Stepdad!william Afton - Tumblr Posts

Stepdad! William Afton x Reader – ‘Boyfriend’ (SMUT)

Summary: You bring home a boy. Your mother is excited. Your stepdad…not so. Cue to stepdad William Afton staking his claim and reminding you who you truly belong to.

Fandom: FNAF (inspired by the movie verse) Pairing: William Afton x Reader Rating: Explicit Warnings: Explicit Sexual Content (SMUT), Age difference, Older man x Younger woman, stepdad x daughter!reader, dub-con, implied con, taboofic, spanking, fingering, cunnilingus, p in v sex, secret!sex, jealousy!, threats, hair pulling, unsafe sex, creampie, breeding!kink implied, infidelity, implied established stepdadxreader, William Afton is not a nice man, William Afton is a bad dad.

Boyfriend

Flashing him an encouraging smile, you stepped into the warmth of your home, the chill from the outside air dissipating. Your mother bustled about in the kitchen, the familiar scents of her cooking enveloping you like a comforting embrace. As she turned to greet you, her gaze fell upon Sam, who stood just behind you.

"Mom," you said, motioning towards the young man beside you. "Remember Sam?"

Sam was undeniably handsome; his blond hair framed a chiseled face adorned with bright green eyes that seemed to capture every bit of light in the room. His tall frame filled out the doorway, exuding a quiet strength that immediately caught your mother's attention. Her eyes twinkled as she looked him over.

"Nice to meet you,” Sam said politely, extending a hand that your mother eagerly shook. Her eyes traced over his broad shoulders and the white toothy smile.

"You are on the football team, aren’t you?" she replied warmly, her excitement barely contained.

“I am,” Sam confirmed, his smile broadening, reminiscing you of ancient statues of Greek Heroes and Gods. He was picture-perfect. Just the right type of boy to take home to impress your mother with.

"Actually, Mom," you hesitated for just a moment before continuing, voice shy and eyelashes fluttering, "Sam and I are dating.”

"Really?" Her eyes widened, a grin spreading across her face. "Oh, how wonderful!" She clapped her hands together in delight.

“Your daughter is a gem,” Sam said smoothly, words slipping out like velvet. You could just see how your mother seemed to approve of him.

He placed his bag on the kitchen counter and seemed to look around for something, then his eyes traveled to you, a question within them. You tried to suppress a grin and shook your head, and Sam’s eyes traced back to your mom.

"Excuse me," Sam said, "Can I use the…?”

"Of course, dear." Your mother pointed down the hallway. "Second door on the right."

As soon as he disappeared from sight, your mother pulled you into a tight hug. "So spill, when did this happen? Didn’t you tell me you didn’t like that boy?”

“Just today,” you said with a small grin. “And perhaps I changed my mind. Try and date. Like someone kept nagging I should.”

“Finally,” your mom said, raising her palms in the air. “I have been praying you would go on a date, even if it was just once. You really need to get some experience. And Sam seems… nice.”

“I know,” you said, tongue pressing against the back of your teeth pensively. “He’s not my type…”

“I wasn’t going to say that,” your mother said hesitatingly, though you could tell she had been thinking it. Then she flashed you another smile and gently placed her hand on top of yours. “I am happy you are finally crawling out of your shell. You’re a pretty girl,” at this you scrunched your nose and she caught sight of it, “yes, you are. Even if you think differently.”

Then she let go of your hand and let out a happy sigh. “Oh, I remember when I was your age.”

You rolled your eyes as you both said, “Dated a new boy each week.”

You looked at your mom and you both laughed. “I know, mom,” you said. “I know. But I’m not like that.”

“I know,” she replied with a gentle smile, her head resting on her hands and her elbows leaning on the kitchen counter as she looked at you. “I'm so happy for you, sweetheart! He seems like a great guy."

You couldn't help but smile. "He really is, Mom."

Sam returned to the kitchen, a sheepish grin on his face, and you both settled down at the table to work on your homework assignment. Your mother, sensing that you two might want some time alone, gave you both a teasing smile.

"If you get hungry you may take from these,” she gestured at the food she’d been making. “I'll be working in the attic if you need anything," she said before exiting the kitchen.

Sam eyed the snacks your mother had been making and picked one up, taking a bite. You followed his example.

The assignment before you was boring, and quite soon both of you were sighing. You noticed how Sam was moving closer to you with every opportunity he got, brushing an arm against you or a leg. It was exactly why you had chosen to date him. You just knew he would make a move and never took schoolwork seriously. He was that type of guy. Hands-on. Thinking of one thing only.

"God, I hate this assignment," Sam mumbled as he flipped through his textbook, his green eyes filled with annoyance.

