AU in which you are bitten by werewolf Kyoutani
Requested by @America-san
Disclaimer: I don't know what werewolf transformations are like so I'm just gonna wing it. Don't hate me if I mess up.
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How was it that you'd worked in the same national park for weeks yet still forgot how to get back to your station so often?

You'd really chosen the wrong time to get lost. The sun was setting and the sky was almost completely dark. The tall trees around you seemed to watch you as you held your lantern with two trembling hands and clumsily stumbled down a forest path that you used quite frequently. Even though you'd been down this path many times before, your footsteps were always more unsure in the dark.

The sound of a wolf howling off in the distance made you jump slightly before picking up your pace, not caring at how loud the leaves beneath your feet crunched. The chill of the night seemed to bite through your jacket, and you nervously pulled it closer to you, feeling your cold park ranger badge brush against your hand.

A few weeks ago, you wouldn't have minded the sound of a wolf howling. Wolves were common inhabitants of the park—everyone knew that. But what you hadn't known was that there were werewolves hanging around. You hadn't known that until you'd been drawn out of your station in the middle of the night by a gunshot only to find a dead werewolf underneath a tree. The only strange part about that incident was the fact that the body had disappeared by the time you'd called other rangers out to investigate, and that had made you wonder if you'd dreamt up the creature in your drowsy state.

Despite the fact that you'd mostly convinced yourself you'd been dreaming, the idea of werewolves hanging around the park totally freaked you out.

I just gotta get back to the station... There it is, you thought once you'd noticed a light not too far away, atop a small hill. Feeling a wave of relief wash over you, you rushed over to the hill.

Before you could make it to the grassy slope, however, you were scared out of your mind by a shadowy figure that appeared out of the corner of your eye. Without giving you any time to react, the shadowy figure launched itself at you, tackling you and sinking its teeth into your shoulder, making you cry out loudly in pain and terror.

Upon hearing your scream, your attacker backed off of you and looked down at you, revealing their face for you to see. You saw a pair of brown eyes staring back at you, and your gaze shifted to the person's short, blonde hair with easily recognizable brown stripes.

"K-Kentarou?! What the hell are you doing?!" you gasped as your heart began to pound heavily and painfully in your chest. Of all people, you would've never expected your fellow park ranger, friend, and crush to attack you like this.

Kyoutani didn't respond, and you felt even more concerned when you noticed sharp teeth tinted red with your blood when he opened his mouth slightly. "Ah, shit..." he mumbled under his breath as he got up off of you and kneeled down beside you instead.

"Kentarou... What's ha—"

"How many fingers am I holding up?" he asked and placed his hand in front of your face. Before you could respond confidently, you were overcome by a wave of dizziness, and your vision became hazy.

"Oh god... W... What is going... on...?" you wondered as you put your hand over your face and closed your eyes. At first, you thought you were having a panic attack, but the way the wound on your shoulder was throbbing painfully was making you feel even more uneasy.

When Kyoutani noticed your pallor, he carefully picked you up and carried you up the hill that led to your station before walking inside and plopping you down on your bed. He then wrestled your lantern out of your cold and clammy hands, and reached for the buttons on your uniform shirt.

"Woah... hold up," you objected and pushed his hands away from you, "Tell me what is going on! Why the hell would you just... jump out of nowhere and bite me? What is wrong with you?"

Kyoutani sighed with irritation and slumped down into a chair after he brought one over next to your bed. The way he stared at you with such a burning rage reflected the anger he felt towards himself rather than any emotions he felt towards you.

"I thought you were someone else," was his rough response after a few moments of tense silence. The expectant and bewildered look on your face prompted him to continue. "There have been some annoying werewolves wandering through my territory and I thought you were one of them from a distance, okay?"

Your (e/c) eyes widened with shock as you gazed at him, only averting your attention to the tooth marks in my shoulder. "Does that mean... you're a werewolf...?" you inquired timidly, looking back up at him again.

