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As Stiles’ 13th birthday drew closer, the adults’ whispers changed.
He hadn’t presented yet—and while it wasn’t unheard of for people to be late bloomers, it was still cause for concern as the weeks ticked by.
He heard them whispering one night after they’d sent him to bed.
His mother wanted to have Stiles tested, to know now rather than later if he was a late bloomer—or simply destined to be a beta.
“I don’t see the need for all that,” his father huffed.
“What happened to you being worried about him going into heat and triggering a rut?” his mother asked sharply. There was a loud clang as she dropped whatever pot she’d been washing back into the sink.
“Claudia—”
“No, Noah, let’s hear it.” Her voice was rising. “What happened to you being afraid of him going into heat unexpectedly?”
His father sighed, long and heavy.
“Less than ten percent of alphas presented after the age of thirteen.”
“Don’t…” his mother’s voice cracked.
“Only around two percent of omegas presented after thirteen,” his father murmured, voice almost too quiet for Stiles to hear. "And even less of them male,"
Stiles sucked in a sharp breath. The silence in the kitchen was deafening.
What?
His hands shook where they hugged his legs to his chest.
“Claudia, we need to acknowledge the reality,” Noah said. There was shuffling—footsteps moving softly across the floor.
“I know…” she whispered, her voice muffled. “I was just so sure he’d be an omega.”
“Alphas taking betas isn’t unheard of,” Noah offered gently.
Stiles’ heart pounded so loudly it drowned out the rest.
He was a beta?
That couldn’t be right.
“I know. But Talia wants grandchildren. She’d never let Derek marry a male beta,” his mother whispered.
Stiles hugged his legs tighter, his bottom lip trembling as he tried to process what he’d just heard.
He couldn’t accept it. He wouldn’t.
He was just a late bloomer. That was all. It had to be.
Stiles scrambled up, slipping silently up the stairs before closing and locking his bedroom door behind him.
His heart was racing as he snatched his cellphone off the nightstand—a blue iPhone Derek had given him for Christmas, despite his dad’s annoyed glare. His father had grumbled that Stiles was too young for such a phone, but his mom had shut that down, insisting Derek was allowed to give Stiles whatever he saw fit as courting presents.
He unlocked the phone and opened the text thread with Derek, his fingers trembling as he scrolled through the messages.
Stiles: Can I spend the weekend with you?
Stiles: I miss you.
Derek: My rut is due tomorrow. It wouldn’t be safe.
Derek: You should stay home this weekend, but next weekend, Kitten. I promise.
Stiles: :(
Derek: I love you.
Stiles: …I love you too.
It wasn’t the next day yet. There was technically nothing stopping him tonight, right?
Stiles glanced at his bedroom window and sucked in a sharp breath before slipping on his tennis shoes.
Determined, he climbed out the window, padded across the roof, and carefully made his way to the edge. He scanned for a safe spot to scale down.
He managed not to fall on his face as he landed on the ground with a soft grunt.
Glancing around, he took off running, chest heaving as he sprinted down the dark streets in nothing but his pajamas.
By the time he reached Derek’s loft, he was shaking and shivering—thankfully it was closer than the old Hale house.
He took the stairs two at a time, heart pounding, too anxious to wait.
He needed to see Derek. Needed the alpha to induce his heat. Needed proof he was an omega.
He banged on the door until his fist throbbed, vision blurring with unshed tears.
“I’m coming!” Derek’s voice rang out from inside, but Stiles didn’t stop pounding until the door swung open—and he found himself face-to-face with Derek’s bare chest.
“Hold your—”
Derek’s words cut off as he took in the sight before him.
“Stiles?” Derek’s voice was sharp with surprise. “What are you doing here?”
Stiles sniffled and moved forward, wrapping his arms tightly around Derek’s waist.
Derek sucked in a sharp breath at the contact. “Did you walk here?”
“I’m not a beta,” Stiles hiccuped, burying his face against Derek’s chest.
“What?” Derek asked, hand lifting to cup the back of Stiles’ head, fingers gently stroking through his hair.
“’M not,” Stiles whimpered.
Derek sighed deeply, then without a word, scooped Stiles up into his arms.
Stiles instinctively wrapped around him—arms tight around his neck, legs clinging to his waist.
