[2:03AM] Sakusa Kiyoomi - A/B/O
Hey all. School got busy, and I needed to complete the midterm, and now I'm on spring break. Still working on my other stories - hang in there for me!
Warning: A/B/O - possessive; explicit smut; knotting; pregnancy; . Sakusa Kiyoomi’s first turning at age six revealed his exceptional dominance and alpha traits. It is highly likely, around 100%, that his second turning would also showcase the same characteristics.
This is attributed to the fact that the Sakusa lineage has a long-standing history of possessing potential alpha genes.
At age eight, he was sure his mate was his sister’s best friend, Y/l Y/n, who was six years older than him.
At age ten, he shocked everyone twice in one day when he held her hand – willingly and looked at Y/n dead in the eye, “you are my mate.”
Y/n, whom everyone adored, underwent two turnings, emerging as a recessive beta. Despite being cherished, Y/n knew she couldn’t become the mate of the charming Omi. It simply didn’t align with the dynamics of their kind.
She went along with it, affectionately patting his head, as she couldn’t bear to break his heart just as hers had been shattered when her first love rejected her for being a beta. Kiyoomi will eventually encounter his true mate, someone meant for him.
.
“Omi, you need to stop scenting me.” Y/n mustered the courage to confront the eighteen-year-old Kiyoomi.
Being a beta, Y/n lacked the ability to detect Kiyoomi’s scent, unaware that she was unknowingly carrying his scent while strolling around campus. Kiari, being from the same family, also couldn’t discern it. Only when an alpha pointed it out that Y/n become aware of the scent she emitted.
“No.” The once obedient little boy now stood tall, towering over her. His commanding presence cast a shadow of dominance, overwhelming her in comparison.
Her hand presses against his chest to keep him from coming closer. “Omi – I am older –“
“I don’t care.” He grabs her hand, holding it still on his chest. “I’m tired of you smelling like others.”
.
At age twenty-three, Kiyoomi had his first rut.
He managed to stifle his first rut with suppressants for years, but such measures could only provide temporary relief.
The first rut is vital.
If an alpha has not mated, they usually spend their first time with a beta since an alpha cannot impregnate a beta, even with a knot.
Kiyoomi bites down on the bottom of his shirt as he fists and strokes his large and thick cock for the fourth time, trying to find relief.
Feeling like he will die, he does the most desperate thing… he grabs his phone and taps on the screen…
His cock enlarges against his hand, and he groans, doubling over as his cum shoots out in large thick spurts over his phone to the image of Y/n smiling brightly on his screen.
.
A day later, his rut has not subsided.
“… Omi.” Her voice is hoarse over the phone. “Omi… I don’t know what – what is going on?”
Kiyoomi deliberately arranged to live in the same apartment building as Y/n, persuading himself that it wasn’t solely due to his obsession with her. He struggled to articulate genuine reason, but he finally understood why.
Taking the stairs from the twentieth floor down to the twelfth, he forcefully knocked on her door until she reluctantly opened it. Once inside, he closed the door behind him, securing it with a lock.
“Omi, why… why do I feel so hot?” Her hair was in a messy bun, her cheeks flushed, and she wore only a pair of shorts and a sports bra. “It – it won’t stop hurting…” Her hand tightly gripped the ends of her shorts.
He could see her perky nipples poking out from the flimsy material.
With no control left, his pheromones release and fills the entire room.
As a beta, they wouldn’t be able to feel them, immune to an alpha’s pheromones.
But Y/n stepped forward, grabbing his shirt, and her face pressed against his chest, inhaling deeply. Her moan was all it took to tick him off. He lifted her easily and carried her to the bedroom.
He laid her gently on the bed and pinned her wrists above her head.
“Y/n,” he breathes, “why are you… emitting pheromones?”
She shook her head, “I… I can’t do that?”
Kiyoomi’s jaw tightened as he inhaled, certain that it was her pheromone he detected. Yet, he was equally confused about how she was emitting pheromones.
“Omi,” she tries to wiggle free from his hold, “touch me….”
With one large hand easily holding down her small wrists, his other hand effortlessly tugs her sports bra upward to free her tits.
They were small, unlike most betas… they were fitting like an omega.
But once an omega is bred, her chest will grow to produce milk.
He dips and suckles on a nipple, mouth completely, intaking her small mound. His hand is massaging and tugging the other side.
Y/n thrashes underneath him, whining.
He lifts his mouth, satisfied when her tit is wet with his saliva, swollen and marked with his teeth. He looks at her, faces flushed and desperate. He towers over her, lips barely hovering over hers. “Are you mine?”
She nodded her head, “yes… yours… only yours….”
He releases her wrists, sits back to pull her upright, and tugs off her remaining clothing before shedding his own.
He pushes her down on her back again and dips between her legs to lavish her core with no shame.
His nose press and rubs against her clit as he pushes his tongue as far as he can inside. He could die happy in between her legs.
