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Oiled up and knocked up

Summary:

Ratio is struggling with the intensity of his heat while trying to relax with a self-massage when Aventurine shows up unexpectedly—bad timing or maybe just what he needs?

Notes:

Dr. Ratio oiled up, fucked, and knocked up thats the fic

(See the end of the work for more notes.)

Work Text:

“I can’t take it anymore,” Ratio groaned, pressing his iced tea against his flushed cheek. The condensation dripped down his hand, cool against his overheated skin. “I swear, these heat suppressants are useless half the time.”

He sat hunched over the dining table in his home, a disorganized pile of research papers scattered around him. His students had turned them in days ago, and he’d been trying to make headway, red pen scrawling feedback in the margins, but his focus was slipping. 

The feverish heat crawling up his spine was impossible to ignore. His hands trembled as he set aside a half-marked paper, sighing in frustration.

Omega heats are the worst if you don’t have someone to help you through them. The thought gnawed at him. He’d been trying to keep his cool, trying to work through it like he always did, but today was different. The suppressants weren’t doing their job. They never seemed to work when he needed them most.

“It’s not even fully on yet, and I’m already losing my mind,” he muttered to himself, rubbing the back of his neck. His skin was slick with sweat, every nerve on edge. He glanced at the clock. Mid-afternoon. His plan to power through the day was quickly unraveling.

This isn’t happening, he thought. Not today. But there was no denying it. He couldn’t work like this.

His eyes landed on a bottle of massage oil sitting on the counter nearby. It was something he’d picked up weeks ago, intending to treat himself after a stressful week of classes. He hadn’t used it yet, but tonight seemed like the perfect time to finally put it to use.

With a sigh, he stood, stretching his stiff muscles. He grabbed the bottle along with a towel and headed for the bathroom, figuring a soak in the hot tub might take the edge off. Just a little relaxation. A night to myself—that’s what I need.

Later, Ratio sank into the hot tub, sighing as the warm water enveloped him. The bubbles swirled lazily around his naked body, the jets pulsating against his sore muscles. He leaned back, letting his head rest on the curved edge of the tub, eyes slipping closed.

The lavender-scented steam rose around him, filling his lungs with its calming fragrance. For the first time in days, he could think straight. The heat in his body still simmered, but it wasn’t all-consuming now. The warmth of the water easing the tension that had gripped him for so long. This was exactly what he needed.

“I could get used to this,” he mumbled, sinking deeper into the tub. The jets hit the perfect spots along his back and shoulders, soothing every knot, every ache. His omega instincts were still there, still urging him to seek relief in ways he couldn’t allow himself, but the bath was a temporary distraction. Enough to keep his mind from spiraling.

His phone buzzed on the nearby counter, but he ignored it. No interruptions tonight. He didn’t want to think about work, or anything outside of this room. The world could wait.


Dressed in nothing but his bathrobe, Ratio climbed onto his bed, the soft padding beneath him a welcome change after the tension-filled day. He wiggled around, trying to get comfortable, but his body refused to settle. His heat always left him feeling restless, unable to keep still.

“Maybe a good massage will calm me down,” he muttered to himself. He reached for the massage oil he’d set on his nightstand earlier, uncapping it and pouring a generous amount onto his palms. 

The smooth, cool oil glided over his stiff shoulders as he began kneading his muscles, trying to work out the knots that had formed from days of tension. The scent was immediately soothing, the lavender wrapping around him like a comforting blanket, and for a moment, he thought maybe this would work.

Just as his body began to relax, there was a sharp knock on the door.

Ratio groaned, irritated by the interruption. He was halfway through oiling up his arms, the sheen of the lavender-scented liquid glistening under the dim bedroom light. He wiped his hands on a towel and padded over to the front door, the soft fabric of his robe clinging to his skin.

When he opened it, Aventurine stood on the threshold, smirking, as if completely unbothered by the look of sheer annoyance on Ratio’s face.

“What the hell, Aventurine?” Ratio snapped, crossing his arms over his chest. “Why didn’t you tell me you were coming over first?”

Aventurine raised an eyebrow. “I did. I called you like an hour ago, but you didn’t pick up.”

