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Derek. I don’t like this.” Stiles examined the glass jar suspiciously. His face soured as he read the handwritten label: Alpha Supplements. “You don’t even need these. You’re more than enough Alpha for me.”
Though Derek knew Stiles was just appealing to his ego to win the argument, the comment made his cock twitch. More than enough Alpha for me. Derek loved when his headstrong, willful lover displayed even the smallest hint of submission. But he wanted more.
“They’re completely harmless, baby.” Derek took the jar from Stiles’s hands. “They’re made with all-natural ingredients. I’ll be fine, Stiles.”
“All natural means nothing. Do you know what else is all natural? Death. Death and dying.”
He felt Stiles’s anxiety surge, an electric current of worry buzzing the air. Derek liked submission, but not at the expense of his mate’s peace of mind. He hated when Stiles worried.
“Baby boy, relax.” Softening his voice, he stepped into Stiles’s space. “If you really don’t want me to take the supplements, I won’t.” Derek grabbed him by the waist and pulled him close. “I just thought you’d be interested in some of the benefits.” He rolled his hips forward, pressing his growing bulge against his lover’s slighter frame. “Like increased virility.”
“Increased what?” Stiles squeaked. “You’re already plenty virile, Der.” His voice was shaky, but not with worry.
Derek peppered a patter of kisses across his boyfriend’s forehead, earning a smile. He tightened his grip on Stiles’s waist, pulled him even closer, and nuzzled into the warm crook of his neck. “The supplements are formulated to elevate all of my alpha properties. Dominance. Strength. Vigor.”
The scent of worry had ebbed into something warmer, more domestic.
“Okay, fine. Take the damn supplements.” Stiles carded his fingers through Derek’s hair, tugging him closer. “For research purposes.”
After chugging the disgusting, magically enhanced protein shake, Derek paced the house like a caged animal.
He didn’t want to worry Stiles, but the supplements hit harder than expected. Every nerve felt raw, exposed. He was unsettled, unmoored, unsatisfied. He needed something—anything—but if he didn’t get it soon, he was going to lose his mind.
He double-checked the dosage instructions from the apothecary, but his thoughts were already fuzzy. The words blurring together.
“Derek?”
“Huh?”
“Derek!”
“What?”
“You’re squeezing me… too tight…”
“Dammit. Baby. Sorry.” He hadn’t even realized he’d pulled Stiles into a crushing bear hug, or how long he’d been standing in the middle of the living room, smothering the boy against his chest.
“It’s alright, big guy.” Stiles’s voice came out a little breathy. “You gonna let me go anytime soon?”
“Fine.”
Stiles slipped away and hurried to the kitchen to grab a glass of water.
“Drink this, babe. I’m going to make you lunch. Maybe it was a bad idea to take the supplements on an empty stomach.”
The image of his mate cooking for him, fetching him water… Derek liked that. A lot. He chugged the water in one go and shoved the empty glass back toward Stiles.
“More.”
“Um. Okay. Why don’t you sit down and let me take care of you.”
Derek grunted in agreement and hopped onto the countertop right beside Stiles’s workspace.
“Totally not what I meant, but whatever,” Stiles muttered under his breath.
Stiles had been right. Food helped. After downing three sandwiches, two apples, a couple of glasses of water, and a beer, Derek felt a little more like himself again.
“Didn’t mean to go full caveman on you, love. Sorry.”
“It’s okay. It was hot, in a toxic way. But I was pretty nervous you were actually losing your mind. How are you feeling now?”
“Good. Great, actually.” Derek’s voice sounded bright. “My senses are sharper. I’ve got tons of energy. And your…best friend…is in a very good mood.”
“Stop referring to your dick as my best friend. You’re my best friend. Your dick is my second-best friend. Scott is my third-best friend.”
“You’re weird. I love you, bestie.”
Derek leaned in for a kiss. Stiles relaxed, expecting one of Derek’s intimate I-love-you kisses.
The moment their tongues touched, Derek saw white.
“Hi, yes, good, thanks. Yeah, thanks for asking. Something’s wrong with Derek. No, he’s not in danger—at least I hope not. But I’m pretty sure I’m in danger. So yeah, it’d be great if you could come over for a house call like right immediately now. Derek, NO. Put me down. This is unaccept—”
Scott stared at his phone, already grabbing his keys and motorcycle helmet. “I hate alpha supplements.”
Meanwhile…
Derek felt everything for his Stiles: immense affection, immense pride, immense gratitude. The feelings were so vast they short-circuited his brain. Too many stimuli. He needed to focus. He slung Stiles over his shoulder like he weighed nothing and marched through the house, searching for the perfect place to settle down with his mate.
He knew he was being too rough (the delicious little squeaks spilling out of Stiles told him that much) but he couldn’t stop to think about it. He needed to breed. His mate was perfect, so the conditions had to be perfect.
