I felt myself being twisted around and then the sensation of my flesh being pulled apart. Too late I realized that my clothes could get in the way. I managed to get my pants, underwear, and socks off, and reached for my shirt. Another pair of hands reached for my shirt too. There was someone else with me and the shirt was stretched out over both of us!
I said "Are you..." and at about the same time the other person said the same thing. We somehow managed to struggle out of the shirt and I found myself face to face with a person who looked just like me.
"It worked!" he said.
"It sure did," I replied.
"How do we explain this to anyone else?" I asked.
My double shook his head. "Beats me."
It was awkward because I never did decide what I was going to do once I had managed to become two people. We had some dinner, after flipping a coin to decide who gets to make it. And watched some TV. For us to both go outside was a risk and we didn't want to have one go outside and one stay home.
We went to bed--it was very awkward having two people in one bed, even two people who are exactly the same. It was especially awkward when I tried to masturbate... we looked at each other and tried to masturbate each other for a little while, but we weren't really gay and it felt too strange.
Next morning the 12 hours was up. "Uh... brother... we can change back now. I think."
"We hardly did anything brotherly," he said, "and we were thinking of trying other changes."
"Yeah," I said. "I don't even know if we can change into one person anyway. There are plenty of other things to try. Let's flip a coin again and transform one of us. At least we could go outside without having to tell people why there's two of us."
"Right," he said. "I'll take, uhh... heads, I guess."
"I'll take tails," I said. "Whoever comes up gets to transform the other one."
I flipped the coin and it came up tails. "Okay," I said. "Here's what I transform you into...."