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Full moon. He couldn’t exactly see it, since it was raining outside, but he could feel it. He could feel it deep inside his bones, the energy calling for him, for all creatures of the night.
He sighed loudly, wondering if he did the right thing. His boyfriend was asleep, agitated, whining and sweating like he was in pain, and Katsuki knew he probably was. He was no werewolf expert, but he knew the basics; that came with being an old as fuck vampire who had the time and will to read a lot about the supernatural.
It was all Shouto’s fault, really. If the idiot didn’t try to follow him during the night, to find out what secrets Katsuki had been hiding from him, he would still be a human. A blessed and ignorant human, without knowledge of the supernatural, of the monsters that lived in the night. Of what Katsuki was.
Maybe it was kind of his fault too, for falling for a human in the first place. It was not like he could help it; Shouto was like everything he ever again wanted, like his biggest fantasy came true.
Katsuki had been careful, he really had; never feeding on Shouto (and damn , he was always so tempted), never meeting with him in broad daylight, never inviting him for dinner or meals in general. So, he could understand that Shouto got hurt, that the half and half bastard thought that Katsuki only wanted him for sex.
He was a vampire, damn it, but how the fuck could he tell his boyfriend that ?! “Hey, fuckface, I’m a motherfucking vampire, I suck blood for a living, and I kinda love you” didn’t sound like a very good idea.
So when Shouto followed him around (and Katsuki noticed it, because he notices everything) , he tried to distract him. He tried to take the long way home, tried to do the best thing for his idiot of a boyfriend. But of course , a rogue Alpha had to attack Shouto and give him the bite without his consent. Of course.
So, now he had a hot boyfriend who was also a werewolf without a Pack. He made Katsuki his Pack, and that stupid ghost that haunted Katsuki’s house, Kirishima. As well as Deku, the motherfucking witch that lived nearby and liked to flirt with the ghost. It gave him the creeps , but he was not going to judge people like that, his mom taught him better. Even though she has been dead for centuries and Katsuki had been alive for more years than people could usually count.
But now, his boyfriend was going to experience his first full moon and Katsuki was so not ready for that. He read about it in all the books Deku gave him about werewolves. He was a genius, so he knew what he had to do. Still, it felt weird as fuck, since he was a bloody vampire , having to act like a mother to his hot werewolf boyfriend.
“Fucking half and half...” he grumbled, annoyed and endeared at the same time.
Shouto was having a hard time there, breathing hard, almost tearing Katsuki’s sheets with his claws. He was probably in a lot of pain, so Katsuki sat by his side, petting his beautiful dual colored hair and frowning as he watched the mess that he used to call a boyfriend writhing in his bed.
“Water...” Shouto begged, a clawed hand touching Katsuki’s thigh. It marveled him that the idiot still managed to be gentle, even though he was on the brink of losing control.
Katsuki already knew he was going to ask for water, and eventually food. So he kept everything at hand, because he was no idiot and leaving Shouto alone was out of question. He filled a glass, giving it to the werewolf and watching as he drank the whole thing in one single gulp.
“Dude, he looks like shit...” Kirishima said, appearing out of nowhere and scaring the shit out of Katsuki.
“Shut the fuck up, you useless ghost! Of course he does!” he yelled back with a mean glare.
“Whoa, no need to get all protective, bro. I’m just worried.”
“Go be worried at your boyfriend’s house and get away from my sight!” Katsuki screamed, pointing a finger at the ghost and ignoring the hurt look he got in return.
“He is not my boyfriend! That was mean, you know he’s not my boyfriend.” Kirishima pouted, crossing his arms in front of his chest in a defensive position.
“Just because you are a whiny bitch who can’t take the initiative. That fucking Deku has been hiting on you for ages now and I’m sick of watching it all! You better go get him and do something about it or I’ll beat your fucking ass!”
Shouto decided to choose that moment to moan, a pitiful sound that broke Katsuki’s dead heart all over. He turned to look at the werewolf with a worried frown, noticing that his whole body was starting to change.
“Sho?” he asked in a small voice, touching his boyfriend’s forehead and noticing how hot his body was.
It seemed like the werewolf was indeed overheating, because he started ripping his own shirt off, hurting his skin in the process even though it healed right after.
“ Shit! ” Katsuki hissed and Kirishima made a startled sound, muttering about something the blond couldn’t care to hear.
Shouto’s whole body began to transform into an almost full wolf, so fucking huge that Katsuki’s eyes widened in shock. He had never seen his boyfriend’s wolf form and damn , that was hot. Not hot because Shouto looked pretty, he didn’t, he looked hideous , but… he looked powerful . So fucking powerful that it felt like the moon was feeding him, making him grow and get muscles and fur and claws and teeth.