“Kitten,” Derek murmured, resting his cheek against the top of Stiles’ head. “What are you talking about?”
Stiles shook his head. He didn’t want to talk about it. Not now.
“Can I sleep here?” he asked instead.
Derek stiffened. “Stiles…”
“Please,” Stiles whispered, clutching tighter.
Derek’s voice was tight. “That’s not a good idea.”
“Why?” Stiles asked, lips pressed into a stubborn line.
Derek drew in a shaky breath. “I’m going into rut soon, kitten. Probably tonight. We talked about this.”
Stiles whimpered softly. “Please. I want to be with you.”
He chewed his bottom lip before adding. “I want to take your knot.”
The air left Stiles’ lungs in a sharp whoosh as his back hit the wall. He blinked, suddenly eye to eye with Derek, feet dangling.
“Stiles,” Derek growled, eyes flashing a dangerous blue. “Now’s not the time to test my patience.”
“I’m not,” Stiles whispered, his face burning under the intensity of Derek’s gaze. “I want to know… what it feels like.”
In case this is his last chance.
Derek set him back down on the ground, to Stiles’ dismay and backed away.
The alpha shook his head, hands flexing at his sides. “I could hurt you.”
“You won’t,” Stiles said, sure. Certain. But Derek still looked unconvinced.
Stiles clenched his jaw, frustration rising. “If you love me—”
Derek growled and stepped in, clapping a hand over Stiles’ mouth. “Don’t you dare,” he hissed. “You’re being a brat. Something’s clearly got you upset, and we should talk about it—while I drive you home.”
He dropped his hand and turned away, likely heading to get dressed.
Stiles’ chest heaved, vibrating with anger. He slammed the loft door closed with a loud bang.
Satisfaction flared as Derek’s back muscles twitched in a subtle flinch.
“I thought you wanted me,” Stiles hissed, voice tight with emotion. Tears welled in his eyes, but he refused to let them fall. “I thought you couldn’t wait to fuck me.”
Derek sighed, stopping beside the couch. “You know I do. And you know I can’t.”
“Then why—”
“You’re still too young,” Derek snapped, not unkindly, but firm. “You haven’t even presented yet—”
Stiles’ heart clenched. “And what if I never do?”
Derek turned toward him, but Stiles looked away, unable to face the alpha’s eyes.
"Is that what this is?” Derek asked, but Stiles stubbornly refused to answer, glaring down at the floorboards.
“Oh, kitten.” Derek sighed, moving to settle onto the leather couch. “Come here.”
Stiles shook his head.
“Please?”
He hesitated, tucking his chin to his chest before slowly padding over and sitting beside the alpha.
“Look at me.”
Stiles glanced up timidly, meeting Derek’s warm, silvery hazel eyes.
“I don’t care about that,” Derek said gently.
Stiles’ brow furrowed, lips parting to speak—but Derek held up a finger, cutting him off.
“I would love to breed you,” Derek admitted, his warm palm settling over Stiles’ thigh. “Watch your stomach swell with our pups.”
His hand gave a light squeeze. “But that’s not required,” he added, leaning in to nuzzle along Stiles’ hairline. “I’ll fuck you regardless, kitten.”
Stiles inhaled sharply, heart racing.
“But not before you’re ready—”
“I’m ready,” Stiles interrupted, tilting his chin up toward the alpha. “Please, alpha. I want you to take me. Make me yours.”
Derek groaned, his expression conflicted, but Stiles pressed on.
“Please,” Stiles whispered, grabbing Derek’s hand and guiding it higher. “I want you to take me as your mate. No more courting. No more sneaking around.” He sucked in a sharp breath. “I need it.”
Derek’s jaw ticked, tension building in the silence that stretched between them. Then he exhaled slowly.
“Once we do this, kitten, there’s no going back.”
Stiles broke into a grin, throwing himself forward and wrapping his arms tightly around Derek. “I know. Thank you!”
Derek caught him by the shoulders, gently pushing him back. “Don’t thank me yet, kitten.”
Stiles sobered, shifting his expression to something more serious.
“If you stay with me tonight, I won’t be able to control myself like I usually do.” Derek’s hands slid lower, his thumbs stroking along the skin exposed by the collar of Stiles’ oversized T-shirt.