"Tell me about it," you agreed, rubbing your temples. "Let's take a break and put on some music."

"Great idea." Sam pulled out his phone and connected it to a small speaker. Soon, the sultry sounds of bachata filled the air, and you couldn't help but sway along to the rhythm.

"Come on," Sam stood up, offering you his hand. "Let's dance."

You grinned, taking his hand and allowing him to lead you into the dance. His strong arms guided you effortlessly, the heat between you two palpable as your bodies moved in sync. The world around you seemed to fade away as you lost yourself in the music and Sam's embrace.

The sound of a door slamming shut jolted you back to reality and you looked straight into the fury blue eyes of your father.

William Afton, your stepfather, stood in the doorway, his face twisted with anger. You immediately felt a knot of fear tighten in your stomach.

"Uh, hi Dad," you stammered, trying to sound casual even as your heart raced.

"Who is this?" he growled, his cold blue eyes narrowing as they fixed on Sam. Pretty young boy. Everything the opposite of what he was.

"Th-this is Sam," you replied, your voice trembling slightly. "He's my boyfriend." Not quite, but dating counted, right?

"Boyfriend?" William sneered, his distaste evident. "And that makes this okay? You think I'd let something like this happen under my roof?"

"Sir, we were just—" Sam began, only to be cut off by the sharp, icy glare William shot him.

"Enough," William snapped, his tone making it clear that there would be no further discussion. You could see Sam's jaw clench in frustration, but he wisely held his tongue.

You forced yourself to take a calming breath and lowered your gaze submissively. "I'm sorry, Dad," you murmured, hoping that would be enough to placate him for now.

William's lips curled into a sneer as he paced the room, his anger radiating in waves. "You're too young to be dating," he spat, his words like venom. "Don’t know what you’re getting into, do you? So eager for a boy’s cock."

You felt your cheeks flushed and shyly stared at the floor, letting your stepdad’s words wash over you like waves.

“And you,” he then said, aiming his fully attention at Sam now. “I know your type. Think you can seduce a naïve young girl, fuck her on your cock once and then throw her aside like a cheap whore. Laugh about it afterward with your friends. You think my daughter’s easy like that?”

Sam shifted uncomfortably under the weight of William's gaze, visibly shrinking back from him. You felt your cheeks burn with humiliation, wanting nothing more than to disappear.

"Maybe your mother thinks it's cute," William continued, turning back to you again, his voice dripping with disdain. "But I know better. She'd love to see you become a whore, wouldn't she?"

"Hey, that's not fair—" Sam started to protest, but a single raised hand from William silenced him.

"Enough." The word was barely more than a growl, and it sent shivers down your spine. You couldn't help but feel betrayed by Sam's inability to defend you, even as you knew that standing up to William was like trying to stop a hurricane with an umbrella.

"Look," Sam muttered, avoiding your eyes. "I should go. We can finish the homework later, or something."

And it was exactly this something that had the hope inside if your tummy plummeting. As Sam rushed to your front door, you followed him with featherlight steps.

Somehow this was what you had expected of him. All tough and popular in school, but when facing a bigger man he would shrink away.

It irked you that he didn’t even try to stand up for you, that he accepted this defeat without so much as turning to your dad and telling him off. Nope, he just went to the door. Left you to your dad. Coward.

You slammed your hand on the door before he could open it, forcing him to lock eyes with you.

"Wait," you whispered. "Why didn't you say anything? Why didn't you stand up for me?"

"Your dad,” Sam spoke through gritted teeth but hesitated, as if he were uncertain why he even had this conversation with you. At the end of the hallway, you could feel your stepdad’s towering presence, heavy and dark.

Like a shadow watching over the two of you.

“Your dad’s just...too much for me," Sam finally admitted, his voice tense. He paused and looked at you. "I'm sorry."

"Stepfather," you corrected him softly, feeling a strange mixture of relief and disappointment. "He's my stepfather."

Sam shrugged, his bag on his back, the zipper open still, showing the folders and maps you were supposed to be working on.

"Either way, I don't want to be around him." With that, Sam stepped out the door, leaving you alone to face the storm that was William Afton.

You slowly turned around, the shape of your stepfather like a dark shadow at the end of the hall. The displeased curve of his lips was visible from where you stood.

He only needed to point a finger to the floor, signaling that you had to return to him. No words were needed. Step after careful step, you walked closer, entering the room before he closed the door behind you.

“Well now,” the words came out low and rasped as your stepdad placed his large hand on the small of your back, guiding you back to the kitchen table before roughly pushing you toward it. You tumbled over by the sheer force, chest pressed against the cold wood as items that had still been on the table now clattered to the floor.