Katsuki really was not ready for that.
The werewolf before him climbed off the bed, howling loudly and almost making Katsuki go deaf. He covered his ears, noticing that Kirishima, the fucking coward, was gone . He didn’t know if he should be thankful for that.
Shouto sniffed the air, loudly, like a goddamn predator, and he stopped right in front of Katsuki, those mismatched eyes gazing into his very soul.
“ Mate. ” The wolf growled, approaching Katsuki and sniffing his neck before letting out a loud purr. It was kind of adorable.
“Yeah, yeah. Give me some fucking space, you are drooling on me, you giant puppy,” he grumbled back, touching that surprising soft fur gently.
Shouto’s fur was basically like his hair. Half of him was silver white, like the moon herself, while the other half was a deep shade of red. It was beautiful, and a bit terrifying.
“ Mate! ” Shouto hissed more urgently, like it meant something, and Katsuki stared at him like he was stupid.
“The fuck?” he asked, trying to remember shit from those books he read.
Well, that mate bullshit meant that Shouto really loved him, right? That was kind of sweet, but his boyfriend was currently very furry, very clawy and Katsuki didn’t care much for that. He liked skin, nails and normal teeth, thank you very much. But what the hell should he do? Shouto was getting restless, growling and whining, and Katsuki was worried and annoyed at the same time.
“Dude, Izuku said you should let him chase you, feel in control, you know?” Kirishima reappeared out of thin air and Shouto started growling at him, standing between the ghost and Katsuki with a furious expression. “Uh… or not?”
Katsuki laughed, delighted, petting his boyfriend’s ears to show his appreciation. Really, this was hilarious. Puppy Shouto was trying to protect
him
, a fucking old as time vampire, from a bloody
ghost?
Precious!
“Good boy. Tear his ethereal throat apart. With your teeth.” He purred, patting Shouto’s head, much to Kirishima’s dismay.
And his boyfriend’s tail started wagging, thumping at the ground while his growl doubled its intensity and the idiot looked really pleased with himself, puffing his chest at the praise. Like a Hell Hound, ready to pounce and kill at Katsuki’s very order. Hot, but really cute.
“Bro, make him stop, this is getting quite uncomfortable.” Kirishima whined, looking kind of scared, even though Shouto couldn’t hurt him even if he tried. The moron was already dead, after all. “Hey Shouto, we bros, remember? Pack. Me and you. Pack bros.”
The word pack made Shouto tilt his head to the side, trying to scent the air and failing, since Kirishima was a motherfucking ghost and smelled like nothing. The werewolf started whining, looking at Katsuki in confusion and burying his face in the vampire’s neck, nuzzling into it fiercely, like his life depended on it.
“Hey, hey, calm down, moron. The ghost is Pack, okay? He’s an idiot, but he means no harm,” Katsuki explained, playing with Shouto’s ears to try and calm him down. And just because he could. Those damn things were soft and fluffy like hell, Katsuki really couldn’t stop himself.
“Oh,” Shouto replied, relieved, letting go of Katsuki and approaching Kirishima with a curious look.
He tried to touch the ghost, no doubt to scent mark him since he was Pack, but his hand went through and Shouto’s eyes widened in pure shock, his wolfy brain not grasping the meaning of dead thing floating around.
Shouto whined again, a pitiful sound, like he had killed someone’s firstborn on accident, and Kirishima solidified himself just so they could touch each other. The fucking ghost had tears in his eyes, so moved by Shouto’s gesture that Katsuki was sure that if he could, he would be crying just like that damn Deku did every single day. Like a goddamn baby.
“You can try again, I have special powers!” Kirishima said, laying a hand on Shouto’s shoulder just to prove he was solid. Fucking moron. “See?”
“Special powers my ass! You are just a stupid ghost! He’s not a fucking child that you can impress with your cheap tricks!” Katsuki yelled to try and hide his jealousy over the fact that Shouto was touching Kirishima’s shoulder and arm rather curiously. Too curiously .
His yell seemed to have disturbed Shouto and his furry boyfriend started growling once again, jumping in front of Katsuki in a protective stance and glaring around the house, sniffing the air like the predator he now was. The door opened and an out of breath Deku entered, gasping and red faced, like he had ran a marathon to get there. Despite having a broom. That could fly. Because was a fucking idiot.
