Chapter Text
Derek just lay there, his eyes glued to Stiles’s cock, completely mesmerized by the thick veins running along its length. It was gorgeous, almost too perfect to be real. For a moment, Derek wondered if this was even happening. Was Stiles really here, standing in front of him, hard and ready, wanting *him*? Or had Derek dozed off and slipped into some wild, unbelievable dream? He felt pathetic, old, and out of place, but the sight of Stiles’s cock was enough to make his mouth water and his heart race.
Stiles, clearly impatient, broke the silence with a smirk. “So, are you just gonna lay there staring at it like it’s a museum piece, or are you gonna get over here and suck it?” His tone was casual like he was asking about the weather, but there was a sharp edge of dominance to it that sent a shiver down Derek’s spine.
Derek’s throat felt like sandpaper, his voice barely above a whisper as he stammered, “I… I can’t. Eli might hear us. What if he wakes up?”
Stiles rolled his eyes, clearly not impressed with Derek’s hesitation. “After the way, I just wrecked your boy’s tight little ass? Trust me, he’s out cold. He could sleep through the apocalypse right now.” Stiles took a step closer, his gigantic cock bobbing slightly as he moved. “Now quit stalling, old man. Get that big, fat ass of yours over here and worship this cock like I know you’ve been dying to.”
The words hit Derek like a punch to the gut, raw and unapologetic. Stiles wasn’t asking—he was demanding. And despite the voice in Derek’s head screaming that this was wrong, his body was already moving, sliding off the bed and onto his knees. His heart pounded as he stared up at Stiles, the younger man’s cock inches from his face. Derek’s hands trembled as he reached out, his mind racing even as his body gave in to the undeniable pull of desire.
Derek didn’t look away, not even for a second, as he slowly sank to his knees in front of Stiles. His hands trembled slightly as he reached out and wrapped his fingers around Stiles’s thick, massive cock. It was still a little sticky from earlier, still warm from being inside Eli, and Derek could feel the heat radiating from it, the way it pulsed in his hand like it had a heartbeat of its own. His mouth went dry just holding it, but he couldn’t stop himself.
A drop of precum glistened at the tip, and without thinking, Derek leaned in and swiped his tongue across it, savoring the salty, musky taste. The flavor made him shudder, his own body reacting instantly. When he looked up, Stiles’s hazel eyes were locked on his, burning with pure, unapologetic lust. It was clear—Stiles wanted Derek just as badly as Derek wanted him, and Derek wasn’t about to let this moment slip away. He was going to give Stiles everything he deserved.
Pushing all his doubts and worries aside, Derek focused on the task at hand. He gently pulled back Stiles’s foreskin, exposing the sensitive head, and swirled his tongue around it, slow and deliberate. Stiles let out a low groan, his fingers tightening in Derek’s hair, and Derek knew he was on the right track. He grabbed Stiles’s firm, round ass cheeks with both hands, pulling him closer as he took more of that thick, anaconda-like cock into his mouth. Stiles’s hips jerked forward instinctively, and Derek could feel the younger man’s control slipping.
“Oh fuck, Mr. Hale,” Stiles moaned, his head thrown back as Derek worked his mouth around him. “You suck cock so damn good. You like the taste? Huh? Cleaning your son’s ass off me? Yeah, that’s it—fuck, yes—clean my big fucking cock.”
Derek hated to admit it, but Stiles’s filthy words were doing something to him, sending sparks of heat straight to his own groin. The thought of what he was doing—sucking the same cock that had just been buried in his son—should have disgusted him, but instead, it only made him want more. He took Stiles deeper, his throat relaxing as he let the younger man thrust gently into his mouth. Stiles’s hands gripped his hair tighter, guiding him, and Derek didn’t resist. He was completely lost in the moment, in the taste, in the way Stiles’s cock filled his mouth and stretched his lips.
Stiles’s moans grew louder, more desperate, and Derek could feel him getting closer. “Yeah, just like that,” Stiles growled, his voice rough and uneven. “You’re such a good fucking cocksucker, Mr. Hale. Bet you’ve been dreaming about this, huh? Bet you’ve been wanting to taste me since you first saw me.”