Stiles wriggled harder, his whines growing louder. Derek instinctively swatted his ass—once, twice. The whines melted into whimpers, and Derek felt Stiles’s little cock harden against his shoulder. Good. Perfect.
He stopped in front of the bedroom door. It smelled like them: earthy and dark like Derek, breezy and bright like Stiles. He loved the scent. He couldn’t wait to make it stronger.
Derek flung Stiles onto the bed. The boy landed with a startled “oomph.” He instantly regretted tossing his delicate body so roughly. Derek pounced, covering him completely, checking for injury with frantic hands and nose.
“Stiles,” he growled, voice wrecked. “Mine.”
“Yours, yes. I’m—” Stiles’s words cut off as Derek ripped his shirt open with one sharp tug, buttons flying. The alpha’s mouth latched onto his neck, sucking a dark mark while his hands shoved Stiles’s jeans and underwear down in one brutal motion. Stiles’s dick sprang free, already leaking.
Derek’s own cock was throbbing, thicker and heavier than usual. He ground his hardness against Stiles’s thigh, leaving a wet streak of pre-cum. “My Stiles.”
Stiles moaned, hips bucking up. “Take me.”
The display of submission sent a rumble of possessiveness through Derek’s core. He flipped Stiles onto his stomach, yanked his hips up, and buried his face between his cheeks without warning. His tongue pushed inside, wet and insistent, while one thick finger joined it almost immediately. Stiles cried out, pushing back, and Derek growled in approval, adding a second finger, scissoring him open.
When Stiles was trembling and begging, Derek finally pulled back, slicked his shaft with spit and pre-cum, and pushed into the wet, tight warmth. Inch after thick inch stretched Stiles open until Derek bottomed out with a guttural groan.
“Stiles. Your pussy. So good.”
He didn’t give Stiles time to adjust. Arousal had burned away patience. Derek pulled back and slammed in again, setting a punishing rhythm. The bed creaked violently. Stiles’s fingers scrabbled at the sheets, trying to find purchase. His moans turned into broken sobs of pleasure.
Derek’s hand slid under Stiles, wrapping around his cock and stroking in time with every brutal thrust. “Gonna make you my bitch. Stiles, my bitch.”
Stiles climaxed first—hard. “ALPHA!” He shouted. The most beautiful sound Derek had ever heard. Stiles clenched around the fullness inside him as waves of ecstasy rolled over him.
Derek snarled, hips stuttering, and followed seconds later. He didn’t pull out. Instead he rolled them onto their sides, still buried deep, and kept rocking slowly, fucking his own release deeper while he kissed Stiles’s neck.
The supplements didn’t let him soften. Within minutes he was hard again, still inside. Derek growled low, flipped Stiles onto his back this time, hooked his legs over his shoulders, and drove back in with a wet, filthy sound.
“I need more,” he rasped. Lucidity was slowly returning, his words coming easier: “Gonna breed your pussy until you can’t walk.”
Stiles nodded, unable to speak. His eyes were glassy, blissed-out, fucked silly. His thoughts were nebulous. Somewhere in he back of his mind, he knew his intelligence was taking a back seat…making room for his alpha’s dominance claim its territory. Right now, he didn’t need intelligence. He just needed his: “Alphaaa, PLEASE.”
Derek answered by folding him in half and pounding him into the mattress. The second orgasm hit Stiles even harder, and Derek followed with a roar, flooding him again. He stayed locked inside, grinding lazily, one hand possessively splayed over Stiles’s belly like he could already feel it swelling.
They lost count after that. Derek took him on his back, on his stomach, bent over the edge of the bed, and finally sitting on his lap while Stiles rode him with shaking thighs. Each round was slower but deeper, the alpha’s knot swelling larger every time, stretching Stiles to the edge of too much. Every thrust was accompanied by filthy praise—“Good boy,” “Take it all,” “Gonna keep you full forever”—until Stiles was a sobbing, cum-drenched mess, covered in bites and bruises and Derek’s scent.
When the supplements finally began to ebb, Derek collapsed beside his wrecked, glowing boyfriend and pulled him close. Stiles’s belly was visibly distended with cum; every tiny shift made more of it leak out. Derek pressed a gentle kiss to his sweaty temple, the feral edge softening back into something sweeter.
“Still with me?” he murmured.
Stiles laughed breathlessly, voice hoarse. “Barely. Best research ever.”
The front door slammed open downstairs.
“Stiles? Derek? You guys okay?”
“Get out!” Derek yelled.
“Sorry, Scott! False alarm. Go home! Love ya, buddy.
“You’ve gotta be kidding me.” Scott mumbled. “Love ya.”
At the sound of the door locking, Derek’s hand founds it’s way to Stiles’s sensitive hole.
“Ready to give me more of your pussy?”
“Whatever Alpha wants, he gets.” Stiles spread his legs, smiling proudly.
Derek made a mental note to stock up on Alpha Supplements.