Derek and Sonya had decided to split up to cover more ground. They only had a few hours until Kevin's party and had to make the most of that time.
Derek was looking over some impressive magic staffs when he heard Sonya calling for him a few aisles away. He found her in an aisle with accessories that were either meant for a pet or for a sex slave. She was holding a black collar with silver studs and a leash.
Sonya could see he was at a loss for words. "It's supposed to shrink its wearer," Sonya explained.
"You want to have even more of a height advantage over me?" Derek smirked.
"No, I want to give you the chance to be the real top dog of the relationship." Sonya twirled the leash around as she explained. "I know you're a little skittish about having a girlfriend who's four inches taller than you."
"I told you I don't care how tall you are--" Derek protested.
"Of course you care," she continued. "We all have stupid little wants and vices. All I'm saying is, for one night, we can party like a different kind of couple."
Derek looked at the leash for a minute. "And you're fine with this? Shrinking yourself just so I can feel macho?"
Sonya walked right up to him and put the collar into his hand. "I'm more than fine with it," she whispered. Derek's face turned pink. "Besides, we can always do it the other way around later. Now, go back to looking at whatever you were looking at. I'm going to pick out some things to wear tonight, but I want to surprise you."