Derek didn’t answer—he couldn’t. His mouth was too busy, his mind too fogged with lust to form words. All he could do was keep going, keep sucking, keep giving Stiles exactly what he wanted. The older man was on his knees, completely consumed by the task at hand. His mouth was stretched around half of Stiles’s thick cock, his tongue working eagerly as his hand stroked the rest. Stiles let out a low groan, his fingers tangling in Derek’s hair as he guided him. “Oh god, yes, just like that,” Stiles moaned, his voice rough and dripping with pleasure. “Suck my balls, Mr. Hale. Yeah, just like that. Fuck, you’re a natural at this—just like Eli.”
Derek’s cheeks burned at the comparison, but he didn’t stop. He couldn’t. Stiles’s words were filthy and intoxicating, and they only made Derek want to please him more. Stiles kept talking, his voice a mix of praise and dirty promises. “From the moment I saw your boy—those lips, that ass—I knew I had to have him. I wanted to own him, to breed him, to mark him as mine. And I did. Just like I’m gonna do to you.” Stiles’s grip tightened in Derek’s hair, pulling him back just enough to look him in the eyes. “You want that, don’t you? You want me to shoot my load deep inside that hot, massive, hairy ass of yours, Mr. Hale?”
Derek couldn’t answer with his mouth full, but he moaned around Stiles’s cock, the sound vibrating against him. It was enough for Stiles, who smirked and pushed Derek’s head back down. “That’s what I thought,” he said, his voice dark and satisfied.
But Stiles wasn’t done. He kept talking, his words painting a vivid, filthy picture. “You wanna hear about the first time I owned your son?” he asked, his tone teasing and seductive. Derek hesitated for a second, his mind racing, but then he nodded, his mouth still working Stiles’s cock. Stiles chuckled, low and deep. “Good. Because I’ve been dying to tell you all about it.”
Derek was completely lost in the moment, his mouth working Stiles’s cock as the younger man recounted the story in vivid, filthy detail. Stiles’s voice was low and husky, each word dripping with lust as he described the first time he’d taken Eli. “It was the first day of practice,” Stiles began, his fingers tightening in Derek’s hair. “We were the last ones in the locker room, just the two of us. We were showering, and he dropped the soap—‘accidentally,’ he said, but I think he was offering himself up to me. Either way, I wasn’t gonna pass up the chance.”
Derek moaned around Stiles’s cock, his own hand stroking the base as he listened intently. Stiles smirked, clearly enjoying the way Derek was hanging on his every word. “I bent him over right there in the shower and shoved my tongue into his tight little hole. He didn’t fight me, didn’t even try to stop me. He just stayed bent over, moaning while I ate him out, getting him ready for my cock. The steam was everywhere, and all I could hear was his moans echoing off the walls. He was a virgin, but you wouldn’t have known it from the way he was reacting. It was like he’d just discovered heaven. And then he came—hard. His whole body shook, and he shot streams of cum all over the shower floor. I had to hold him up just to keep him from collapsing.”
Stiles paused, his breath hitching as Derek’s mouth and hand worked him perfectly. “Oh fuck, just like that, Mr. Hale. God, you’re almost better than Eli. Keep that up, and you’re gonna make me blow.” Derek pulled off for a moment, his own cock throbbing as he looked up at Stiles, desperate to hear the rest. “What happened next?” he asked, his voice rough with need.
Stiles grinned, clearly enjoying Derek’s eagerness. “You really wanna hear how I popped your son’s cherry, you dirty old man?” Derek nodded, his eyes dark with desire, and took Stiles back into his mouth without hesitation. “Alright, since you’ve earned it,” Stiles said, his voice dropping to a seductive growl. “I couldn’t wait any longer. I wasn’t about to give him time to adjust—I just shoved my whole cock into him. All eleven inches. He screamed, partly from the pain, but mostly from how good it felt. I pinned him against the shower wall and fucked him hard, sawing in and out of his tight little hole. I kissed his back, his neck, left marks all over him—I wanted to make sure everyone knew he was mine.”
