Manipulative Armin - Blog Posts

Forbidden

Pairing: Dilf!Armin x Reader

Word Count: 3.1k

Warnings: Cheating, Use of the word sir, Fingering, Slightly manipulative Armin

Quick Summary: you’re a babysitter for the Arlert family and Mr. Arlert shows you just how much he appreciates your company

Notes: This was written for @1252291​‘s Forbidden Collaboration! Thank you so much for letting me join the collab, I had so much fun writing this!

You greeted the lovely couple at the door, opening it wide enough for them to slip in amongst their quiet conversation. Mrs. Arlert didn’t give you so much as a hello before she was stomping up the stairs and to her room. Mr. Arlert was nicer than his wife though; he actually offered you a hello as he entered the house and a bit of conversation before offering to drive you home.

He talked to you briefly about the things he normally asked you about; how college was going for you, how the kiddo was that night, what you both had for dinner, and if you were ready to go. It was the same conversation you had with him every Friday night when he brought you over to watch his kid as he and his wife went out for their weekly date night.

Mr. Arlert led you to his car which was parked closest to the door. He was just as gentlemanly as he had been in his youth; he opened the front door for you, led you to the passenger side of his car and even opened that door for you as well. He’s your dream man, through and through, it’s something you realized six months ago after taking the job as his babysitter. He was everything you’ve ever wanted in a man.

As you drove towards your campus, Armin hummed to the music playing from the radio. He didn’t talk much since he had asked all of his regular questions for you at the door of his house. He didn’t have much more to say. So, he sang instead for you, humming the lyrics of most of the songs coming from his car.

You sat silently in his passenger seat. You watched as the buildings passed and the moon followed you and Mr. Arlert through the streets of the small college town. He was driving you back to your dorm building, driving carefully as he passed by drunk students and familiar buildings with your classes inside.

“I actually went to school here as well,” Armin said he passed by the Humanities building on the right, “I was an English major and a Psychology minor, believe it or not.”

You tilted your head towards the man, “A Psychology minor, I can believe - but an English major - I don’t think it suits you.”

Armin smiled at you, “What would you assume my major would be?”

“Something in medicine, probably. You’re just so formal, like a doctor. I could even see you being a physical therapist.” You shrugged at the man. “But, I do know that you teach poetry, so I guess it makes sense that you didn’t major in medicine.”

“Smart,” Armin said as he turned back to the road, “You used your context clues.”

You giggled into your hand, turning back to the buildings passing through your window. Armin wasn’t expecting that noise to come from your mouth, you let out such a lovely little laugh that it genuinely surprised him. He could hardly pay attention to the road afterwards, just looking at you with a new light in his eyes. He didn’t care what he had to do, he was willing to do it in order to hear that giggle come from your mouth again.

You turned towards the campus to hide your grinning face from Mr. Arlert. He kept sneaking peeks at you even though your focus wasn’t on him, he was hoping to catch a glimpse of your beautiful features. He almost didn’t hear you as you spoke, all of his attention focused on your person rather than your words.

“Mr. Arlert,” You nearly whispered into the passenger side window, “I really admire how deeply you and Mrs. Arlert love each other-”

“Oh, don’t.” Armin smiled bittersweetly to his steering wheel. “It’s really not something you should admire.”

You now looked at Mr.Arlert with wide eyes, “What do you mean?”

“We just-” Armin sighed before continuing. “We aren’t as perfect as you think we are.”

“What are you talking about?” Your mouth set itself into a pout as you stared at the man you’ve looked up to for so long. Not only was he an amazing man, he was an amazing father, and an amazing husband. And, to think a part of that was false drove you to a deep sense of sadness, like the feeling of finally meeting your role model and only realizing they were just another asshole in the world.

Armin grinned pityingly at you, “We’re just human, dear.”

You furrowed your eyebrows at Mr. Arlert, confused with how somebody could crush your heart so casually with one sentence. You tried to hide your obvious disappointment with this new information, but it was so hard. Mr. Arlert was such an amazing man, he deserved a more real love - and he, above everything, deserved somebody who could give that to him.

Mr. Arlert drove dangerously slower than the speed limit and he even seemed to keep missing the road leading to your dorm building. It was as if he were successfully buying more time with you - pretending he didn’t know the familiar way back to your dorm, and even getting lost in the mostly abandoned parking lot once he finally found it.

