I'm sorry this is so short, I didn't have a lot of time tonight and was a bit stuck for inspiration. Thanks for reading anyway!
"You'll ever guess what we're going as for Halloween!" exclaimed Erica when Derek came in to the shop to visit Stiles.
"What?"
"Catwoman and batman!" she yelled excitedly.
Derek turned to his… Stiles and groaned, "Batman, really?"
"You know you love it," joked Stiles.
He rolled his eyes in response and asked, "And how does Boyd feel about you dressing up as Stiles' girlfriend?"
"He's fine," she grinned, "Why are you jealous? Do you want to be catwoman?"
"Shut up."
Stiles and Erica laughed at him from behind the counter. Whenever he came in they seemed to completely stop working, ignoring all the customers in the shop. It was a good thing the owner wasn't around, Satomi would never let Derek get away with it.
Stiles asked, "What are you going to wear?"
"Kira wants me to be the Han Solo to her Princess Leia," he answered.
"That's a couple costume too," pointed out Erica.
Stiles wondered, "Why are none of the couples in our groups going together?"
"Because Isaac and Boyd wanted to be zombies so I got stuck with you," answered Erica.
Stiles pretended to be offended, grinning, "Well if that's how you really feel then maybe Derek should be my catwoman!"
"Like he could pull off that costume as well as I could!"
"I don't think he'd look too bad." Stiles winked at Derek whose ears turned red instantaneously.
Derek said, "I better go and let you two get back to work." He leaned across the counter to give Stiles a quick kiss and then reluctantly left.