Stiles’s thrusts into Derek’s mouth became more erratic as he got closer to the edge. “I ruined him for anyone else, Mr. Hale. His hole is mine now. It was so tight, squeezing me every time I hit his prostate. I couldn’t hold back—I roared so loud they probably heard me miles away, and then I filled him up with my cum. Afterward, I pulled him into a sloppy, wet kiss and told him he was mine. And you know what he said? ‘Okay.’ That was it. We’ve been fucking like you saw tonight for months now, and I still can’t get enough of him.”
Stiles’s voice broke as he reached his climax. “Oh fuck, Mr. Hale, I’m gonna blow. Oh fuck, oh fuck, oh fuck—YES!” His body tensed, and he came hard, his cock pulsing in Derek’s mouth as he emptied himself. Derek swallowed every drop, his own cock throbbing with need as he listened to Stiles’s ragged breathing. The room was filled with the sound of their heavy breaths, the air thick with the scent of sweat and sex. Stiles looked down at Derek, a satisfied smirk on his face. “You’re full of surprises, old man.”
The taste of Stiles was a little bitter, but somehow still good—really good. Derek wanted more, *needed* more. He hoped this wasn’t just a one-time thing, that there’d be more chances to share moments like this with him. As Stiles finished cumming and started to come down from his high, he glanced down and noticed Derek’s cock, still hard and throbbing.
“You haven’t come yet?” Stiles asked, raising an eyebrow with a sly grin. “Well, we can’t have that. Get up on the bed.”
Derek didn’t need to be told twice. He scrambled onto the bed, his heart pounding as Stiles knelt in front of him. Without hesitation, Stiles took Derek’s cock into his mouth, and holy *shit*, it was incredible. If there were an Olympics for sucking dick, Stiles would’ve blown past first place. His warm, soft tongue moved like silk, sliding all over Derek’s cock as he bobbed up and down. His hands gripped Derek’s thighs, his nails digging in just enough to send shivers up Derek’s spine. When Stiles looked up at him with those crystal-blue eyes, Derek was done for. He came hard, shooting every last drop of cum into Stiles’s mouth. And Stiles didn’t miss a beat—he swallowed every drop, never breaking eye contact.
When it was over, Stiles stood up and gave Derek a quick kiss. It wasn’t as passionate as the one he’d shared with Eli earlier, but it still made Derek’s heart race. Stiles pulled back, smirking. “Thanks, man. That was incredible,” he said, already heading toward the door.
“Wait!” Derek blurted out, louder than he meant to. Stiles stopped and turned, raising an eyebrow. Derek gulped, his voice trembling as he continued, “I thought… I thought you were going to make me yours. I thought you were gonna fuck me.”
Stiles’s signature evil grin spread across his face. “I was just messing with you, Mr. Hale. I needed to know you wanted this as much as I do,” he said, his voice dripping with mischief. Before Derek could respond, Stiles was on him, flipping him onto his back and spreading his legs. Derek’s heart raced as Stiles buried his face between his cheeks, eating him out like he was starving. It was the first time Derek had ever experienced anything like this, and Stiles was going at it like a man possessed, his tongue working Derek’s hole as if it were the most delicious thing he’d ever tasted. Derek’s hands gripped the sheets, his moans filling the room as Stiles ate him in a way he’d never imagined.
Derek’s heart was pounding as Stiles ate him within an inch of his life, his big, round ass on full display. Stiles didn’t waste any time—he leaned in, his hands gripping Derek’s cheeks and spreading them apart. His hands clenched the sheets, his body trembling as Stiles’s tongue circled his rim, teasing him before diving in deeper.
“Oh god,” Derek moaned, his voice shaky as Stiles’s tongue worked him open. Stiles wasn’t gentle—he was hungry, almost desperate like he couldn’t get enough. His tongue pressed inside, fucking Derek’s hole with slow, deliberate strokes, making Derek’s toes curl. Stiles’s hands moved to Derek’s ass cheeks, squeezing and kneading the flesh before pulling them apart even wider, exposing him completely. Derek felt a sharp-smack-as Stiles’s hand came down on his ass, the sound echoing through the room. Derek groaned, the sting only adding to the overwhelming pleasure.
