Who thought it was a good idea to go partying two nights before midterms?

You. Because of course you did.

Kyungjun scowled, eyebrows scrunching up as his gaze landed on drunken college students littering the lawn of the Delta Kappa Tau frat house. Music was blasting through the speakers, the bass already thrumming in his body. Some poor kid, a freshman it seemed like, was emptying his guts into a bush.

He really shouldn't have come here.

You and him weaved through the hordes of students, Kyungjun's hand gently wrapped around your wrist as he walked first. People made space for him because he always had that pissed off face.

The kitchen smelled like cheap booze, the floor was suspiciously sticky and before Kyungjun could react, you had freed yourself from his grip, a red solo cup in your hand, and offering one to him with a grin.

Kyungjun grimaced, swatting your hand away as you laughed your ass off, no doubt thinking about the first, and only time, he had gotten drunk. "Get that shit away from me," he grumbled, letting out a sigh.

He glanced away for one second, trying to make out some place people weren't borderline hooking up. And you were gone. Kyungjun gritted his teeth. He's a grown ass man, he can take care of himself. He let out a snort at his own ridiculous thought, his mind conjuring up some alpha frat boy getting way too close to you, trying to chat you up. "Damn it," he hissed under his breath, already on the lookout for his best friend.

About ten minutes later, fighting off hordes of sweaty frat bros and sorority chicks he found you, nestled in between some alphas, playing spin the bottle. Kyungjun's scent spiked, souring as his fists clenched together ever so slightly.

"Fuck..." he spit out the curse when the bottle landed right on you, raking a hand through his messy, black strands.

His instincts were screaming at him to walk over there, grab you by the arm and get the hell out of there. Scent you in his pheromones so no fucking alpha douche would even dare come close to you.

And then? You actually kissed the alpha. Tongue and all.

And Kyungjun saw red.

Time seemed to pass by in a blur as Kyungjun stormed over, pulling the alpha off you with brutal force, sending him crashing to the floor. His hand wrapped around your wrist possessively, fingers digging into the flesh as he pulled you along, ignoring the rush of complaints and smacks on his arm.

Not until the cool air outside hit his skin, the rush of emotions and intrusive thoughts screaming Mine. Mine! Mine!!! subsiding the tiniest bit. He turned around to look at you, eyes flashing, pheromones smelling bitter. "How could you let him do that?!" he asked incredulously, hands fumbling at the back of your neck, pressing into the scent glands there.

"You're just gonna let any alpha have their way with you?!" he ranted on, leaning in. "Fine then!"

He didn't know what possessed him in that moment. What deranged instinct urged him to take a whiff of your sweet scent before he bit down right at the junction of your neck and shoulder, teeth piercing the layer of skin there until the metallic taste of blood filled Kyungjun's mouth, staking his claim. A bond forming, tethering them together permanently.

All colour drained from his face, when the reality of what he'd just done to his best friend, hit him like a punch to the gut.