Two of a Kind

Am I flirting back?

Derek watched as Spencer laid on his bed half naked while Stiles fussed through his closet.

"Kai's gonna flirt with you so you have to look nice," Stiles pulled out a plaid button down, "Here put this on," Stiles threw the cloth at his brother.

"You know I can wear my own clothes," Spencer rolled his eyes.

"Jackson and you dated for like six months, he can't know you're not me," Stiles huffed before throwing a white t shirt next, "Put this under it."

"You're really gonna pretend to be Stiles?" Derek asked with a raised brow.

"We do it all the time," Spencer said as he tugged on the white material.

"Really?" Derek didn't know why he was surprised by that.

"Sure, he went to my American Lit class for me today cause I haaate literature, but it's a prerequisite for my degree. He hates math, so I go to his math classes for him. Even trade. The teachers have no clue. We used to switch back in high school too," Spencer rattled.

Derek only nodded. Before looking at a nervous Stiles. He had a pen seated between his lips as he studied his brother's outfit.

Derek couldn't help but watch the way Stiles' lips curved around the writing utensil.

"So, am I flirting back or what?" Spencer asked, shoving his phone in his pocket.

"What?" Stiles frowned, clearly thrown off by the question.

"Kai obviously likes you, so am I flirting back?" Spencer clarified.

"Don't be me, be you," Stiles shook his head.

"I can't be me, Jackson will know," Spencer pointed out.

"Damn it," Stiles swore under his breath, "Fine be me, but don't flirt."

"Really? Why not? I saw him earlier, he's hot," Spencer whined.

"Then you can flirt with him, later," Stiles rolled his eyes.

"Oh come on, why not indulge?" Spencer pressed, "Is it really cause he's a hit it and quit it type? Cause those can be fun you know."

Stiles didn't look amused, "Just go and act disinterested," Stiles pushed his brother towards the door.

"Fine, but if I throw up the bat signal you come save me," Spencer pointed at Stiles with a warning look.

"Yeah, yeah," Stiles rolled his eyes as he closed the door.

"You're really not gonna humor Kai?" Derek asked curiously.

Stiles' bit down on his pen once again as he shook his head.

"Any particular reason?" Derek asked trying not to seem as interested as he was.

"My last relationship ended on a... sour note," Stiles shrugged, allowing the pen to fall from his lips.

"I'm guessing you didn't end it?" Derek could see Stiles' discomfort as he shifted from one foot to the other and back again.

"No, I did," Stiles nodded sadly, "After I found out he tried to make a move on Spencer. Apparently, he preferred my brother."

Derek's brows rose in shock. Stiles didn't seem like the type to date jerks.

"Anyway, that was like three months ago, I know I should be over it by now, but I'm just a bit gun shy," Stiles chuckled nervously.

"I'm sorry to hear that," Derek could relate to sour relationships.

"What about you? Anybody special in your life?" Stiles was clearly not wanting to talk about him anymore.