"Wear this dress!" Mark said with glee pointing at the mannequin wearing the black and white striped mini-dress.
Dean screwed up his lips, "My junk will probably show?"
"Then wear panties, Dean! I dare you."
"Fine, Mark. I'll put that dress on, if you wear that dog harness that goes with it."
Sure enough the mannequin held a leash to a black and white striped spandex dog harness that a mannequin shaped like a Great Dane was wearing.
Mark laughed, "Talk about junk showing!"
"Only in the dressing room, I'll wear the dress, you wear the dog harness. I'm sure you show up with that under your clothes, Tina will find you sexy."
"Haha. Alright, I'll try the dog harness, you put on the dress."
They each took a black and white striped outfit and entered the dressing room area. Dean took the dressing room on the right. Mark took the one on the left.
"I'm not coming out," said Mark, "You come in here!"
"You're wearing the harness? I gotta see this."
"Only if you're wearing the dress," Mark admonished.
"I've almost got it on. Good thing it's a stretchy material - ugh, how do women work the zippers in the back?" Dean asked.
"Come in here, and I'll zip you."
"Okay," Dean said. He cautiously opened the dressing room door. No one was in sight. He darted across the hall into Mark's dressing room.
Mark was naked except for the harness. He sure looked hairy all over, and Dean said, "Mark, you ever consider getting waxed?"
"Hah hah, now turn around so I can zip you up, and then you can buckle my harness."
The moment the zipper clicked, Dean felt different. The dress went from fitting wrong in all the wrong place to a perfect fit.
"Oh, my! This dress does look good on me," Dean said in a voice 3 octaves higher than normal, as he gazed at his now feminine form in the mirror.
"What the-?" gasped Mark staring at the reflection in the mirror over Dean's shoulder. "Must be a trick mirror?" He stepped in front of Dean without looking at her, and reached out to touch the glass. ust be-yelp!" he yelped as Dean buckled his harness and attached the leash. Mark watched as his body was covered with fur, his nose and jaw jutted out from his face to form a muzzle, his ear moved to the top of his head, and his human pubes vanished. His cock popped major wood turning bright red and triangular before receding into a furry sheath, as Mark lost his footing on his hind legs.
"That's better Marquis!" she exclaimed as Mark dropped to all fours and completely transformed into a canine. He could sense something was wrong, but the dog wasn't sure what it was. He was with his mistress and they were out shopping. The harness seemed comfortable enough, and his mistress seemed happy, but Marquis was sure something was wrong and started to whine.