“Fuck, you’ve got such a fat ass, Mr. Hale,” Stiles muttered between licks, his voice muffled but dripping with lust. He spanked Derek again, harder this time, leaving a red handprint on his cheek. Derek’s hips bucked involuntarily, pushing back against Stiles’s face, begging for more. Stiles chuckled, his breath hot against Derek’s skin. “You like that, huh? You like getting your ass eaten like a slut?”
Derek couldn’t even form words—he just nodded, his eyes closed as Stiles went back to work. This time, Stiles added his fingers, circling Derek’s hole with one slick digit before pushing it inside. Derek gasped, his body tensing for a moment before relaxing into the sensation. Stiles’s tongue didn’t stop, licking and probing as his finger worked deeper, curling and searching until he found that sweet spot. Derek’s back arched, a loud moan tearing from his throat as Stiles hit his prostate for the first time.
“There it is,” Stiles said, his voice dark and satisfied. He added a second finger, stretching Derek open as his tongue continued to tease his rim. The combination was overwhelming—Stiles’s fingers pressing inside him, his tongue lapping at his hole, and the occasional sharp -smack-of his hand on Derek’s ass. Derek was a moaning, trembling mess, his cock leaking precum onto the sheets beneath him.
“You’re taking my fingers so well, Mr. Hale,” Stiles purred, his voice low and teasing. “But I think you can handle more.” He added a third finger, stretching Derek even wider, his tongue still working him open. Derek’s moans grew louder, his hips rocking back against Stiles’s face and fingers, desperate for more. Stiles spanked him again, the sound sharp and stinging, and Derek cried out, his body shaking with pleasure.
“You’re gonna take my cock next,” Stiles said, his voice rough with desire. “ C'mon get on four, you’re gonna love it.” He pulled his fingers out slowly, giving Derek’s ass one last, firm smack before leaning back. Derek was panting, his body on fire, his hole still twitching from Stiles’s tongue and fingers. He didn’t know if he was ready, but he knew one thing—he wanted it. He wanted Stiles to claim him, to make him his, just like he’d done to Eli. And from the look in Stiles’s eyes, he wasn’t planning to hold back.
Derek’s heart was racing as he got on the doggy style position as Stiles positioned himself behind him, his massive cock pressing against Derek’s stretched, wet hole. Derek could feel the heat radiating from Stiles’s body, the weight of his gaze as he loomed over him. Stiles’s hands gripped Derek’s hips, his fingers digging into the soft flesh of his round and gigantic furry ass as he leaned down, his breath hot against Derek’s ear.
“You ready for this, old man?” Stiles taunted, his voice low and dripping with condescension. “Your boy took it like a champ his first time. Let’s see if you can handle it half as well as he did.”
Derek’s face burned with a mix of shame and arousal, but he didn’t protest. He wanted this—needed it—even if it meant enduring Stiles’s cruel words. Stiles lined himself up, the thick head of his cock pressing against Derek’s virgin entrance. Derek tensed, his body instinctively resisting, but Stiles didn’t let up. He pushed forward, just enough to make Derek gasp.
“Relax, Mr. Hale,” Stiles said, his tone mocking. “You wanted this, remember? You begged for it. Now take it like the slut you are.”
Derek clenched his teeth, his hands gripping the sheets as Stiles pushed in further. The stretch was intense, almost too much, but Stiles didn’t stop. He kept going, inch by agonizing inch until Derek felt like he was being split in two. Stiles paused when he was about halfway in, giving Derek a moment to adjust, but his words were anything but comforting.
“God, you’re tight,” Stiles groaned, his voice rough with pleasure. “Tighter than Eli, even. Guess that’s what happens when you’ve never been fucked before. But don’t worry, I’ll loosen you up. By the time I’m done, you’ll be begging for it just like your boy does.”