“Omi!” Her fingers grip his curls tightly. She tenses up when three of his long fingers slip past and thrust inside against her walls.
While his fingers thrust inside her, his mouth is busy marking away. Blotches of red teeth mark all over her thighs.
Four fingers plunge inside her pussy with ease. The way her walls close in on this finger, his cock twitches against his abdomen.
He withdraws his fingers, using the wetness to spread over his rock-hard cock. She was about to shift onto her hands and knees when he stopped her. “What are you doing?”
“You don’t want me on my hands and knees?”
Kiyoomi’s eyes narrow, and he growls, “have you already given yourself to someone else?”
She submitted under his alpha gaze, “no, I just… heard it’s easier that way?”
He calmed himself down and pressed her down on her back. “I want to see you this way.” His cock twitches as it presses against her opening, feeling her wet slippery pussy kiss the tip.
He looks at her, faces flushed and eyes on his cock. “Omi…”
That was all it took for him to plunge home.
She felt so good that he almost knotted that instant.
His nose twitched; she smelled so sweet and addicting.
His hips slowly moved, and it took everything in him to at least give her that much to adjust to his size before he would break her.
Her moans were enough for him to know she was more than ready.
Kiyoomi pushes her legs against her chest, locking her down before rutting hard into her pussy. His cock forced her tight, hot walls to expand with each deep thrust.
Y/n cups his face with both hands, pulling him down for a brief kiss. Her soft whimpers were music to his ears, encouraging his hips to pound hard against hers.
The bomb inside him was ticking; the heat and scent she gave off only made him push his cock deeper until the tip was pressed against her cervix.
Kiyoomi buries his face against her neck, kissing along her shoulder until he smells her sweet gland radiating her scent. He lets her legs go so he can be chest-to-chest with her. Each time he inhales her scent, it travels down to his cock, making it tremor and swell. The last few hard thrusts went deeper and deeper until the tip of his cock pushed past her cervix opening. His knot inflates once he breaks the barrier, and her cervix locks around his cock.
Y/n’s arms tightly grip him; their legs tremble as his knot fills her.
Kiyoomi wince and groan as his hips jerk with each spurt that fills her womb. His nose rubs against the gland that emits the sweet scent he has been addicted to since he could remember.
Claim her.
Claim her.
Claim her.
She wiggles underneath him, trying to escape knowing well she cannot.
He holds her still as he rolls onto his back so his weight isn’t crushing her. He kisses the crown of her head, murmuring her name and praising her for taking his knot so well.
His cock expands within her, keeping her sealed with his scent.
But that wasn’t enough.
His canine sinks into her shoulder, breaking the skin. Kiyoomi bites hard until he knows his mark is forever tattooed on her skin and soul.
.
Three weeks have since passed, and Y/n has been avoiding Kiyoomi.
Four days.
Four days of being locked up in Y/n’s apartment with non-stop sex.
When Y/n came to her senses, it was like she was possessed. Vivid memories reminded her that it was not a dream. The mark on her shoulder was real; something inside her felt utterly different.
It is rare for a dominant alpha to mark a beta, and even so, after a few days – the mark will disappear because of the incompatibility. Most alphas need an omega to be able to reproduce. Even a dominant alpha would not be able to impregnate a beta, let alone a recessive beta. By a miracle, Betas can only reproduce with a dominant beta.
Y/n read it online that the mark should fade and almost become meaningless within a few days.
However, all the love marks disappeared except the one on her shoulder.
“Why,” she whispers, “why did you mark me?” She pulls her collar to reveal the permanent mark. “It won’t go away.”
Kiyoomi, without a mask, blinks at her in silence. “You’re my mate, Y/n.”
“No!” She grits, “I cannot be your mate, Kiyoomi. I am a beta.”
“I don’t care.”
“I don’t want you as my mate.” She barely whispers, frustrated tears slipping down her cheek. “I didn’t ask for this.”
.
Her body was changing. Something… was different.
“I don’t have an explanation… it’s not rare, but it is not common to have a third turning.”
Y/n is stunned in her seat at the doctor’s office.
Omega.
Recessive omega.
The doctor sighs, “the only pattern we noticed with third turnings and that we can determine for sure is that a dominant alpha causes it.” His eyes narrow at Y/n, “is your alpha a dominant or recessive alpha?”
“I don’t have an alpha.”
The doctor pushes another sheet of results towards her, and her breath hitches when her eyes catch the word: P r e g n a n t
“You must be a few weeks along if your lab was able to detect it.” He exhales deeply. “I know this is a lot to take in… just consider this… a blessing in disguise?”
.
Kiyoomi is not waiting at her door for the first time.
Y/n enters her apartment, greeted again by the various bundles of bouquets. He has been sending her many bouquets. He was desperately seeking any attention from her.
