so are yours!
I looked down to see my jeans settle into a pair of snug, but not overly tight jean-shorts. My shirt was now a cotton muscle shirt that showed off my chest and arms pretty well without being a skeezy mesh thing like I'd seen body builders wear. I walked over and glared at Mary. I mean, sure I did some looking, but that was no reason to pinch a guy when you knew his clothes were in trouble!
"Whoa," she said, staring at my chest, "Thats some.." her voice trailed off and as if mesmerized she reached out ran her hand down my abs. She ran her hand back up, cupping my peck for a moment, then started back down again.
"So, do I get to do some touching too?" I asked, startling her out of wherever her mind had gone.
Just as when I'd changed her skirt, as soon as my clothes had changed the other people in the park lost interest in me and were going on about their business. Only Mary had been aware of what had happened.
"I, what? Oh!" Mary blushed and put her hands behind her back. I stared at how that made her tits stick out even more. Following my gaze she saw what she was doing and blushed even more intensely. She whirled around to face away from me and crossed her arms over her chest. After a minute she must have remembered how short her skirt was because she reached down and tugged on the hem, as if pulling it tighter across her butt would be better than possibly flashing her panties at me.
It occurred to me that I hadn't noticed her panties through the side slits, and wondered if she'd been wearing any when I made my wish to increase her bust.
"I'm sorry Steven, I just... This has been a bit much to handle--I mean." Even the back of her neck was red she was blushing so hard. I tried to stay mad, but mostly I felt bad that she was so embarrassed. Besides, her petting me had felt really good. Just as well she was facing away from me, my crotch was starting to get tight again as I thought about what she'd done.