...A dress. "Are you happy now?" Dean asked.
"You look ridiculous!" Mark said laughing.
"I feel ridiculous" Dean said. "I'm going to get you back for this."
The dress Dean had on did indeed make him look ridiculous. The hem of the dress came down to his knees. The top was stretched tight across his muscular chest.
"You know how difficult it was getting on?" Dean asked. "I thought that I was going to rip it. I don't know how I'm going to take it off without ripping it."
"Oh come on" Mark said. "You got it on just fine. You can take it off without ripping it."
"I hope you're right" Dean said. "I don't want to end up buying this dress. I don't have anyone I could give it to. Besides, how would I explain how it got ripped?"
"Well you can take it off now" Mark said.
"Just you wait" Dean said as he walked back into the dressing room. Unknown to him his body had been slowly changing since he had put on the stupid dress. His body hair had been receding into his body and his skin was becoming softer. As he looked into the mirror he thought 'That Mark is going to get his. I hope that I don't rip this dress. I think I'll need to buy it since it seems to have stretched out, it isn't as tight as before.' The dress wasn't as tight since his body was now slimming down and shrinking. For some reason he couldn't look away from the mirror or stop staring at himself in it.
Dean raised a hand up to his face and thought 'That new razor is very good. I don't even feel any stubble.' His changes were coming faster now. His Adams Apple shrank. His hands became more feminine with his fingernails growing past his finger tips. His hair grew longer to a medium length and his face rearranged itself into a more feminine form. His hips widened a bit while breasts started to grow on his chest until they were a B cup. They final change was his male genitals reforming into female genitals.
The dress now fit Dean perfectly. He didn't see it but his clothes changed into their female counterparts. His boxers shrank and changed into pink panties. A pink bra formed on his chest supporting his new breasts. A purse appeared on top of his jeans and shirt which hadn't changed much except for changing to fit a girl and his pants had changed into shorts. His shoes turned into sandals while his socks simply disappeared.
Now the mental changes started to kick in. Dean was now Deanna and she was fourteen. Her friend Mark had dared her to put this dress on knowing that she didn't like wearing dresses. 'Maybe I'll ask Mom to buy this for me. I don't look that bad in it.' She took off the dress and put on her shorts and shirt. In the back of her mind she knew that she wasn't a girl but a guy instead. From that part an idea came forth. She would get back at Mark by daring him to try on a...