“I’m here, I’m he- woah, Shouto, you are huge! By the gods, I didn’t know he would get this big! No wonder Kiri was so spooked, I completely understand it now, he is the size of an Alpha. Which doesn’t make sense, since he didn’t kill any Alpha nor he had Alpha powers passed to him, so it must be something related to-”
“Shut up!” Katsuki growled, sounding almost like Shouto but it lacked the animal flavor to it. Maybe he needed to practice, but his boyfriend’s background noise helped a lot, because Deku jumped like a scaredy cat, holding onto Kirishima and putting a hand on his own heart in pure fear.
“Kacchan! Don’t scare me like that! We are dealing with a serious matter here and Shouto needs help,” the moron started, trying to hide his embarrassment with a frown, but not letting go of the stupid ghost. Katsuki really thought they should get a room, but Deku was right. They were dealing with a problem and Shouto needed them.
“You talk too much.”
Shouto was still growling, trying to hide Katsuki’s body behind him and glaring at Deku with the power of ten thousand suns. Katsuki decided to touch his boyfriend’s shoulders, massaging him to calm that giant puppy down.
“The green haired little shit who smells like mud and pot? He’s also Pack,” he said softly, making Shouto look at him with wide eyes.
“Pack?” The werewolf questioned, his face all vulnerable and
cute
and that made Katsuki’s dead heart go all crazy inside his chest.
“I don’t smell like pot!” Deku exclaimed, outraged, while Kirishima snickered behind him. “What? I do not!”
Shouto ignored it all, approaching Deku and sniffing at him with a serious expression. “Mate says you are Pack.”
“Mate, huh? Well, I am. We all are Pack here, Shouto, and we are here to help anchor you.”
Deku was smiling and Shouto was looking at him like the green haired moron was some kind of angel or whatever, and Katsuki crossed his arms in annoyance, feeling jealous all over again. For some reason, the werewolf seemed to sense his uneasiness, because he turned to Katsuki with a frown, burying his muzzle in the blond’s neck and whining lowly while nuzzling his skin.
Katsuki hugged him in surprise, petting Shouto’s fur calmly. “I’m here, puppy, everything is fine.”
“Mate is upset.” Shouto whined, holding Katsuki closer like he was trying to fuse their bodies.
He really shouldn’t be surprised that the fucking werewolf could smell his emotions. And he really shouldn’t be surprised when Shouto picked him up, like a sack of potatoes, carrying him around the house like Katsuki weighted nothing.
But he was. He was surprised and very pissed.
“The hell are you doing?! Put me down!” Kasuki yelled, his face red in embarrassment as he heard Kirishima laughing hard at his predicament. That fucking backstabbing ghost!
“No. Mate upset.” Shouto replied, like a goddamn caveman, and Katsuki shouldn’t find that endearing. Not when his ass was in the air and their whole Pack was laughing at him.
Pack… now he was thinking like a fucking werewolf himself.
“Your damn Mate is going to be more upset if you don’t put me the fuck down! ” Katsuki continued to scream, because he had some dignity to maintain.
“Mate is lying.” The furry little shit replied, amused , so fucking pleased with himself that he even patted Katsuki’s ass as if he was trying to calm down an angry puppy.
Kirishima was howling with laughter and Katsuki was sure that stupid Deku was snickering as well. He was a vampire, he had good hearing.
“Bring him to the living room, Shouto. Let’s sit by the fireplace,” Deku suggested, a smile clear in his voice, and Katsuki started yelling like a banshee, outraged and pissed and goddamn embarrassed to be carried like a fucking princess by his fucking hot werewolf boyfriend. Fuck his life, seriously.
Or death, whatever, since he was a motherfucking vampire, after all.
Shouto was stroking his ass lovingly, in front of everyone, like he was the owner of it. Not that he wasn’t , but Katsuki didn’t need Deku and Shitty Ghost witnessing that. He didn’t need Shouto’s proud purr, the way he squeezed his asscheeks, and how hard he was getting just from that possessive behavior.
Katsuki liked possessive and, apparently, he liked furry too, much to his shame and self-disgust. Or maybe he was simply Shouto-sexual and his boyfriend had the power to get him aroused with a simple look if the idiot so wanted. Katsuki was really whipped.
Deku guided Shouto to the soft rug in front of the fireplace, lightning it up with his stupid magic as Shouto sat down with Katsuki on his lap, hugging him tightly. Like a pillow. Or a doll. Or something precious , something he had to keep safe and warm in his strong arms, cuddling and nuzzling and purring while doing so. Katsuki totally loved it, even though he never lost the scowl on his face.
“Dude, that’s cute,” Kirishima said, sitting by their side, followed by a smiling Deku.
