Chapter Text
That seemed to satisfy her for the moment as she shifted her hips, meeting his thrusts. His knot soon expanded as he filled her, bred her. The Alpha imperative to impregnate his omega was strong. He wanted her stomach to swell with his child. If the Alpha got his way, she would constantly be pregnant, a clear indicator to all that she was his. But logically, he knew that wouldn’t be possible.
They were still linked by his knot, his hands holding her ass and thighs firmly as he began to walk towards their destination. Her legs were wound tightly around his waist as her head fell to rest against his shoulder. She crooned sleepily into his ear of how perfect her Alpha was, how he took care of her so well, and how she couldn’t wait to be bitten by him.
His cock pulsed at her words, hardening inside her once more even as his knot deflated. However, Katsuki was determined to make it to the cave before taking her again. She seemed to have taken notice of his arousal as she rocked her hips against him, but despite the pleasure that rolled through him in waves, his grip on her tightened and he held her in place.
His little omega whimpered as he thwarted her plans, but Katsuki held strong. She deserved to be worshiped, and constantly fucking against trees was not the way he planned to do it.
“Be still, my sweet Omega. Be a good girl for your Alpha,” he grunted, his voice thick with want. “Warm your Alpha’s cock while I get us somewhere private.”
“Yes, Alpha,” she purred softly, compliantly, before settling on pressing her nose to his neck and reveling in the unique scent of his pheromones.
They soon arrived at the cave. It was one of several that he kept stocked for longer trips, or times in which he needed space from the chaotic energy of his clanmates. This was where they would spend the rest of her heat. It was a simple space, but it was also warm, dry, and most importantly private.
An unmated omega in heat, even one accompanied by an Alpha, would draw the attention of all Alphas within a certain vicinity. Katsuki would not be rushed into biting her, but he also had no desire to fight off other Alphas who came looking for her. The cave would provide the perfect refuge.
Plus, there was a small cot for sleeping and a supply of dried food, mead, and water. He fed these to her between their couplings, ensuring to replenish the energy that burned through her at a rapid rate as her body was consumed by flames.
One of the benefits of being descended from dragons was that, despite his own inability to transform, joining the clan allowed him to communicate with the others telepathically. He sent a quick message to inform them he was safe, but would be otherwise preoccupied. Even worse than competing Alphas would be fending off the nosy, overly involved clanmates he called friends.
The next five days passed in a blur of fucking her frantically, resting lightly with his body entwined with hers, and caring for her.
On the final day she woke in a frenzy, her lust and desire for him palpable. Their combined scents had long since permeated every corner of the small space they inhabited, but even after becoming somewhat accustomed to it, he was struck by the fresh, bright zest of grapefruit that assaulted his senses.
She was laying on him, her head resting against his chest as his arms traced slow patterns up and down her back when the final wave of her heat began. His muscles burned deliciously at the extended efforts, but his cock rose to the occasion as writhed against him. His omega shifted up to press her mouth to his, her lips parting as her tongue met his in a wild dance.
The slick leaked from her at a steady pace, as her nipples hardened against his chest. He fingers dug grooves into her creamy thighs when she shifted and slid onto him. She impaled herself on his cock, throwing her head back as she screamed, “Alpha!”
She rocked her hips against him steadily. Fluids continued to seep from her, smearing the skin of his pelvis and dripping down his sac to the cot beneath them. He briefly considered that he’d have to burn the bedding when the day was through, but her cries and the way she rode him so beautifully quickly pushed thought from his mind.
Katsuki watched her, entranced by the way her breasts bounced as her hips moved with the fluidity of ocean waves. Her lips were parted and her hands teased her nipples. When he sat up to capture one between his teeth, her movements became more stuttered, but she continued to grind against him, chasing her release.
“Knot me, Alpha, I need your knot,” his little omega whimpered pleadingly.
Her nipple popped from his lips. His ruby eyes glinted and he grinned, watching as her eyes fell to his sharp canines. “Ask nicely.”
“Please, Alpha, knot me,” she cooed.
“Of course, Kitten. Should I bite you as well?”
