"You two are dating now?" asked Erica, quizzing Stiles and Derek whilst ignoring the customers in the costume shop. Derek had popped over during his break to see Stiles, he'd forgotten that Erica would be there and would have a lot of questions.
Stiles blushed, he didn't want to say yes and makes Derek feel awkward, but Derek didn't seem to have that worry.
Derek answered, "Yeah, we are," giving Stiles a smile to check it was okay for him to say that, Stiles beamed at him in response.
"You two so are cute!" exclaimed Erica, then she turned to Stiles and demanded, "Is he taking you to homecoming?"
"Homecoming?" Derek hadn't been told about homecoming yet.
Erica informed, "It's on Friday and it's Halloween themed."
"You don't have to come, I wasn't even going to go," said Stiles nervously, "It's just a stupid high school dance."
Erica glared at Derek as if to say 'you better take him or else'. Slightly terrified he took her advice.
"I don't mind going," smiled Derek.
"Oh okay, if you're sure."
He nodded, "Yeah, it'll be fun."
Erica resisted the urge to squeal at how cute they were, instead she said, "That means we need to get two costumes, one for Friday and one for Kira's."
"Kira's?" asked Stiles.
"Do you guys not tell each other anything!" yelled Erica, "Kira's parents are going to New York next weekend and she's home alone so she's having a Halloween party."
Derek told him, "Kira was going to invite you anyway but we can go to that together too."
"Okay, sounds good."
Derek left to go do his job and Erica grinned at Stiles, "You two are ridiculous, what would you do without me around to organise your social lives?"
"We've done alright so far!" protested Stiles.
She rolled her eyes in response and then went to actually do her job and help the customers find costumes.