Ratio blinked, confused for a moment. “You—wait. I didn’t hear my phone. Must’ve been in the other room…”

“Clearly,” Aventurine replied, eyeing Ratio up and down. “But from the looks of it, I came at just the right time. You’re halfway to a breakdown, aren’t you?”

Ratio’s scowl deepened. “It’s none of your business.”

“Sure, sure.” The alpha now leaned casually against the doorframe, arms crossed, clearly unfazed. “But you’re not fooling anyone, Ratio. You look like you’re about to crawl out of your skin. Let me guess—those suppressants aren’t cutting it?”

Ratio rubbed the back of his neck, feeling the tension creeping back up despite his earlier efforts to relax. He knew Aventurine could tell how agitated he was, but he wasn’t about to admit that.

“What do you want?” Ratio asked, trying to steer the conversation away from himself.

Aventurine smirked again, eyes flicking to the bottle of oil still in Ratio’s hand. “Actually, I think the real question is: What do you want? Looks like you’re having a tough time reaching certain spots.”

Ratio frowned. “I was doing fine…”

“Oh, sure,” Aventurine said, stepping into the doorway uninvited, a playful glint in his eyes. “But you and I both know you can’t reach everywhere on your own. Why don’t you let me help you out?”

Ratio stared at him, caught off guard. “What? You want to—?”

“Help you. Yes,” Aventurine cut him off, his tone surprisingly gentle. “Before you twist yourself into a knot trying to do it yourself. Come on, Doc. I’m offering.”

Ratio hesitated, his natural instinct to refuse warring with the truth of what Aventurine was saying. His body was still tense, and he’d barely managed to work on his upper arms before getting interrupted. As much as he hated to admit it, Aventurine was right—he couldn’t do this alone.

“You’re serious?” Ratio finally asked, his voice quieter.

Aventurine shrugged. “If it helps you relax, yeah. And besides, I can get those hard-to-reach spots you’re struggling with.”

Ratio bit his lip, eyes flicking to Aventurine’s hands and then back to his face. Why does this always feel like a bad idea? He didn’t trust Aventurine completely, but right now, his whole body was aching for relief.

“Fine,” Ratio muttered, stepping back to let Aventurine in. “But no funny business.”

Aventurine chuckled as he followed him to the bedroom. “Relax, Doc. I’ll keep it professional.”

Ratio shot him a skeptical look as he lay back down on the bed, and Aventurine grabbed the bottle of oil, pouring some into his hands.

The moment Aventurine’s scent hit him, Ratio’s eyes went wide. His breath caught in his throat, and instantly, his body reacted. His cock went rigid beneath him, a painful throb making him shift to one side, letting it curve up toward his navel. 

A wave of heat rolled through him, the unmistakable tingle of slick starting to gather between his legs. His Omega body was already preparing itself, self-lubricating, instinctively getting ready for mating.

Ratio’s skin, still warm from the hot tub, now felt feverish, every inch of him buzzing with awareness. He could feel how flushed he was, heat radiating from his skin. Oh no… It was happening. Aventurine’s presence, the raw power of an Alpha so close, was sending him into a full heat.

His head snapped up, eyes locking on Aventurine. His body screamed for him to move closer, to submit, but his mind was racing.

“Relax, Doc,” Aventurine said, a soft chuckle in his voice as though he was completely unaware of the chaos he was causing inside Ratio.

Ratio’s nose filled with the overpowering scent of Aventurine’s pheromone, that deep, primal Alpha musk that made it impossible to think straight. He had to bite the inside of his cheek to stop from groaning aloud. 

His instincts begged him to lean into it, to let the heat take over, but he gritted his teeth and tore his gaze away from Aventurine’s confident smirk, forcing himself to lie back down on the bed.

He could barely stand the feeling of his cock throbbing against the sheets, the friction just enough to drive him mad but not enough to relieve the unbearable pressure. He shifted uncomfortably, trying to distract himself, but the second Aventurine’s hands closed over his shoulders, Ratio was lost.

Aventurine’s fingers dug in expertly, the slick oil allowing his hands to glide smoothly over Ratio’s overheated skin. The Alpha’s touch was firm but gentle, his thumbs pressing into the knots of tension with skillful precision. Ratio bit down hard on his lower lip, trying to stay silent as pleasure shot down his spine, every nerve alight with sensation.