“You won’t be sleeping tonight, kitten. I’ll have you—in every way imaginable.”
Stiles’ face flushed red, but he nodded without hesitation.
“Say it,” Derek growled.
“Okay,” Stiles whispered, his heart pounding against his ribs.
“Good.” Derek’s gaze was dark, hungry, and it made Stiles shiver.
“Come on,” he said. “Let’s get you in the bath.”
Stiles blinked. “Bath? I’m not dirty.”
“Not exactly… but you smell like your home,” Derek murmured, leaning in to inhale deeply. “I want you to smell like me, kitten.”
“Oh.” Stiles nodded slowly. “Alright.”
Derek pressed a kiss to Stiles’ hair before standing and guiding him upstairs.
Stiles trailed behind him, their fingers laced together as Derek led him through the alpha’s bedroom.
He froze mid-step, eyes locking on two oddly shaped items scattered on the bed. His favorite T-shirt—the one he always wore when staying over—lay neatly beside them.
“What are those?” he asked, tugging on Derek’s arm.
“Hm? Oh.” Derek glanced at the mattress, blinking like he’d just remembered their presence.
“Don’t worry about those right now,” Derek murmured, gently cupping a hand over Stiles’ eyes as he pulled him away.
“Wha—?” Stiles stumbled after him, his protests ignored. “But I wanna know now!”
He pouted as Derek finally let go, standing off to the side and rocking anxiously on his heels while Derek started running the bath.
“Get naked, kitten.”
Stiles startled at the sudden command. “’Kay.” He offered a bashful smile as he began to strip, kicking his sneakers off with a thump.
Goosebumps raced over his skin, making him shiver as he peeled off the last of his clothes.
When he looked up, Derek’s gaze had darkened—intense and hungry—making heat pool low in Stiles’ belly.
He couldn’t look away as Derek turned off the water and began unlacing his pants. Derek’s cock swung free, thick and long even while soft, resting heavy against a thatch of dark curls and full, hairy balls.
Derek stepped into the tub first, then extended a hand.
“Come here.”
Stiles’ heart skipped as he stepped forward, slipping his hand into Derek’s. Together, they settled into the warm water.
This wasn’t the first time they’d bathed together, but it was the first time doing so with the knowledge that something more was going to happen.
Stiles chewed his bottom lip, his nerves bubbling beneath the surface as Derek’s hands moved slowly over his skin.
The alpha spread a soft, scented soap across Stiles’ pale, mole-dotted chest, then gently rinsed it away with cupped hands and slow passes. It didn’t take long for Stiles to melt back against Derek’s chest, soothed by the warm water and gentle touches.
“Hand me that bottle,” Derek murmured, pulling Stiles from the edge of sleep. He gestured to a container resting on the edge of the tub.
“Okay,” Stiles said softly, shifting forward to reach for it. It was a glass jar of organic coconut oil. “What’s this for?”
“I use it for my hair,” Derek whispered, his lips brushing Stiles’ ear, voice low and rough. “But we’re going to use it for a different purpose tonight.”
Derek’s hand slid over Stiles’, gently taking the jar from him.
“We are?”
“Mhm.” Derek unscrewed the lid and dipped his fingers into the oil before setting the open container aside. “Ready?”
“Yes?” Stiles whispered, uncertain of what exactly he was agreeing to—but trusting Derek completely.
He watched, wide-eyed and curious, as Derek’s hand slid downward—under the water and lower, until—
Stiles gasped, startled by the strange, unfamiliar sensation of blunt fingers brushing over his puckered entrance.
“Relax,” Derek murmured, voice husky in his ear, as a finger pressed inward—and then slid inside.
“Feels weird,” Stiles whispered, trying his best to stay still and not fidget as the finger moved deeper.
Derek chuckled, his breath warm against Stiles’ damp skin. “Does it?”
The finger curled, pressing in deep before slowly retreating, only to slide in again.
“Yeah.” Stiles jolted when Derek’s finger found a spot that sent a shiver racing up his spine. “Oh.”
Derek shifted behind him, crowding close. “You like that?” he asked, panting softly in Stiles’ ear.
