"You hired out a werewolf bikini to my wife, earlier - did you not?" John asked the clerk behind the shop counter.
The young man smiled in response. "I believe that's what she left with. And as you can see...," the clerk glanced at the wolf woman sniffing the costumes on the rails near to the counter, "...our materials are the genuine magical article! I trust you are both satisfied?"
"Well, sort of." John considered his next words, then plucked up the courage to speak further. "Do you have the same costume, in a man's fit?"
"Indeed, we do! One moment..." The clerk dashed towards the back of the shop and returned with a pair of shorts, made of wolf fur. "One size fits all, sir!"
John took hold of the shorts, and brushed the rough fur thoughtfully. He fingered his neck, where Carrie had nipped him - then turned to his wife, who gave the shorts a glance. She grinned, and managed to nod her approval.
"I'll take them!" John paid the asking price.
As the clerk closed the till, he grinned at John and Carrie. "If you like, sir - since the moon's already up, you can leave all your clothes and the lady's handbag in the changing room. I'll shut up the shop, so that you're not disturbed. When you wish to be embraced by the moon, just step through the side door. It'll take you to an enclosed grass courtyard. I'll lock myself upstairs, and do the accounts for today."
"Er, okay then." John's heart pounded as he walked over to the men's changing rooms, and took off all his clothes, before slipping on the fur shorts. They felt right on him - somehow the waistline was adjusting itself to hug his genitals and narrow hips. Suddenly, the garment merged into his skin - like water draining down into the hold of a bathroom sink. John glanced up at his reflection in the mirror provided - and saw his eyes flash yellow, before returning to their human colour. For a moment, he felt aroused - then John became composed, and very calm.
Eagerness, and a new hunger, began to spread through him. John beamed as he left the changing room, in the buff. The clerk had now gone upstairs, having locked up behind him.
John sniffed as Carrie loped over to him. She was exited - he could tell that not just by the way she moved, and her open-mouthed, panting, expression; but also by the change in her scent...
"Are you ready...John?" Carrie growled at him. She held out her forepaw.
He nodded. "Absolutely." He took her paw in his hand. They walked over to the unlocked side door.
Switching off the last light in the shop, the couple opened the door and stepped outside into the grass-covered courtyard, where a willow tree stood in the centre.
John shivered at first in the cool air - then he stepped forward into the beautiful moonlight, with Carrie by his side. His heart began to race with anticipation of the change to come.