Strong hands moved past your hips, pulling your pants and panties down in one swift motion, exposing your neither regions. Cold air brushed past your skin and you subdued a shudder.

"You think it's okay to bring someone else home, hmm?" William asked, his voice cold. "Think I wouldn't find out?"

"Dad, I-" you began to protest, but he cut you off.

"Quiet." He didn't give you a chance to respond before he delivered the first spank, sharp and sudden. You gasped at the mix of pain and pleasure that shot through your body. His hands were big, even against the supple flesh of your ass.

"Count," he instructed, his breath heavy.

“One,” you said, words forced out through gritted teeth. Another slap, the stinging slightly fiercer than before. Your hands curled into fists in front of you, trying to support your weight on your elbows as you stood bent forward over the table. Another smack. “Two.”

You heard the deep breathing of your stepdad as it increased. He was getting excited. “You brat,” you heard him murmur in between slaps. The stinging increasingly becoming worse, the pain a delightful pleasure that made you hum.

“It’s clear Dad here has got to teach you a lesson not to be such a little slut,” each of those final words was punctuated by another firm slap to your buttocks, making you see stars and wheeze with pleasureful pain.

You whimpered out the numbers, bracing yourself for another smack. As the spanking continued, your cheeks burned and your arousal grew. There was something thrilling about being at his mercy, about submitting entirely to him.

Finally, your stepdad stopped, and you waited in anticipation for another slap. But it didn’t come. Instead, you felt his strong hands massaging your tender flesh. His fingers, rough from years of working on animatronics, sent shivers down your spine as he caressed your sensitive skin, separating your now sore cheeks and pushing them back together again.

"Such a pretty little thing, aren't you?" he purred, his hot breath fanning across your wet pussy. You could tell by the tone of his voice that he'd gotten exactly what he wanted, and it both terrified and excited you. He leaned down, his tongue teasing your slit before he captured your clit between his teeth, sending a jolt of pleasure through your body.

"Dad," you moaned, unable to contain yourself any longer. He hummed in response, his lips working expertly on your most sensitive spot. The nibbling the flick of his tongue to your sensitive clit, it was all too much, and you had to bite the back of your hand in order to keep from crying out loud. Suppose your mom would hear.

No, she could never find out!

Chapped lips curved against your sensitive sticky-wet skin. The little hairs of his beard tickled you as William continued to pleasure you with his mouth. You felt a familiar tension building within you. Desperate for release, you wriggled on the table, wishing you could somehow grasp his hair and urge him on. But he held your hips tightly in his hands, grip strong enough to create finger-shaped bruises, his head buried between your legs. All you could to was squirm against the table, wishing you could see him as he ate you out.

"Please," you begged, the sound nearly a sob. William chuckled darkly, slipping his fingers inside you and curling them just right. It was all too much – the pressure, the pleasure, the pain – and suddenly, you were falling apart, your orgasm washing over you in a tidal wave of sensation.

Your body trembled, pussy pulsing wildly around his finger and tongue, slick gushing forward and into his awaiting mouth, coating his lips.

As he withdraw, you heard a dark chuckle. Your world spun and slowly got back into focus, and you realized you were still on the table, your weight resting on your elbows as you stared at the photographs of your family hanging on the wall.

You were grateful that the table supported you, because your legs were shaking and you didn’t think you could stand on your own right now.

"Good girl," William praised, his voice low and dangerous as he withdrew his fingers from your quivering core. As you lay there, catching your breath, you could feel the lingering pulse of your orgasm still radiating through your body. But William wasn't finished with you yet.

"Stay bent over," he commanded, his voice rough and demanding. You obeyed, anticipation causing a shiver to run down your spine. The sound of his zipper being undone filled the room, and you couldn't help but feel both nervous and excited for what was about to happen.

"Such a tight little pussy," he growled as he positioned himself behind you, one hand gripping your hip while the other tangled in your hair. He pulled you back, forcing you to arch your back even more as his cock pressed against your entrance.

"Please," you whimpered, desperate for him.

"Who do you belong to?" he asked, his voice dark and dangerous.

"Y-you," you stuttered, feeling your face flush with embarrassment.

"Say it," he demanded.

"I belong to you, Daddy."

"Good girl," he praised before thrusting into you without warning, his cock splitting you open and filling you completely. A gasp tore from your throat as you struggled to adjust to his size, but William didn't give you any time to recover. He set a brutal pace, pounding into you like an animal, his grip on your hair keeping you in place.

"Fuck, you're so perfect," he snarled, his breath hot on your neck. His words sent a shudder through you, and you couldn't help but push back against him, wanting to take him deeper.

"Harder, please," you begged, needing to feel his complete control.

"Greedy little thing," he chuckled, somehow managing to drive into you even harder. "You love this, don't you?"