You sighed before eventually turning to Mr. Arlert, “Why do you stay with her then? If you’re only pretending to be happy, then why don’t you leave your wife?”

You noticed a moment too late that maybe the question was a bit much. You were about to take the words back, quickly asking a more appropriate question. But, by the time your mind had thought of a second, better question, Mr. Arlert was already beginning to answer your last question.

Armin turned the car into an empty parking spot nowhere close to the front doors of the dorm building. He put his car into park before finally contemplating the question you asked him. He knew two answers, one answer that was true and the other answer being the one he knew you wanted to hear.

“I don’t know,” Armin answered, “I suppose it’s because-” Armin took a moment to think before continuing. “I guess it’s because I haven’t found the right person. I’m just stuck with my wife until I find somebody worth destroying that relationship for. It’s horrible, I know - I feel awful thinking this way, and thinking of these things.”

Armin ignored your face while he spoke, promptly avoiding the bright new look in your eyes. It was as if the world was coming together in the palm of your hands, like the puzzle pieces you’ve been collecting along the way were finally beginning to make a bigger picture. Mr. Arlert had said exactly what you wanted him to, even inviting you to fantasize about what his words could mean for you.

You said it yourself; Mr. Arlert was an amazing man and he deserved somebody who could give him real love. And, his wife wasn’t that person - he made that very clear, he was only with her because he had no other choice. And, you were sure Armin could find somebody out there in the world as a newly single silver fox. But, you also knew that he didn’t have to look so far for that real love, he could just look in his passenger seat for somebody who could love him unconditionally and indefinitely.

“It’s not,” You said as you gently laid a comforting hand on Mr.Arlert’s shoulder, “You deserve more than what she’s giving you, so nobody can blame you for wanting it.”

Wanting it was an understatement, Armin was practically frothing at the mouth from craving it. He couldn’t get through a single day without thinking about it - thinking about you. Thinking about how sweet your voice is towards him, even after hours of dealing with a child. Thinking about just how hard you giggle at his jokes, a soft laugh that echoes through his mind for hours afterwards. Thinking about just how slick and soft your thighs looked under the hem of your skirt, and how you seemed to play with his imagination when you bent over to pick up a toy in front of him. It was like you wanted him to stare, and like you wanted him to think about the feeling of your hips against his fingertips as he thrusts deeper and deeper into you from behind.

Armin turned slowly towards you, blue eyes sparkling thanks to the street light shining through his sunroof. His eyes watched your face carefully, afraid of missing a hint of discomfort. He wanted to lean into your touch - more than he’s wanted anything before in his life - but he would never allow himself to get closer to you if he knew you didn’t want him to.

“But,” Armin asked in a small tone, “Even if wanting something is okay, is having that same thing okay as well?”

You were suddenly hyper aware of Mr. Arlert’s eyes being glued to your lips. Your mouth was now dry, causing you to incessantly lick your lips, but nothing quite quenched the thirst your mouth craved. Being in this car alone with Mr. Arlert was turning your insides to mush, destroying your composure in front of his very eyes.

“Only if the other person wants it as well,” You said in a quiet voice only to be heard if Mr. Arlert were listening intently, “And I do.”

Armin’s eyes quickly glanced up to your own. His light blue eyes were shining with a new deepness of desire. He never felt this way with his wife - well, maybe once upon a time many, many years ago, but now - he only ever felt this way with you. He felt it from the moment he met you, from the moment you walked through his front door and into his house six months ago. It was like the dying flames of passion were suddenly reignited in his body.

And, he was so grateful that you could reverse what his wife had destroyed. He felt so thankful in fact that he wanted to prove to you how much he appreciates you. For babysitting his daughter, for making intellectual conversation, for wearing that skimpy little skirt you seemed to always be wearing around him - he wanted to show you just how much he appreciates everything you do, so he kissed you.

It was the only form of payment he could imagine, and he rather liked that it benefited himself as well as you. He liked that when he kissed you gently, you immediately pushed your mouth into his lips, only deepening the kiss. And, he liked that when he ran his hand gently through your hair, you moaned against his mouth, making him want to do the action over again and again. And - above everything else - Armin mostly liked that when he whispered how kissing you was wrong when he was married, you immediately answered with a plea for him to continue, swearing up and down that you wouldn’t tell a soul about what happened.

