For normal people, Derek and Stiles’ relationship is probably weird. Not the whole supernatural drama that defined Stiles’ teen years and brought the two of them into each other’s orbit, but the fact that they dated for six months, broke up, and still hang out all the time.
The dating itself was probably the weird part, in the grand scheme of things. It started right after Derek’s 33rd birthday, with some mistletoe and a drunk kiss—which escalated into drunk sex. Eventually there was some sober discussion and sober sex, and they agreed that they were old enough and things were settled enough to try a real relationship.
It didn’t last that long. Derek probably should’ve seen that coming, given how…human Stiles is.
So they’re back to being friends, have been for almost a year now. To be fair, the only things that have really changed since they broke up are that they don’t have sex anymore, and Derek makes Stiles pay for his own share of food when they order in. Other than that, they’re still just as close; Derek lives upstairs from him and they see each other almost every day, eat dinner together almost every night, play video games together, even work together sometimes. They’re good, and it’s not weird to them.
But Stiles is a little bit weird. So their interactions can be…confusing at times.
This particular Friday evening, Derek is planning on knocking on Stiles’ door to see if he wants to get a pizza. When the door swings open, he’s surprised to see a pink-faced Stiles, looking at him with wide eyes.
“Derek!” he says in a too-loud voice. “Thanks for dropping by, babe, but Dad and I are gonna have a father-son night, so I’ll text you later, okay?”
Derek’s mouth is already forming around the word babe when Stiles darts forward and kisses him on the mouth. It’s chaste, only a peck, but it’s so surprising that Derek’s lips fall open and—well, he kisses back a bit.
If Stiles notices, he doesn’t say anything about it. Instead, he pats Derek’s chest and says, “Don’t wait up!”
“Don’t be rude, Stiles,” John Stilinski says as he comes around the doorframe. “Nice to see you, Derek—how long’s it been?”
“Uh, since Stiles’ birthday probably. Nice to see you too, John.”
“You wanna come to dinner with us?”
“He can’t!” Stiles interjects. “He has plans with Kira, don’t you? He was just dropping by to say hello.” Stiles pats his arm, squeezes pointedly. “Such a nice guy, my Derek.”
“One sec, Dad—Der and I are just gonna—one sec!” He drags Derek out into the hallway, closing his apartment door behind himself. “C’mere,” he hisses, pulling Derek toward the stairwell by his jacket.
“What the hell is going on?”
“Shut the fuck up for a minute, would you?” Once safely tucked away in the stairwell, Stiles drops his grip. “Don’t freak out on me, I didn’t think he would run into you while he’s here—we’re just grabbing dinner before he and Mel go down to Oxnard for the week.”
“Sure,” Derek says, “that explains everything.”
Stiles rolls his eyes. “Look, a couple weeks ago, my dad was—he was having a time, okay? He was lecturing me about my dating life and how he wants to have grandkids before he dies, and he got all emotional about my mom and—I’m not good at handling that, okay?”
“So you what? Told him we got back together?”
He shrugs, avoiding Derek’s gaze. “He loves you, okay? When we broke up, he was so pissed at me, and I just—I wanted to make him happy. Why not let him believe a little white lie for a while, right?”
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this fic's got everything: getting back together + fake dating + canon divergence + wolfing out during sex + yearning derek