When we got to Karyn's house, she led me up to her room. Then she looked me in the eye and said "Okay, Jon, strip."
"Pardon?" I said.
"Take your clothes off. Let me see you," she said.
"Why?" I asked.
"Because it's only fair. You get to see me naked, so I should get to see you naked."
"I thought you weren't embarrassed about that now," I said.
"I'm not embarrassed," said Karyn, "Just pissed off. Now strip."
I looked at her. "I don't want to," I said.
"Fine," said Karyn, snapping her fingers. "Concentrate on having balls that are painfully crushed by your underwear."
"AAAAaaaaaaOOOhhhhhggghh!" I groaned, as my balls suddenly felt like they were being crushed in a vice. "Make it stop!"
Karyn told me I could stop concentrating, then repeated her earlier order. Reluctantly, I pulled my clothes off. Finally, I stood before Karyn, completely naked, trying to hide my limp cock with my hands.
"No being modest," she said, and I moved my hands away.
"It's not very big, is it?" Karyn asked, looking at my penis.
"It's just cold in here," I said, concentrating on having a bigger dick.
"No, no, no," Karyn said, snapping her fingers. "Concentrate on having a little cock."
I tried thinking about my cock getting bigger, but all I could picture was it getting smaller. I looked down and felt my face turn red as I saw my penis shrinking into my pubic hair. Karyn laughed.
"I didn't mean for you to make it that tiny," she said, "But keep it that way for now."
She walked around me, examining my body critically. "You boys don't seem to have to worry about body hair like we girls do," she said, snapping her fingers. "Concentrate on having a hairless body."
I looked down and saw the hair vanish from my nipples, and the treasure trail leading down from my belly faded an instant later. My pubic hair vanished, leaving a thin, short cock hanging out in the air atop my balls, which looked huge by comparison. My dick wasn't more than two inches long; I didn't remember seeing it like this since I was a kid.
"Hmm, not bad," said Karyn. "You know, it seems that women always get judged by their bodies, but men are allowed to be a bit out of shape, like you, and nobody cares. Concentrate on having a competitive swimmer's muscles."
She snapped her fingers and my whole body tightened up and toned up. I looked amazing, except for my tiny penis.