“I don’t know,” Stiles murmured, face flushed as he squirmed, the unfamiliar pleasure spreading like electricity through his limbs.
“You don’t know?”
A whimper escaped him, hips twitching in place—caught between pulling away and pressing closer.
Derek’s arm wrapped around his waist, pulling him firmly back until Stiles could feel the heavy heat of Derek’s erection against him. He shuddered, nerves and anticipation tangling in his belly.
“You like it,” Derek said, voice low as a second finger began to press in beside the first, stretching him around the slow, firm pressure.
“Ah,” Stiles mewled, thighs squeezing together in a weak attempt to quell the overwhelming stimulation—it did nothing.
Derek’s fingers twisted and curled inside him, making him feel full in a way that sent his thoughts scattering.
“God,” Derek groaned, grinding against him. “You smell so good, kitten.”
Stiles sucked in quick, shallow breaths, chest heaving as heat coiled tighter in his gut. “I’m gonna come?” he whispered, unsure if it was even possible from this alone—but the pressure was building fast.
“Yeah?” Derek growled, teeth dragging gently over the curve of Stiles’ shoulder. “You think you can come untouched?”
“I don’t—” he gasped, a third finger sliding in with a burn that startled him but didn’t slow the rising pleasure. “I can’t—”
His body shook with the effort to hold still, broken little whines spilling from his lips as Derek’s fingers kept driving deep, hitting that spot again and again.
“I think you can.”
And he did.
“Der—ah!” Stiles choked, body locking up tight as the orgasm tore through him, white-hot and overwhelming, with Derek’s fingers still working him through every last wave.
"Good boy,” Derek praised, pressing kisses to Stiles’ skin. “You did so good, so perfect for me.”
Stiles twitched, brow furrowing as Derek’s fingers continued to lazily slide in and out of him.
“You’re opening up for me beautifully,” Derek groaned, nosing along Stiles’ pulse and breathing in deep.
“Can’t wait to be inside you,” he whispered, teeth grazing Stiles’ neck—then pressing down hard, nearly breaking the skin.
“Ow.” Stiles hissed, lifting a hand to tug at Derek’s hair. “That hurts.”
“Shit,” Derek exhaled, long and shaky, before kissing over the bite mark. “Sorry, kitten. My rut’s starting.”
Derek’s fingers slipped out—somehow feeling even weirder leaving than they had going in—but they were only gone for a moment.
Stiles watched as Derek gathered more oil, eyes fixed on the way his fingers flexed and smeared it around before moving back down.
Four fingers this time.
Stiles stiffened, making a choked sound of protest. “Alpha—”
“Shh,” Derek whispered, pressing his forehead to Stiles’ shoulder. “I know. I know.”
He whimpered as the fingers wiggled and pressed inward, the slide seeming to go on forever until they finally stopped.
Stiles glanced down, chest heaving, half-expecting to see a bulge in his stomach.
“I’ve gotta thoroughly prep you,” Derek murmured, lips trailing warm and wet across his skin. “Don’t wanna hurt you on my knot.”
Stiles swallowed hard, words failing him. All he could do was breathe through the intense stretch.
It felt endless, the room filled only with their labored breathing and the soft slosh of water around them.
“Okay.” Derek’s hand withdrew suddenly. “That’s enough.”
Stiles squeaked, startled, as he was suddenly shifted—legs lifted into Derek’s arms, spread wide in a way that made his face burn.
“Derek?” he gasped, feeling the hard, throbbing press of Derek’s cockhead nudge at his slick, stretched rim.
He trembled, grabbing at Derek’s shoulders behind him as a wave of fear and anticipation crashed over him.
“Shh,” Derek grunted, voice strained, as he dropped one leg to grab more oil—his hand disappearing under the water.
Slicking himself, Stiles realized, just before Derek’s arm hooked back under his thigh. Then he was pushing up.
Stiles’ breath punched out of him as Derek’s cockhead slipped inside. “Uh—”
“Fuck,” Derek’s voice cracked, thick with tension as his hips made slow, shallow thrusts.
“Ah—” Stiles squeezed his eyes shut, struggling to breathe as Derek filled him, stretching him wide and deep, until it felt like there was no space left inside him.
“So good, kitten,” Derek slurred, nuzzling his neck. “So good.”