You parted your lips to answer, the feelings overwhelming you. But he was quicker.

“Quiet,” he snarled in your ear, “We don’t want your mother to hear what we’re doing here, do we?”

Hard as it was, you managed a nod – even with the way he kept a grip tightly on your hair. Your body ached for him, and every thrust of his hips seemed to drive you further under his spell.

"Tell me who you're gonna fuck from now on," he demanded, his voice a low growl.

"Only you, Daddy."

"Damn right," he muttered as he continued to pound into you, each thrust making your body shudder with pleasure. You felt the firm outline of his hips, the softness of his belly pressing against your back as he thrust inside of you. It shouldn’t feel so sinful, but it did. Your much older stepfather was making you feel so good, that it dazed you.

You could feel another orgasm building, but before you could reach that peak, William's grip on your hair tightened as his own release approached.

"Fuck!" he snarled, his hips slamming into you one last time as he came, filling you with his hot seed. His grip changed on you while you cried out, walls fluttering around his hard shaft. His hand on your hip and the one pulling your hair ensured that you were pulled flushed against him, making sure he stayed buried deep inside for just a little longer than needed while your cunt pulsed around him.

Slowly, your vision started to stabilize again. The warped pictures on the wall came back into focus and your pussy’s grip on his cock became looser, not pulsing as frequently as your body started to relax.

His panting breaths filled the room as he slowly pulled out, releasing your hair from his grip.

“Now, what do you say?” you heard his low voice rumble as you slumped forward on the table, catching your breath.

"Thank you, Daddy," you murmured, feeling the slick escape from the depths of your core, sliding all the way down your legs. You slowly got up and pushed yourself away from the table, facing William.

He stood a few feet behind you, his pants resting on his hips, cock and balls proudly on display. Liquid coated his softening shaft, and you watched entranced as he started to tuck it back inside his pants before zipping his fly.

You followed his example, bending over to pull your pants up, wincing at the discomfort you felt deep inside your core where he had been battering your cervix without a care in the world. You prayed your mother wouldn’t walk in right now, but luckily, she didn’t.

When you were presentable enough again – making sure your hair wasn’t quite the mess and ignoring the cold sticky liquid that ran down the inside of your thigh – you took a step closer to your stepdad.

“Mr. Afton,” you said, knowing he liked it when you addressed him so formally. And it worked. You saw the spark in his blue eyes. Licking your lips, closed the distance between you, standing on your tiptoes to give him a gentle kiss.

Once the kiss broke, your eyes met his blue ones. The pupils so dilated they seemed almost black.

“That’s better,” your stepfather said, his hand resting on the small of your back, keeping you close to him whilst towering over you. Just the height of him made you feel small, but then there was that gaze and the firm tone he used when he spoke to you. So demanding, so in control.

"Remember," he warned, his eyes dark and intense. "I don’t ever want to see you take another boy home again, or the consequences will be far beyond anything you can ever imagine.”

As a spark lit off in your eyes, he caught sight of it and his grip on you tightened. The corners of his lips pulled into a tight line. “I am serious, do not challenge me on this one. It is unlike what you are thinking of.”

And somehow, those words brought with them a sense of danger that made you actually feel cold on the inside, like he wasn’t threatening to fuck you hard as a punishment, but that he was threatening whatever man you might want to take home in future times. Like a death sentence. Would he kill them?

“You're mine, and I don't share," he rasped.

You nodded, your heart racing at his possessiveness. Somehow, it felt both terrifying and thrilling to be so completely claimed by this dangerous, powerful man.

And as you looked into his eyes, you knew your plan had worked.

“I promise to be good for you, Dad,” you said, words a whisper.

He let go just in time before the door flung open and your mother entered the room.

“Ah, sweetheart, you’re back,” she said, bright smile on her face as she walked over to give William a hug and a kiss on his lips. His blue eyes darted past her to meet yours and you quickly glanced aside.

Once they broke apart, your mother turned toward you. “Where’s Sam?” And then a frown formed on her face as she sniffed the air. She must have been quick in recognizing the scent and deducing what must have happened, for you could see her lips curl into a small smile and her eyes twinkle,

“Well, at least I hope you’ve used protection,” she muttered as she brushed past you to return to the snacks she prepared earlier in the kitchen.

“Want a taste of something sweet,” she curiously asked your stepdad, holding up one of the plates with prepared snacks.

William’s grin widened. “Oh,” he murmured, “I think I already have.”

~ Fin ~

AN: I am open for prompts. Want to read more? Why not check my masterlist, I write a lot of reader-inserts, including x William Afton, Arthur Fleck, The Grabber, Arthur Harrow, Severus Snape, and many more. ~

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