“Shut up,” Katsuki mumbled, unable to sustain a threatening tone. He was too comfortable, too warm, too fucking happy to care.
Deku watched them for a few seconds, sighing in apparent contentment and scooping closer to the solid ghost, who didn’t seem to get the hint. Such an idiot, Katsuki almost pitied the witch.
“How are you feeling, Shouto?” Deku asked, making the werewolf stop his nuzzling and scent marking to look at him.
“Good.” Was the response he got before Shouto started licking Katsuki’s neck, making the vampire yelp and look at him, startled and embarrassed, pushing his face away.
“What the fuck, Shouto?!” He half yelled, half squeaked, completely freaked out.
“Mate tastes good, smells good.” The werewolf purred, all smug and fucking sexy , tilting his head to the side like a real life puppy and Katsuki was so fond that his dead heart twitched inside his chest.
“Okay, but no licking.”
“Yeah, dude, not in front of the guests. After we leave, you can do all the licking,” Kirishima teased, winking at Shouto as Deku chuckled and Katsuki’s fist flied to punch that fucking etheral face, going through him and almost hitting the damn witch.
After that, Shouto behaved and they stayed there, watching the fire and talking about stupid things while the werewolf nuzzled at his neck and hugged him, contributing to the conversation with his rich caveman vocabulary. He was such a good puppy that Katsuki found himself petting those cute ears, earning a pleasured whine and a tighter hug, which was too fucking cute for words. Shouto loved it when Katsuki scratched behind his fluffy ears, under his chin, when he called the werewolf a good boy and said he looked pretty. Just like a damn dog and he would make all the dog jokes after his boyfriend was back to normal.
He earned that right.
Kirishima and Deku left just before the sunrise, looking at each other like they were going to boink and Katsuki pretended to be disgusted, but he was actually happy for his friends. The dawn brought them Valentine’s Day and Shouto’s gift was safely hidden in his closet, waiting for when his boyfriend was ready to receive it. Katsuki had to admit he was quite nervous to give it to him, but well, there was no turning back for them now. Not after this night, not after everything that had happened to them.
He loved Shouto too fucking much to call him just boyfriend. It seemed like too small of a title for how much Shouto meant to him.
But the dawn also brought him the kinkiest sex of his life, where he received a mating bite on his neck that would never fade away. That made his sheets be ready to be burned all the way to hell, completely ripped into shreds and so dirty with all kinds of fluids that Katsuki was almost scared to go back to his room. He was just glad he had instant healing, or else he would be fucked. In more ways than one.
He expected Shouto to be back to normal when morning came, but the ears and the tail remained, making him look so fucking cute that the vampire couldn’t stop smiling everytime he looked at him.
“You look stupid,” he said in a fond voice, sitting by Shouto’s side at the couch and pretending he wasn’t nervous as hell as he held the Valentine’s gift behind his back.
“You are anxious, I can smell it. What’s wrong?” Shouto asked, tilting his head to the side all puppy like and melting Katsuki’s dead heart all over again. Stupid fucking werewolf.
Sighing, Katsuki gave the small box to his boyfriend, watching him opening it with curiosity while sniffing, almost unconsciously, at the gift. “Happy Valentine’s day. Marry me, idiot.”
Shouto was so shocked that he almost dropped the ring box, his eyes wide and his mouth hanging open. It would be cute if Katsuki wasn’t so damn scared, but then he got an armful of happy puppy, spreading kisses all over his face and neck, licking at his mating mark and howling like a motherfucker.
“Yes! I’ll marry you, Katsuki!” Shouto finally said, putting the ring at his finger and smiling at the thing like a damn child. “We are going to get supernatural married!”
Katsuki rolled his eyes, because really , his now fiancé was a fucking idiot. But Shouto was his idiot. Forever. And they had all eternity together now.
“I don’t even know why the fuck I love you,” Katsuki declared with a small smirk before climbing into the werewolf’s lap and sitting comfortably there, those strong arms circling his waist and keeping him in place. Shouto was warm and that place was rightfully his, fuck you very much.
“I love you too. I was going to give you your present, but a vampire is on top of me right now and I can’t move, sorry. Maybe later.”
Katsuki smiled again, hiding his face on Shouto’s neck while petting those adorable ears. He was happy, he was so fucking happy that he thought that nothing could ruin that moment for him.
“Congratulations, Bro! That’s so manly!”
But, apparently, he was fucking wrong.
“Die, you stupid ghost! Get the hell away from here! Are you watching us?! You creepy motherfucker! I’m going to kill you again! ”