“That’s it,” Aventurine murmured above him, his voice low and soothing. “Just relax.”

Ratio tried. He really tried. But the combination of the massage oil and Aventurine’s scent was overwhelming. The Alpha’s voice alone sent shivers through him, each word a command his body wanted desperately to obey. 

His breath came in short gasps, his chest rising and falling unevenly as Aventurine’s hands worked their way up and down his arms, kneading expertly, as though this was nothing more than a simple massage.

But to Ratio, it felt like torture. His body craved more. Every brush of Aventurine’s hands, every breath of that Alpha scent pushed him closer to the edge, his mind barely able to hold on to control. His cock throbbed, painfully sensitive, slick dripping from between his legs as his Omega instincts screamed for release. He could feel the wetness pooling beneath him, and it took everything in him not to moan, not to give in to the heat consuming him.

Just hold out, he told himself, just for an hour. But even that seemed impossible now. The way Aventurine’s hands slid down his back, the warmth of his breath so close to his skin—it was all too much.

Ratio couldn’t bite back the groan that escaped his lips as Aventurine’s fingers kneaded the back of his neck, one hand gripping the sensitive skin with firm, practiced ease while the other pressed gently between his shoulder blades. 

The pressure was almost too much—it hit a spot that made Ratio’s whole body tremble. That particular area was an Omega’s most sensitive zone, and the moment Aventurine’s hands touched it, Ratio’s submissive reflex kicked in hard.

His lips parted instinctively, a soft gasp escaping as his back arched off the bed, the rational part of his mind slipping away. His body was taking over, reacting to the Alpha’s touch in ways he couldn’t control. He was helpless against the wave of need that crashed through him, wiping away any pretense of resistance.

“Yes, Ratio,” Aventurine growled, his voice thick with desire as his hand squeezed the back of Ratio’s neck, sending a shiver down his spine. “I know exactly what you need.”

Ratio gasped, eyes fluttering closed as Aventurine buried his nose in the curve of his neck, inhaling deeply. The Alpha’s hot breath fanned over his skin, the primal scent of him mixing with the lavender oil and the musk of Ratio’s own heat. The combination made Ratio dizzy, his mind fogging up as his Omega instincts roared to life.

“You smell delicious,” Aventurine growled, voice a deep rumble against Ratio’s skin. His words sent sparks of heat straight to Ratio’s core, his cock throbbing painfully as slick gathered between his thighs. “I want you, Ratio. And I know you’re in heat, Omega. You need to be filled, don’t you? Fucked until you can’t think anymore.”

Ratio’s breath hitched, his body trembling beneath Aventurine’s touch. He knew what was happening, knew how badly his Omega instincts were betraying him, but he couldn’t stop the needy groan that tore from his throat.

“Yes,” he groaned, the word slipping out before he could stop it. His body was on fire, the slickness spreading down between his thighs, coating him in warm wetness as his need grew unbearable. It was instinct—pure, unfiltered need.

Aventurine’s hands slid down the length of Ratio’s back, his fingers ripping the sheet aside with a rough motion. Ratio could hear Aventurine suck in a sharp breath as his hands found their way to his ass, kneading the firm flesh, spreading him open with ease. 

Ratio instinctively reached back, a reflexive move to cover himself, to protect his vulnerability, but Aventurine caught his wrist effortlessly, holding it down against the bed.

“Don’t be shy, Omega,” Aventurine purred, his tone dripping with confidence, an edge of command that sent a fresh surge of slick pooling between Ratio’s legs. “Let me help you relax. You need this.”

Ratio couldn’t stop the submissive whine that escaped him, his body reacting without thought. His hips lifted, back arching as Aventurine’s fingers teased the sensitive ring of muscle, circling his entrance with a feather-light touch. The Alpha’s fingertip was slick with Ratio’s own wetness, and the sensation sent his mind spiraling into need.

He bit his lip, fingers digging into the sheets, his whole body trembling with anticipation. His body craved it—craved the filling, the pressure, the relief that only an Alpha could give him. He needed more.

And Aventurine obliged.