Derek whimpered, his body trembling as Stiles began to move, pulling out slowly before pushing back in. The sensation was overwhelming—pain and pleasure mixing in a way Derek had never experienced. Stiles’s hands moved to Derek’s fat ass, squeezing and spreading him open as he fucked him with slow, deliberate thrusts.
“That’s it, take it,” Stiles said, his voice dark and commanding. “You’re doing so good, Mr. Hale. Who knew you had it in you? Guess you’re not as straight as you look.”
Derek moaned, his face buried in the mattress as Stiles picked up the pace. The pain was fading, replaced by a deep, aching pleasure that made Derek’s head spin. Stiles’s cock brushed against his prostate, sending jolts of electricity through his body. Derek’s cock was hard again, leaking precum onto the sheets as Stiles fucked him harder, his thrusts becoming more erratic.
“You like that, don’t you?” Stiles sneered, his hands gripping Derek’s hips tightly. “You like being used like this, don’t you? Admit it, you’re just as much of a slut as your son. Maybe even more.”
Derek couldn’t deny it—he did like it. The shame, the humiliation, the way a much younger man was dominating him—it all fed into the pleasure coursing through his body. He moaned loudly, his hips pushing back against Stiles’s cock, begging for more.
“That’s it, take it like a good little slut,” Stiles growled, his voice rough with desire. “You’re mine now, Mr. Hale. Just like Eli. And I’m gonna make sure you never forget it.”
Stiles’s thrusts became harder, faster, driving Derek closer and closer to the edge. Derek’s moans grew louder, his body trembling as Stiles hit his prostate over and over again. Stiles leaned down, his breath hot against Derek’s ear as he whispered, “You’re gonna come for me, aren’t you? Just like your boy did. Come on, Mr. Hale, let me feel you squeeze my cock.”
Derek couldn’t hold back any longer. With a loud cry, he came embarrassingly fast, his cock pulsing as he shot ropes of cum onto the sheets beneath him. Stiles groaned, his thrusts becoming erratic as he chased his own release. With a final, deep thrust, he buried himself inside Derek, his cock pulsing as he came for a second time and filled Derek's hole for the first time with his cum.
Derek collapsed onto the bed, his body trembling as Stiles pulled out. He felt empty, used, and completely spent, but there was a strange sense of satisfaction too as he felt his son's boyfriend's cum leaking out of him. Stiles leaned down, pressing a kiss to Derek’s shoulder before standing up.
“Not bad for your first time, old man,” Stiles said, his voice teasing but with a hint of admiration. “Guess being a fat ass bottom, big cock hungry slut runs in the family.”
Derek didn’t respond, his mind still reeling from the experience. But as he lay there, his body still tingling with pleasure, he realized something—he wanted more. And from the look in Stiles’s eyes, he knew this was just the beginning of more amazing orgasms.
“But don’t get too comfortable. If you want more of this—” Stiles gestured to himself, “—you’re gonna have to earn it.”
Derek’s breath hitched. “Earn it?” he asked, his voice hoarse.
Stiles leaned down, his face inches from Derek’s. “Yeah, earn it. You think I’m just gonna drop everything and come running whenever you’re horny? Nah. If you want me, you’re gonna have to play by my rules.”
Derek swallowed hard, his heart pounding. “What… what are the rules?”
Stiles straightened up, crossing his arms over his chest. “Rule number one: you’re available whenever I want you. No excuses, no questions. Rule number two: you do exactly what I say when I say it. And rule number three—” he paused, his smirk widening, “—you don’t tell Eli. Not a word. This stays between us.”
Derek’s stomach churned at the thought of keeping this from his son, but the recent memory of Stiles’s cock buried deep inside him was enough to silence any protests. He nodded slowly, his voice barely above a whisper. “Okay.”
Stiles’s grin turned predatory. “Good boy.” He reached down, ruffling Derek’s hair like he was a pet. “I’ll be in touch. Be ready.”
With that, Stiles turned and walked out of the room naked, leaving Derek alone with his thoughts.