Stiles whimpered in relief when their hips finally pressed flush, his chest rising and falling with sharp little gasps of air.
The relief didn’t last, not with Derek immediately setting a smooth, relentless pace, making the water slosh violently around them.
“Derek—” Stiles gasped, eyes wide as the alpha’s cock slid over that spot with brutal precision.
“Alpha,” he moaned, head thunking back against Derek’s solid shoulder, blunt fingernails digging into the older man’s skin. “Ah—”
“Yeah,” Derek growled, hips snapping up with force, making Stiles see stars. “Your alpha.”
Stiles’ thighs trembled, muscles twitching with overstimulation as the water splashed harshly, some spilling over the edges of the tub.
“Der—” he choked, eyes squeezing shut as he was fucked to the very edge of his endurance.
“Gonna fill you up, kitten,” Derek groaned, nails biting into Stiles’ thighs. “Gonna knot you—pump you full of my seed.”
Stiles shuddered as he felt it—the thick swell of Derek’s knot beginning to press insistently at his rim, tugging at him, demanding entrance.
“I’m scared,” he whispered, voice cracking as he turned his head, seeking Derek’s face. His eyes burned.
“Shh,” Derek rumbled, immediately capturing Stiles’ bitten, swollen lips in a deep, anchoring kiss.
The distraction worked—just enough—because the next moment, Derek’s knot popped inside with a hard, rough thrust.
Stiles hiccuped, breath catching on a strangled sob at the overwhelming stretch, the fullness verging on painful as Derek went rigid beneath him.
Their lips broke apart, foreheads pressed together as they panted, open-mouthed and gasping into each other’s air.
Stiles trembled in Derek’s arms, the water slowly settling around them.
“You did so good,” Derek panted, gently lowering Stiles’ legs and helping him shift into a more comfortable position.
Stiles whimpered—the movement stirred the knot still lodged inside him, making the heavy fullness flare again.
“Such a good kitten,” Derek murmured, pressing slow, reverent kisses to any bit of skin he could reach. “Just relax. I’ll take care of you.”
Stiles nodded, small and jerky. His cock, which had been half-hard toward the end, was now softening as his body went bone-limp in Derek’s embrace.
In fact, he must’ve dozed off, because the next thing he knew, they were separating with a slick, wet sound that left him feeling hollow and empty.
He flushed, flailing a little as Derek lifted him gently, steadying him on trembling, slim legs outside the bathtub.
It wasn’t until his teeth began to chatter that Stiles realized he was shivering—though Derek caught on first.
The alpha immediately grabbed a large, fluffy towel and wrapped it around Stiles’ shoulders.
It was soft and smelled like snuggle-scent boosters. Stiles let out a pleased little purr, nuzzling into the fabric while Derek began drying his hair.
His hair wasn’t too wet—just a bit damp with sweat—so Derek moved lower quickly, toweling off the rest of Stiles’ body with methodical efficiency.
After Stiles was fully dry, he clutched the towel around himself and watched as Derek grabbed another towel to dry off.
His throat bobbed, eyes flicking down to Derek’s cock, still hard and flushed. The tip gleaming almost menacingly in the bathroom light.
“You’re still… hard,” he whispered, lifting the towel a little higher and ducking his chin self-consciously when Derek looked at him.
“Alphas in rut don’t go soft, kitten,” Derek said, lips curling into a knowing smirk as Stiles flushed deeper.
“Oh.”
Stiles watched as Derek tossed his towel into the hamper, the muscles of his back rippling with the movement.
“Come on, kitten,” Derek murmured, turning back to him and holding out a hand. Stiles hesitated before passing over his towel.
“Let’s get to bed,” the alpha added, grabbing the jar from the edge of the tub.
Walking felt awkward—Stiles was painfully aware of the wet, stretched sensation between his legs. He felt a faint trickle slide down his inner thigh and wished he still had the towel to hide behind.
Derek must’ve noticed his stilted gait, because he chuckled, leaning down to nuzzle against Stiles’ ear. “Something wrong?”
“No,” Stiles whispered, ears burning as he fidgeted, eyes flicking to the strange objects still sitting on the bed. “Just—” He bit his bottom lip, feeling Derek’s warm palms sweep slowly over his sides. “I’m leaking…”
Derek groaned behind him, nosing harder into the crook of Stiles’ neck. “Yeah?”