Slowly, the Alpha slid a single finger inside him, the sensation sending a gasp tearing from Ratio’s throat. He was tight, slick, and ready, his body welcoming the intrusion with a wave of pleasure that made his muscles quiver.

“Yes,” Ratio whimpered, his voice desperate, barely above a breath. “More.”

Aventurine didn’t hesitate. A second finger joined the first, stretching him open, the slick heat of it sending Ratio’s senses into overdrive. The pressure was perfect, just enough to make him want more, and as Aventurine’s fingers curled inside him, Ratio’s breath hitched, a moan spilling from his lips.

His body was screaming for it, every nerve alight with need. He could feel his cock twitching, painfully hard, and the slick between his thighs was almost embarrassing. But he didn’t care. He couldn’t care. He needed more.

“Please,” Ratio whimpered, his voice ragged, barely holding it together. “More, Aventurine…”

Aventurine’s low growl of approval made Ratio’s body tense, his back arching as the Alpha pressed his fingers deeper, stretching him, preparing him.

Aventurine chuckled darkly, his voice a low rumble as he worked his fingers in and out of Ratio’s slick heat, stretching and testing him with agonizing patience. “So greedy, aren’t you?” he growled, the predatory tone sending shivers down Ratio’s spine. “And so wet. You must need it really bad.”

Ratio let out a helpless whine when Aventurine suddenly withdrew his fingers, leaving him empty and aching. His body tensed, a wave of desperation crashing over him as the emptiness became unbearable.

“Roll over,” Aventurine commanded, his voice firm, Alpha authority lacing every word. Ratio obeyed instantly, flipping onto his back, his movements frantic as he squirmed into position. His own cock stood painfully erect, the tip glistening with pre-cum as it jutted up in the air, completely neglected. He bit his lip, trying to suppress the overwhelming need as Aventurine’s fingers gripped his hips, pulling him into place.

The Alpha loomed above him, and Ratio’s breath caught in his throat as he took in the dangerous light flickering in Aventurine’s eyes—a feral, predatory gleam that sent a mixture of fear and excitement coursing through his veins. His Omega instincts screamed at him to submit, to surrender fully to the Alpha hovering over him.

Aventurine’s eyes were locked on Ratio as he stripped off his shirt, revealing a muscular chest and abs that made Ratio’s heart race. He couldn’t help but bite his lower lip at the sight, his body reacting instinctively to the raw power Aventurine exuded.

But when the Alpha pushed his pants off his hips, letting his cock spring free, Ratio’s mouth went dry. He could barely keep his cool. Aventurine’s cock was thick, beautifully veined, the head already glistening with pre-cum. 

Ratio’s gaze drifted lower, his breath catching when he saw the knot—the flared base of the Alpha’s cock, already fuller than he’d expected. His mind faltered for a moment, nerves twisting in his gut. Could he even take that inside him?

Aventurine didn’t give him time to dwell on it. The Alpha’s hands grabbed Ratio’s thighs, spreading them wide. Ratio gasped, his body trembling as he felt the blunt head of Aventurine’s cock pressing against his entrance, rubbing back and forth in slow, teasing strokes. The sensation sent waves of need pulsing through him, his hips lifting instinctively to meet the teasing touch.

“Please,” Ratio gasped, his voice cracking with desperation. “I can’t take it anymore.”

Aventurine’s growl of satisfaction was all the warning Ratio got before the Alpha pushed forward, his thick cock sinking into Ratio’s slick, eager hole. Ratio groaned, his head falling back as the overwhelming sensation of being filled consumed him. Aventurine’s cock stretched him perfectly, every inch of him throbbing with pleasure as the Alpha seated himself deep inside him.

“Mmmm, so wet, so tight,” Aventurine rasped, his eyes half-lidded in pleasure as he paused, buried up to his knot. Ratio’s body was burning, his heat spiraling out of control with the Alpha inside him, but he barely needed time to adjust. His hips bucked involuntarily, back arching off the bed as his body begged for more.

Aventurine’s lips curled into a wicked smile as he gripped Ratio’s leg, pulling it up and draping it over his shoulder. “I’m going to take you deep,” he growled, his voice sent a shiver of anticipation through Ratio’s body.