Her eyes opened widely, pupils dilated so that there was hardly any hint of the brown warmth he was so drawn to, and her hips slowly came to a pause.
“Would you like that?” Katsuki purred.
“Yes, please, Alpha.” She brought her lips to his, their foreheads pressed to one another, and he began to thrust up into her. He quickly established a punishing, relentless pace. His omega would climax, he would knot her, and then he would claim her.
“You’ll be mine, my mate. Is that what you want?”
“Y-yes!” she wailed as the head of his cock brushed against the sensitive bundle of nerves within her. “Breed me, Alpha, and bite me. I’m yours.”
Though Katsuki knew on some level that it was likely the omega and not the mage speaking, his Alpha commanded that he acquiesce to her demands.
He felt her core pulsing as his knot grew, his seed spilling into her in hot spurts. The dragon that lay dormant within him threatened to emerge, but in their week together Katsuki had managed some control over it. The transformation seemed tied to his knot, though it wasn’t quite clear what the relationship was as he didn’t shift every time he knotted.
Moreover, through the many knots that occurred in the last week, he learned how to push the dragon down.
It wouldn’t do any good to scare her, after all. Although the clenching of her walls briefly abated, another orgasm crashed through her as his knot continued to fill her.
Katsuki brought his teeth to the scent gland at her neck, barely scratching the surface of the skin and savoring the way her scent spilled from her.
She leaned into his touch, wrapping her arms behind his neck and twining her hand through the short hair at the nape of his neck, guiding him to break the gland and release her succulent juices. His knot continued to throb as his teeth nicked the gland. At the taste of her all restraint was lost.
His Alpha emerged and he sunk his sharp teeth into the delicate skin, a scream of pleasure erupting from her as she reached climax for a third time. He ran his tongue across the torn gland, lapping up her essence and soothing the puncture marks.
Her nose was buried in the crook of his neck, and she used it to nudge his cheek and gain better access to his gland. Katsuki allowed it, pulling away slightly to allow her to tend to his own gland. She kissed the skin, before licking it, and finally puncturing it with her teeth.
Katsuki groaned loudly. His knot had previously begun to slow in its efforts to paint her walls, but at the breaking of his own gland, his seed began to spurt into her cunt at a rapid pace once more. His orgasm reached a second crescendo and he pulled her over the edge into bliss with him, collapsing back onto the cot with her small figure nestled tightly against him.
They fell into a long, peaceful rest, her heat finally over.
He awoke to her panic-stricken, confused movements as she tried to pull from his grasp. Wrapping his arms around her more snugly, he tried to lull her back to sleep.
That was when she bit his shoulder hard enough to draw blood.
“What the fuck?” he roared, now fully awake.
“Get off me!” she shrieked in response.
“You’re the one on top of me, so why the fuck did you bite me?”
“You wouldn’t let me go!”
Taking a deep breath to regain control of his anger, he closed his eyes briefly before allowing his gaze to fall on the enraged woman before him. “Why would I let you go? You’re mine. Besides, you need rest. So stop being obstinate and stop fighting me.”
She had continued her efforts to wiggle from his grasp, though she stopped as his words finally sunk in. Confusion colored her features. “Wait, what do you mean, I’m yours?”
“You’re my mate,” he responded with a roll of his eyes. He knew she couldn’t have forgotten all that transpired, despite the fact that she was in a lust-induced haze for most of the heat.
“Just because we spent one heat together doesn’t mean you have ownership of me,” she spat, the fury in her eyes reaching new levels.
“No shit,” he barked back, “I’m not a fucking idiot.”
“Well then why would you say something so presumptuous?” she demanded.
“Because I bit you, after you begged me to,” he added the last part quickly, lest she resume her attack on him.
That seemed to give her pause. “I begged you to?”
“Yeah, you did. On multiple occasions throughout the heat. And, you bit me back, so the bond is fully complete.”
“I bit you back…” she repeated distractedly, her eyebrows furrowed, as if she were trying to recall the events that transpired.
“Yep,” he confirmed with a smirk, “so there’s no getting rid of me now.”