She collapses on her couch and shuts her eyes. A palm rests over her flat abdomen.
A baby.
An omega.
Betas’ second gender can change with the pheromones of a dominant alpha, potentially enough with just their scent and pheromone.
Her eyes snap open, remembering two days before Kiyoomi’s rut; Y/n ran into him outside their apartment building. He commented how she smelled, and when they got on the elevators, they became packed with other residents that Kiyoomi cornered her. She could see the annoyance on his face, even with his mask on, and was about to offer to switch spots with him since he hated being touched by others.
“No,” he growls, keeping his arms caged around her. “You smell enough.”
Y/n made a face at him and stared straight ahead at his chest. The chest she has been dying to touch.
Her cheeks flushed, and her breath hitched as she switched thoughts to something else.
Why was the elevator taking forever?
She closes her eyes, keeping her thoughts clean, and hands to herself.
The chime pulls her back to reality. Her eyes snapped open, and Kiyoomi’s chest was pressed against her face. She looks around the giant in front of her and frowns. It was empty except for the two. She looked up and noticed the elevator had long past her floor. “Omi! Why didn’t you tell me we passed my floor?”
He shrugged his shoulders, stepping back.
Y/n presses the button to her floor again, knowing it’ll go up to his first before going back down.
He mumbles a quiet bye and walks out of the elevator without looking back at her.
Her head thumps against the wall as she is brought down to her floor.
A couple was waiting on her floor for the elevator as she got out.
“Holy crap, who released their pheromones?”
.
Y/n waited outside his door after knocking two minutes ago.
Was he away?
He didn’t pick up his call.
Or respond to her messages?
After a day of discovering her new second gender and pregnancy, it was only rightful to tell him.
And accept him as her mate.
The door creaks and slowly opens.
“Om… mi?”
.
“His body is in a state of shock.”
She reaches for his hand, holding it gently.
“This typically happens when an alpha is rejected.” The doctor looks at her, “are you his mate?”
Y/n nods, head hung low. “Yes, it is me.”
Without further questioning, the doctor instructed as if it were normal. “Talk to him, reassure him, and give him affection. With that, he should return to normal in a few days.”
Once the doctor left, Y/n looked at Kiari and the other Sakusa members, “I didn’t –“
Kiari waves a hand at her. “He’s fine. Just being a big baby.” She came around the bed and hugged her, “I thought Omi was just spewing bullshit; I didn’t think you would be his mate.”
Mrs. Sakusa steps forward and brushes Kiyoomi’s loose curls aside. “We’ll leave you to take care of him.” She smiles, “welcome officially to the family, Y/n.”
At last, when it was just the two of them, Y/n pressed his hand to her cheek. “Wake up, Omi. I have so much to tell you.” He lay deeply asleep. “I am your omega, Omi.” She whispers, leaning over him. “Please wake up, wake up for our baby and me.”
Two hours later, Y/n is frantic, finding an empty bed. She stepped out to grab some food in the hospital cafeteria.
“Where is she?”
“Omi,” Y/n calls, slowly approaching a distressed alpha, causing a commotion at the nurse’s station. She holds her arms out, and he tugs her into his arms as soon as she is close. “I’m here.” She repeats.
She guides him back to his room, and they wait for the doctor. She grabs a mask and hooks it around each ear, securing it around his face.
“Put one on too.” She rolls her eyes but obeys his command.
He doesn’t let go of her hand the entire time, making her sit on the bed beside him with an arm wrapped securely around her waist.
“I want to go home.” After listening to the doctor’s lecture about caring for his health, he demanded that.
.
“I’m not….” Y/n repeats for the nth time, “I’m not going anywhere, okay? I’m just going to organize the stuff the hospital gave us. I’ll be right back.”
Kiyoomi was ordered to bed rest.
As soon as they returned to his apartment, he was joined at her hips, following her around and whining when she would be more than two feet away.
“Just forget about it. Come lay here with me.”
With a change of clothes, Y/n submitted to her alpha.
She slips into his bed and curls beside him.
He tugs her close, inhaling her scent. “You… smell different.”
“Like good or bad different?”
He inhales once more, “like a good different.”
“It’s probably because I’m pregnant.”
She’s flipped onto her back, and his eyes are wide, “what?”
She smiles, touching his face. “I’m pregnant.”
He frowns, “how?”
“I’m an omega. Recessive omega. I had a third turning.” His mouth dropped. “I had my first heat that day. I think it matched your rut too.”
Kiyoomi collapses on his back, pulling her over him. He brushes her hair behind her ear, “a baby?”
“Well, one knot is enough to impregnate me… we locked ourselves for four days. It was inevitable.” She leans over, lips hovering his briefly before she murmurs, “I’m your omega.”
“Forever.”
. . .
>>> @callmeraider @amarinthe @chaotic-fangirl-blog
E/n: not edited yet; thank you all for kind words on my previous post <3