When Aventurine pulled back, then thrust forward again, the force of it tore a moan from Ratio’s throat. The Alpha didn’t hold back—he began fucking him in earnest, his powerful strokes driving deep inside Ratio’s tight ass, the knot teasing against Ratio’s slick entrance with every thrust.

Ratio’s body responded instinctively, hips meeting every powerful drive as pleasure flooded his senses. He was lost in it—lost in the heat, the primal connection between Alpha and Omega, the overwhelming sensation of being filled so completely.

With every thrust, Aventurine’s cock stretched him wider, the pressure of the knot sending shocks of pleasure through Ratio’s entire body. His cock throbbed helplessly, leaking pre-cum onto his stomach, but all he could focus on was the Alpha’s cock pounding into him, claiming him in a way that made his Omega instincts sing with submission.

“Yes,” Ratio whimpered, his voice a breathless moan as Aventurine continued to fuck him, each stroke harder and deeper than the last. “More… please… more.”

Aventurine growled in response, his grip tightening on Ratio’s thighs as he drove into him with relentless force, his knot swelling.

Ratio had a perfect view of Aventurine’s thick cock, slick and glistening with his own wetness, spearing into him over and over again. His eyes followed the rhythmic motion, watching the delicious contraction and release of the Alpha’s abs, the way his muscles flexed with each thrust. The slap of Aventurine’s balls against his ass, coupled with the creaking of the bed beneath them, created a symphony of sensation that overwhelmed Ratio’s senses. It was too much—.

With a sharp yelp, Ratio came, his body seizing as he shot spurts of cum over his stomach. His back arched off the bed, every nerve in his body lighting up as his orgasm consumed him. He writhed on Aventurine’s cock, each powerful thrust intensifying the pleasure. 

Yes, this was what he wanted, what he needed. Every fiber of his being begged for more, his rational mind completely silenced by the blinding heat, the primal need to be filled and fucked beyond reason.

Aventurine’s eyes glinted with hunger as he watched Ratio’s orgasm ripple through him, but he didn’t slow down. If anything, he sped up, pounding into Ratio’s slick, tight hole with renewed intensity. His gaze locked onto Ratio’s, a feral light flickering in his eyes as his breath became more ragged, more uneven.

“I should pull out,” Aventurine growled, his voice rough with the strain of holding back. His thrusts didn’t falter, the force of them driving Ratio further into the bed. “But your sweet ass feels so good… I don’t think I can stop myself.”

“Don’t,” Ratio cried, his voice desperate, his body trembling with need. “Don’t pull out. I want you to fill me—fill me full of your cum. I want to feel it flood me… knot me, please.”

The Alpha’s growl deepened, and Ratio felt him push harder, his thick knot pressing insistently against his entrance. The pressure was almost unbearable, the stretch intense, but Ratio’s body yielded, and with a forceful thrust, Aventurine’s knot breached him, locking them together. Ratio’s cry was torn from his throat, a mix of pleasure and pain as he felt the knot swell, filling him to the limit.

Aventurine’s breath came in harsh pants as he leaned down, his lips brushing Ratio’s ear. “Gonna knock you up,” he snarled, his voice a deep rumble that sent a thrill down Ratio’s spine. “Give you a pup… God, you’re going to be even hotter when you’re pregnant, swollen with my seed.”

Ratio moaned at the words, his fingers digging into the sheets as Aventurine’s thrusts became frantic, faster and deeper with each passing second. The knot stretched him wide, locking them together, ensuring that there was no escape. The Alpha’s cock twitched inside him, and Ratio could feel it coming—Aventurine was on the brink, his body coiled tight with the impending release.

With a low, primal groan, Aventurine came. Ratio’s entire body jolted as he felt the first hot spurts of cum flooding into him, shooting deep inside his body. The heat of it filled him completely, and the knot ensured that not a single drop was wasted. Ratio’s breath hitched as he felt the thick pulses of cum pumping into him, his Omega instincts reveling in the sensation, the fulfillment of his deepest desires.

The knot swelled further, locking them together even tighter as Aventurine rode out his orgasm. Ratio’s body quivered beneath him, overwhelmed by the sensation of being so completely filled, so utterly claimed.