Stiles shivered at the heat of Derek’s breath against his skin.
“Bend over. Show me.”
Stiles jolted, spinning to face Derek with wide eyes. “What?” he squeaked, mortified.
Derek’s gaze was dark, intense, glowing red with hunger. “I wanna see.”
Stiles squirmed under the weight of that look, butterflies fluttering wildly in his stomach.
“…Okay,” he whispered nervously, stepping hesitantly up to the bed.
He felt open and embarrassingly exposed as he crawled onto his hands and knees on the bed.
Behind him, Derek inhaled sharply, and Stiles shivered, acutely aware of the alpha’s gaze raking over his skin.
“Spread yourself open,” Derek panted, and a slick pap pap pap filled the air.
Stiles glanced over his shoulder, breath catching in a sharp gasp when he saw Derek stroking himself—his hand moving fast and hard over his slick length.
“Come on, kitten,” Derek groaned, fangs glinting between parted lips. “Spread your ass cheeks. Show me.”
Stiles hesitated, unsure how to manage it, then slowly lowered his chest to the bed so he could reach back. His face burned as his fingers spread himself open, the motion awkward, exposing.
His hole fluttered uselessly, trying to clench shut even as more of Derek’s seed trickled out.
“Fuck,” Derek growled, the wet sound of him stroking himself growing louder, more frantic.
“So beautiful,” he rasped, making Stiles whimper and squirm in place.
“Look so delicious like that,” Derek groaned—then suddenly he was there, crowding over Stiles, heat and strength pressing down.
“God, I can’t not fuck you,” the alpha whispered, voice low and rough—almost apologetic—before he slammed in with one sharp thrust.
“Ah!” Stiles cried out, back arching as the breath was punched from his lungs.
“Sorry,” Derek groaned, but he didn’t sound sorry at all. His hips immediately set a harsh, deep rhythm.
Stiles tried to crawl away, fingers clawing at the blankets, but Derek’s grip on his hips was iron. He yanked Stiles back to meet every brutal snap of his hips.
“Der—ek,” Stiles choked, voice breaking as pleasure and pain licked up his spine, leaving him trembling, undone beneath the alpha.
“Feel so good,” Derek panted, the air echoing with the sharp slap of skin on skin, broken ah ah ahs falling from Stiles’ lips.
“So fucking perfect.”
“Uh—ah!” Stiles squeezed his eyes shut, sucking in sharp, hiccuping breaths—only to have them knocked right back out again.
His fists clenched tightly in the comforter, Stiles’ erection bobbing with each thrust.
Derek’s grip on his hips was firm—hard enough to leave bruises—but the pain only seemed to intensify the pleasure.
Each inward stroke of Derek’s cock dragged perfectly over that sweet spot, making stars burst behind Stiles’ eyelids.
His cock dribbled precum onto the mattress, the stimulation relentless.
It was all too much.
“Fuck—” Derek hissed, and Stiles felt it: the thick, hard pressure of the alpha’s knot.
“Alpha!” he gasped, eyes flying open just as the knot shoved inside with a slick, wet pop.
Everything went white.
The world faded as Stiles floated, overwhelmed, barely aware of the sticky warmth sliding up his stomach to drip onto the sheets beneath.
His own release.
He blinked slowly, vision refocusing on the shapes further up the bed.
Derek was rumbling behind him, hands warm and slow as they stroked over Stiles’ sweaty skin.
The fullness inside him pulsed, growing with each second as Derek’s knot swelled.
“What is that?” Stiles whispered, still breathless but drawn by curiosity as he stared at the object further ahead.
“Hm?” Derek made a questioning hum, shifting slightly to glance over Stiles’ head.
“Oh. That?” The alpha stretched, and the movement tugged gently at Stiles’ stretched rim as he reached forward, grabbing the item and bringing it closer.
“It’s a knotting toy,” Derek murmured, holding it up for Stiles to see.
“Oh.” Stiles flushed as realization hit—he recognized the shape: a silicone asshole.
Derek flipped it around, revealing the opposite end. A silicone vagina.
“I don’t use this side much anymore,” Derek said, his voice low and husky in Stiles’ ear.