He closed his eyes and nodded before adding, "And you will be too... Sorry about that." The whimper that escaped your mouth made his heart ache. He didn't usually feel remorse, but you were the only person he really liked, and now he'd gone and done something that would most likely make you hate him forever. "If you want me to go, I'll just—"

"I don't want to be alone!" you interjected quickly and grabbed his arm, crying out in pain slightly when your wounded shoulder moved, "What's going to happen to me?!"

"You're going to become a werewolf... I said that..." he told you as his usual look of annoyance returned to his face.

"I know that, Captain Obvious; I'm asking about the process!"

Kyoutani pursed his lips as he removed your hand—which was now starting to sprout fur—from his arm. He then pulled the covers of the bed over your body and sighed, "Well, it's a full moon, so you're going to go absolutely insane once you turn into a werewolf. Most likely, you'll end up naked in the middle of the woods somewhere without a clue about what you did tonight."

Your face heated up as you blushed profusely at his comment. "W-What?! How do you know that?!"

"I've been a werewolf for a long time now and no matter how well you can control your powers, you'll end up lost, naked, and confused the morning after a full moon. I can guarantee it. Besides, you're new to this, so your clothes aren't going to survive the transformation. If you don't want them to end up ripped, I suggest you take them off," he explained.

In a different situation, you wouldn't have been so hesitant about removing your clothes, but you still took his advice and undressed yourself under the covers after you'd made him turn away and give you privacy. Once you were naked, you could clearly see the transformation rapidly taking place, and you could feel aching pains as the structure of your body changed into that of a wolf.

"Why aren't you naked?" you questioned Kyoutani without thinking.

"You're so impatient, as always," he responded with a hint of a teasing tone as he promptly began to strip off his clothes in front of you. Upon realizing that he wasn't going to stop, you grabbed a blanket lying over the covers and threw it at him so that he'd have something to cover himself up with. You then closed your eyes and covered them with your hands—which were now furry paws.

"Are werewolf transformations always this painful?" you wondered softly as the aches escalated into sharp pains that resonated throughout your body with every beat of your heart.

"Only the first time."

Once he was decent, you kept your gaze on him as if to comfort yourself, but you couldn't hide the pain you felt, and you ended up squeezing your eyes shut. Kyoutani reached out towards you and unconsciously started stroking your (h/l) (h/c) hair until it turned to fur and a pair of wolf ears sprouted from your head. He felt his own body transform rather painlessly, but the expression on your face reminded him of his unpleasant first transformation, and he felt the need to soothe you.

Eventually, you took on the form of a large and strong wolf, and howled loudly, only stopping when Kyoutani placed his hand on the side of your furry face and gazed into your eyes.

"(F/n), now that I've turned you into a werewolf... will you be my mate?" he asked boldly.

You watched him for a few moments as his body finished its transformation into that of a wolf's before nodding and accepting his request. After climbing out of bed, you walked over to him as he hopped off his chair and nuzzled his face with your snout as a sign of the affection you felt towards him. He returned the favor before heading over to the door and running out of the station, taking you with him to enjoy a night that neither one of you would remember.

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Bonus ending!

Upon waking up the next morning, you found yourself lying in your bed with the covers pulled up over your naked body. You wondered for a moment why you weren't cold, but soon discovered the answer when you realized that Kyoutani was snuggled up next to you with a body as bare as your own.

"K... Kentarou...?" you whispered and shook his shoulder gently until he woke up with a loud groan.

"What do you want so early in the morning? Go back to sleep..." he grumbled and pulled you closer to him until your body was pressed against his, making you blush.

"What happened?"

"What do you remember?"

You wracked your brain for an answer as you rested your head on his shoulder. "I remember you asking me to be your mate and me saying yes. I don't remember anything else."

Despite the fact that he'd seemed irritated with you, he tilted your chin up towards his face so that he could plant a kiss on your lips. "Good. That was the only thing that was important."

After exchanging a few kisses, you pulled away from him slightly and asked, "Do you remember why we're sleeping together?"

"It's not a result of what you're thinking of, that's for sure."

"Then what happened...?"

"I was cold."