His omega ran her fingers along her neck, trying to feel for the broken skin, but only finding small scars instead. The magic that sparked around and between them seemed to have healed her at a rapid rate, a further testament of the strength of their bond.
Although any Alpha and omega that were mated shared a bond, only the bonds of true mates would exhibit the kind of raw power that they experienced. The stories shared with him of legendary true mate pairings came rushing back to him as the pheromones subsided to a manageable level.
“Besides, even if we hadn’t formed a bond, you’ve already promised yourself to me,” he continued lazily, his smirk growing to a grin.
She actually ‘eep’ ed in response. Despite her stubborn, fighting nature returning now that the heat was over, Katsuki couldn’t help but find himself a little smitten at her adorable, feisty nature.
“W-What are you talking about?” she responded after several moments of stunned silence. He wanted to keep teasing her, but he settled for a more direct approach.
He and his mate, his wife, already started as enemies. It would likely be imprudent to continue goading her if his long-term happiness was to be taken into account. There would already be much growth and learning to be had between them.
But he wasn’t about to make it completely easy for her. “That necklace you wear, do you know its significance?”
His omega glanced down at the red jewel before meeting his gaze once more.
“Um…I know it’s a powerful magical object…” she offered hesitantly.
Katsuki chuckled. “You’re not wrong in that assessment. But do you understand its value within the Dragon Clan?”
She shook her head, falling into a sullen sort of silence.
“It’s an heirloom passed down through many generations. My grandmother gave it to my father, who then presented it to my mother. Before her death, she gifted it to me.”
“I’m s-sorry,” she stuttered. “I didn’t realize it’s sentimental value or I would have insisted we return it.”
“Oh, there’s more than sentimental value to it, Kitten, though you are correct in your assumption of how much it means to me. It’s the last possession I have left of my parents.”
“I said, I’m sorry. I mean it, don’t be cross,” she repeated quietly.
Despite her reputation as the greatest mage in the land, one that he knew to be true given what he witnessed of her powers in the week he chased her and her companions, she seemed to struggle with putting the pieces of the puzzle together.
“You still don’t get it, do you?”
“I’m not sure what you mean…”
“My father presented it to my mother on the day they wed. It’s a gift given by the dragon king to his bride as a symbol of their union. When she accepted, she became his wife.”
Katsuki watched in amusement as realization dawned on her. “Wait…”
“Although I didn’t give it to you directly, the old magic that the necklace is imbued with doesn’t require that part of the ceremony. All that matters is that you put it around your neck and allowed your magic to entwine with it.”
“No…” she whispered, “it can’t be… When I put it on, I agreed to be your wife?”
He grinned widely, “Exactly.”
“But I’m not ready to be mated, or married!”
“Tch, good to know,” Katsuki noted sarcastically.
“Nothing against you, it's just…”
“Kind of hard not to take it personally. I took care of you through your heat, didn’t I? Other Alphas might have just used you as a cock sleeve, but I made sure you were tended to.”
“I know, I’m sorry… I didn’t mean to offend you.”
“Well, consider me fucking offended.”
“I know we can’t break the bond, and we are a good match magically but... “
“But what?” he spat. Katsuki knew it wasn’t ideal, but they were true mates and it really could be much, much worse.
“I don’t even know your name,” she muttered resignedly. “We’re mated and married, and you’re right, I could have been a lot less lucky, but still. I hardly know you and up until before my heat you were hunting me.”
“You stole from me!” he barked back.
“I was against that plan from the beginning, though I know that hardly means a thing…”
Another deep breath, and Katsuki tried again. He bridged the gap between them and took her delicate hands in his. “Kitten, I know this isn’t ideal. Let’s start over. We’re in this together, for better or worse, and I’d much rather we try and get along.”
“Okay…” A light blush spread across her cheeks as she looked down at her feet shyly.
He extended an olive branch. “My name is Bakugo Katsuki.”
“Uraraka Ochako,” she met his gaze, her bright eyes muddled with confusion. “But if your name is Katsuki, why does Izuku call you Kacchan?”
He ripped his hands from hers a moment before an explosion lit from his palm, every bit of self-control ripped from him at the mention of his childhood nemesis.
“The damn nerd calls me what?!”