“I prefer the other side… while thinking of you.”
“Me?” Stiles blinked, his brow furrowing. He always struggled to understand how an alpha like Derek—strong, solid muscle and sharp features—could look at him, all slim limbs and gangly awkwardness, with such hunger.
“Yeah,” Derek groaned, grinding his knot deeper and making Stiles gasp. “You, kitten. Only ever you.”
“What about that?” Stiles asked after a beat, pointing to another object further up the bed.
“Bite guard,” Derek said, licking lazily at the curve of Stiles’ neck.
“To keep me from biting myself. I can heal, but it still hurts after.”
A light nip on Stiles’ shoulder made him shiver.
“In the deepest part of rut,” Derek continued, voice thick, “I won’t be able to help myself. I’ll bite any available flesh.”
Stiles whimpered, instinctively hiking his shoulders to protect his neck.
Derek chuckled and rolled them onto their sides, drawing a sharp gasp from Stiles as the movement shifted the knot inside him.
“Don’t worry, kitten,” the alpha murmured.
Stiles shivered when Derek’s hand slid over his sticky, bloated stomach.
“I’ll put the guard on before I get too out of it,” Derek added, voice low and reassuring.
But when Derek pressed gently against the swollen mound, Stiles twitched, the overwhelming fullness spiking sharply.
“Stop,” he gasped, grabbing Derek’s hand and pulling it away, ears burning.
“What’s wrong?” Derek asked, resting his chin over Stiles’ shoulder.
“It just… feels uncomfortable,” Stiles admitted, cheeks flushed.
“Does it?” Derek asked, grinding his hips forward. The sudden push nearly toppled Stiles, but Derek’s firm arm around him kept him in place.
“How about that? How’s that feel?” Derek whispered, his lips brushing the shell of Stiles’ ear.
“It feels…” Stiles’ eyes fluttered closed, breath hitching as Derek continued those slow, teasing grinds. “Good,” he whispered.
“Yeah?” Derek’s hand slipped free from Stiles’ grasp, sliding down to hook beneath his thigh and lift it.
The new angle made Stiles whimper, his insides trembling from the sensitivity as Derek’s knot pressed deeper with each subtle thrust.
“And this?” Derek whispered, his hot breath ghosting across Stiles’ skin.
“G-good. Real good,” Stiles panted, turning his face into the comforter in embarrassment.
Derek’s hips moved more deliberately, grinding harder and deeper, stirring up the come inside him.
“O-oh,” Stiles moaned, his fingers curling into the comforter beneath them.
“Alpha,” he mewled.
“Fuck,” Derek grunted, suddenly flipping them so Stiles was flat against the mattress, pressing down with his full weight as his hips rolled relentlessly.
“Kitten,” he growled.
Stiles’ eyes flew open, lips parting in breathless little moans and whimpers as Derek fucked him deeper, again and again.
"Gonna keep you like this,” Derek grunted, hooking his chin over Stiles’ pale shoulder.
“Bloated and full of my come.”
Stiles whimpered, hands trembling where they clutched the blankets.
“I can’t breed you,” Derek panted into his ear, voice dark and husky. “But you’ll smell so strongly of my seed, everyone will think you’ve been bred.”
Fangs pressed against his throat, making Stiles gasp and shiver.
“Toy with your little pink nipples until you produce milk like a pregnant omega…”
Stiles’ lips parted, broken little ah ah ahs spilling from his mouth as Derek’s knot drove deeper, hard and relentless.
“Would you like that, kitten?” Derek moaned, inhaling Stiles’ scent.
“Yes,” Stiles gasped, eyes welling up as pleasure made him tremble. “Please—”
The bed creaked beneath them, the headboard thudding rhythmically against the wall as Derek rocked into him.
“Alpha—” Stiles choked out, his whole body shaking like a leaf. “I’m gonna come—”
“Yes,” Derek growled. “Do it, kitten.”
Sharp teeth sank into his shoulder, nearly breaking skin, but Stiles barely registered the pain over the overwhelming, dizzying pleasure.
“Come on my knot.”
Stiles wailed, the sound high and broken as he came, body spasming before collapsing bonelessly, passing out from the intensity of his orgasm.
The end?