AobaXMale!Reader (Beast)

You sat in Aoba's room as the other invited people walked in, sitting in a circle. When the host of this "slumber party" came in, he carried a box of liquor and sat it at the side, handing the beer cans to everyone. When he held one out to you, your hands came up.
"I don't drink, thanks though." Everyone, except Koujaku, stared at you in surprise. None of them knew that. You looked to your left and saw Aoba, then to your right and saw Koujaku, who was your brother. You had beautiful (h/c) hair with navy blue tips that was pulled back into a small ponytail at your nape, which went down about two inches into your back and (e/c) eyes that sparkled with kindness, though you were kind of shy. You wore a (f/c) kimono top that was closed by silver sash, so that it covered your whole broad chest, and black pants. When the first game started, it was Spin The Bottle, making you pale and tug on your brother's sleeve.
"Kou-Koujaku..." He saw you start shivering and patted your back lightly, whispering in your ear.
"You'll be fine as long as whoever you get paired with, doesn't get to intimate." Nodding, you watched the bottle be spun by Noiz, landing on Clear who was to his left. Finishing a light kiss, Clear spun and landed on Trip, getting a deeper kiss than before. Trip then spun, landing on Virus, who was to his right. After another, awkward for you, kiss, Virus spun, landing on you. A dark blush rose to your face, as the blonde smirked, making his way over to you, being stopped briefly by your older brother.
"Just don't get too into it."
"Tch, you're just being over protective," Virus scoffed
"You'll see," the dark haired man sighed in concern for you. Virus locked his lips with yours and suddenly forced his tongue in, making you squeak with a blush. This made him smirk, but he grew confused when your hands gripped tightly to his hair, a growl rising in your throat. He let out a sound of surprise when he felt your sharp teeth bite down onto his tongue hard. Pulling back, everyone could see him holding his mouth, blood coming through his hand. Looking to you, they could see you wiping Virus' blood from your mouth.
"Sorry about that Virus, but you should've listened to my brother."

After a few more rounds, the game is swapped for Truth or Dare. Your blush grew ten fold and you began sweating really hard. Your eyes were glossy and in your daze, Aoba helped untie your kimono, pulling it from your shoulders and showing off your lean build, with tribal tattoos down your back and arms. A few rounds into that game, Trip spins it and it lands on you.
"Truth or Dare ____?"
"Uh um....dare?" You had a feeling you were going to regret this.
"I dare you to kiss Koujaku." You threw him a questioning glance, before moving closer to your brother.
"It's just a dare..." He reassured you and you nodded, but with everyone staring in your direction, you froze a mere inch from the tan skinned man's lips, trembling.
"K-K-Koujaku...." You managed to whisper before a growl surfaced, pulling your face into a snarl. You grabbed your head in your hands as you punctured your scalp with elongated nails, causing blood to drip down your head. Regaining a bit of breathing, you saw your brother place his hand on your forehead.
"You're on fire!"
"I j-just need some air..." You opened the door and stepped out, closing it with a click. In the room, they heard ragged breathing, a growl, and a solid thump as if someone had fallen on dead weight. Aoba opened the door quickly to see you with your chest to the floor and your head to the side. Your whole eye had turned blood red with a white slit pupil, which was shrunken in pain as you clawed the floor, spasming slightly. The bluenette rushed back to the room.
"Koujaku!" Your brother ran out with the other poking their heads out to see your hair beginning to turn snow white and your thrashing had caused your claws to cut your hair tie, letting it loose. Snarling in pain, you felt your hair forcibly grow out longer and more wild. Koujaku turned you over, causing you to lash out, barely missing him, and picked you up bridal style. You dug your nails into his bare shoulder, drawing blood as you shook and growled louder, his red eyes meeting your slit ones as he spoke.
"_____, why didn't you tell me you were feeling it?" Your growls slowly became words.
"I....thought.....I had it......under......control."
"Maybe I should take you home..."
"N-No. I can control it!" You growled as your eyes returned to their (e/c) gaze, but your hair stayed half (h/c), half white. You slowly pulled your claws from your brother's shoulder and looked away.
"S-Sorry."
"Hahah it's fine _____," Koujaku laughed and carried you back to the circle, keeping you closer to him. Aoba cautiously asked what was on his mind.
"A-Ah, if you don't mind. What was that?" You blushed as the hairdresser let out a sigh.
"Er...to put it simply...____'s in heat." Aoba blushed lightly.
"But, then, what's with the-" You looked up at the bluenette and sighed deeply.
"When I go into heat, I transform. I do this because Ryuuhou did my tattoos too. As you can see, when it acts up it starts to cover my whole body. He made this tattoo latch onto my sexual instincts and come out when I'm in heat and around more than two guys, since you all know I'm gay." They saw you shrug and Aoba was pulled closer to your brother so that Koujaku could whisper in his ear.
"When he gets like this he's worse than when my tattoo tries taking control. Ten. Times. Worse. He also has his 'bad ending' with people that don't return his feeling while he's like this. Last time, the guy was at the brink of death." Aoba shivered slightly and moved back to his seat. You blinked, remembering your dare and smirked.
"You never said it had to be a lip kiss, Trip." Leaning over, you pecked your brother on the cheek, causing him to be slightly stunned at your bold action.
'Damn, his heat's making him act bolder. But maybe it's cause Koujaku's his older brother,' Aoba thought, raising an eyebrow.