The Alpha’s cum flooded his insides, a warm, liquid heat that seeped into every part of him, making him feel whole, complete. And with the knot keeping them bound, Ratio knew it would stay inside him, every last drop.

Ratio groaned, his entire body going slack as the waves of his orgasm subsided, leaving him in a dazed, satisfied haze. His muscles softened, sinking into the soft bedding beneath him, while the knot inside him kept Aventurine’s cock firmly locked in place.

He could feel the steady pressure of the knot keeping him filled, a constant reminder of how deeply they were connected. And, despite everything, he loved it. The sensation of being tied to Aventurine made him feel whole in a way he hadn’t realized he craved. Complete.

Aventurine’s chest heaved as he caught his breath, resting his forehead on Ratio’s chest. His weight was comforting, grounding, as the Alpha’s skin remained hot against Ratio’s. Without thinking, Ratio’s hand slid down, fingers threading through Aventurine’s golden hair. He stroked gently, soothingly, drawing a low, rumbling sound of pleasure from the Alpha, almost like a purr. 

The sound vibrated through Ratio’s chest, making him smile lazily. They stayed like that for what felt like forever—wrapped up in each other, the world outside their small, private bubble fading away. Ratio could feel Aventurine’s knot slowly softening, the tightness gradually easing. The fullness remained, but it was less intense now, giving Ratio’s body a chance to recover. After about an hour of peaceful rest, the knot finally deflated enough to allow them to separate.

Ratio winced as Aventurine gently pulled out, a soft gasp escaping his lips as a flood of cum spilled from him, warm and thick, dripping down his thighs. He shuddered at the sensation, still feeling the lingering stretch inside him. He had known that Alphas released far more than Betas or Omega males, but seeing the sheer amount was startling. He could feel the heat of it running down his legs, pooling beneath him, making him blush.

Aventurine’s gaze softened as he leaned up and pressed a soft kiss to Ratio’s forehead, his lips warm and tender against his skin. The gesture felt surprisingly affectionate, a stark contrast to the intensity of what had come before. “Let’s rest for a bit,” Aventurine murmured, his voice low and soothing.

Ratio nodded, his body exhausted but utterly content. He shifted slightly, wincing as the soreness set in, but Aventurine’s arms wrapped around him, pulling him close. The Alpha held him gently, as if Ratio were something precious, and Ratio let himself melt into the embrace.


Epilogue: 6 Months Later

Ratio paused, pulling his coat tighter around his body as the cold breeze swept by. He stood outside the house, shifting on his feet while his hands rested protectively over his swollen belly. The weight of it still felt surreal, a constant reminder of how much had changed. He could feel the little fluttering movements inside, a soft kick here and there, as if the life growing within him was just as restless as he felt.

“Ratio.”

The familiar voice made him turn, his heart skipping a beat as Aventurine approached, that same confident stride and piercing gaze that always managed to leave Ratio flustered. The Alpha’s eyes traveled up and down Ratio’s body, lingering on his belly before meeting his gaze again. A smile tugged at the corner of Aventurine’s lips.

“You look good,” Aventurine said softly, his tone warm with admiration.

Ratio blushed, feeling the heat rise to his cheeks. He glanced down, instinctively resting his hands on the curve of his stomach. “Well, I feel as big as a house,” he muttered.

Aventurine’s smile widened, his eyes softening as he stepped closer, placing a gentle hand on Ratio’s belly. “You’re glowing,” he murmured, and there was something in his voice that made Ratio’s heart flutter. It wasn’t just affection; it was pride, deep and undeniable.

Ratio leaned into the touch, his body relaxing under Aventurine’s steady hand. For all the ups and downs they had faced, moments like this made it all worth it. “We’d better go,” Ratio said softly, glancing toward the street.

Aventurine nodded, but before they turned to leave, he pressed a soft kiss to Ratio’s cheek. “I’ll be with you, every step of the way,” he whispered. Ratio smiled, feeling a wave of warmth wash over him, and together they walked toward their future—no longer just the two of them, but soon to be three.

Notes:

If you’re here to comment nonsense, just know you’re embarrassing yourself. Silence would suit you better. So I turned the comment off.