When you sit back down, a small blush dusts your face and you spun the bottle, landing on Virus who smirked.
"Dare."
"Hmmmmm....I dare you tooooooo......make out with Trip." Virus smirked.
"That's not a dare, that's Tuesday.*" He then tackled his brother(?) and mashed their lips together in a heated kiss. After a long minute, they pulled apart, a string of saliva attaching their tongues together. When Virus spun, it landed on Aoba.
"Dare."
"I dare you to tongue kiss _____." Aoba blushed lightly and turned to you. You had flushed red and he leaned over, sealing his lips to yours. Deepening the kiss, he pushed you to your back and a low growl erupted from the back of your throat. You pushed him to his back and nipped at his lips, pushing your tongue past them to dance with his. You softly combed your hands through the back of his hair, careful not to tug at the blue strands and emitting a small noise from him only heard by you. Pulling back, you sent a sharp grin to Virus.
"How's that for a tongue kiss?" Aoba sat up, flushed red as a strawberry, and spun. In the back of his mind, the bluenette began thinking to himself.
'W-Woah, _____ really changed. But...how'd he know my hair was a sensitive spot?' He then realized that you knew that he hated his hair being pulled on because it hurt, but he couldn't shake the feeling of your soft touch on his scalp. It felt nice actually, sensual, as if you were trying to comfort him. His eyes gazed at your form as the game went on. Your hair growing more wild and long the more the game went on. Aoba noticed that after his kiss with you, your hair had become nearly all white and your eyes would bleed red slightly, but with a shake of your head, you'd suppress it. The soft, throaty growls that reverberated from your form had an effect on him. He felt calm, yet a little scared at what you could do. He saw you raise a finger to rub your eye, a small claw forming at the end, and a little yawn pulled back your lips fin your sharp canines. Growing a little tired, you leant your head onto the closest person to you, which happened to be Aoba. Your soft snowy hair tickled his cheek and made him smile.

Another thirty minutes later, the game was again swapped for another, Seven Minutes in Heaven. Since there was an odd number of people, Clear took charge of the bucket and you watched couples go in and come out flustered. Soon it was your turn and you shuffled a hand inside the bucket. Your finger caught on something and you brought your hand out, a hair tie around your finger. Aoba chuckled and moved to the closet with you trailing after him. Sitting in the dimly lit closet, you fiddled with the tie in your fingers and gathered your, now longer, hair into your hands with some difficulty. Stretching out the band, you wrapped it around your hair so that it would stay out of your face. A few strands fell into your face, making you huff in annoyance, until you heard Aoba move behind you.
"Let me help." He ran his fingers through your hair and you tilted your head back growling softly in pleasure. You closed your eyes, missing the mischievous glint in his eye, as he lightly twirled a few strands around his finger and gently tugged, making your eyes snap open, red with a glowing white slit. A guttural growl rose from your throat, as you flipped him over, eyes glazed over. He looked into your eyes and smiled.
"I love you ____." Your growls softened in surprise.
"You do?" When he nodded, you replied with a deep kiss to his lips, nipping at the corners of his mouth. He opened his lips and your tongue shot into his mouth, coaxing his into a dance. After you parted from him, your lips attacked his neck and collar bone, leaving bite marks and hickeys up his neck and jaw. Lightly lifting a strand of hair in your hand, you saw the man flinch slightly and smiled lovingly, bringing the strands to your lips, where you nibbled on them, careful not to use your teeth. Your ears pricked up and you gave him another kiss, before picking him up and throwing him over your shoulder. The door opened and you walked out, hands behind his knees, walking out of the room and to your and Koujaku's shared house. The last thing the room saw was a smirk you sent their way.

Bringing him to your room, you set Aoba on the bed and sat with him, a light blush coming to your face.
"Um...sorry about that."
"It's no problem, I'm used to it." You gave him a mix between a nervous and sheepish smile.
"Eh, there's something I need to tell you. No matter how dominant I act, I'm always on the bottom..." He chuckled and kissed you on the lips again.
"We can figure something out..."