He liked how badly you wanted him, something his wife hasn’t shown him in many years.

Mr. Arlert’s rough hand was no longer in your hair, now instead on your smooth thigh. His calloused fingers moved under the hem of your small purple skirt, spreading your legs when he slid his finger down the crotch of your panties. The movement of his fingers had you moaning against his mouth as he continued to feel your throbbing cunt through the now wet fabric of your panties.

Your breath was hot against Armin’s mouth and it only encouraged him further. He could feel the ghost of a moan on your lips and he craved more. He wanted to hear you really moan for him, moan out in pleasure, moan out his name. He wanted to hear it all, every hiccup in your throat and every plea for him to go harder.

“Mr. Arlert,” You whispered breathlessly against his lips, “I want more, please.”

Armin chuckled to himself, “Mr. Arlert?” Armin leaned back from your face, taking in the sight of your delicate features illuminated by the streetlight above his car. Armin’s blue eyes carefully searched your face with just the ghost of a smile present across his lips. “You make me sound so old, just call me Armin.”

“But, Mr. Arlert-”

“Or,” Armin said with a soft grin, “You can call me sir.”

You raised your eyebrows, “Sir?”

Armin smiled, “Mhm, just like that.”

“Sir,” You mewled the word into his mouth, as Armin kissed you deeper. “Sir.” Between kisses, you whispered to Armin exactly what he wanted to hear. “Sir.” You wanted to please him, you craved to please him and to do so you had to do exactly what he asked of you. “Sir.” You would do anything he asked of you.

Armin practically whimpered into your mouth, “Say it again.”

Mr. Arlert’s hand is still under the hem of your skirt, his fingers brushing against your throbbing core. You could barely get an uninterrupted breath out, nevermind a full word. You were already overwhelmed by Mr. Arlert’s touch. Every graze of his fingertip against your body had you moaning desperately for more.

“Si-” Your word quickly turned into a moan out for Armin as his fingers plunged deeper into your panties. He was kissing you with each stroke of his fingers against your core, collecting the wetness that had settled there. Armin leaned back with a cocky smile against his lips, whispering a demand as he watched you struggle to speak.

“I wanna hear you say it again,” Armin said in a sweet tone contrary to the dirty things his fingers were doing, “Please, baby - if you say it again, I’ll do whatever you ask of me.”

Whatever you asked? Of course you knew he meant in a shorter time frame, but your mind couldn’t help but jump to everything you could ask him. You could ask him to divorce his wife. You could ask him to marry you instead and let you love him indefinitely. Or - you supposed, for now - you could ask him to fuck you dumb in the backseat of his car. But, someday you’ll ask him to dedicate his everything to you, hopefully someday soon if he fucked you well enough.

Armin fingers teased the sensitive skin under the fabric of your panties. He played you like a piano, tipping his finger in, out, and around. Each movement was agonizing and satisfying at the same time, you moaned out for him to do more but he only refused. He was serious about his request and he wouldn’t accept your plea if you didn’t call him sir first - even though he wanted it just as much as you.

He almost couldn’t take it, he wanted to be inside of you but you were taking your time with calling for him. He had to stop himself from talking you through the word, babying you into speaking the way he used to help his daughter. He just wanted to touch you, couldn’t you give him this?

“Say it or-” Armin’s hand started to pull back from between your legs- “I don’t do anything to you.” You quickly grabbed his wrist, keeping his fingers close to your skirt.

“Sir!” You practically shouted the word into his mouth. You just wanted him to touch you and it made your blood run cold to feel him pulling away. “Touch me, please just touch me, sir.”

“That’s my girl.”

Armin did as promised, he did as you asked after complying to his request. He touched you, his hand was back under your panties and dipping his thick fingers into your wetness. It was hard to focus on the praises he whispered between your lips, you were too engrossed by his fingers diving in and out of you under the thin fabric of your skirt.

Armin groaned into your mouth as your fingers dug into his bicep. You pulled his arm closer to your body, causing his hands to follow. You bucked your hips up into his hand as you pulled his fingers deeper and deeper inside of you, hoping he could reach all of the parts inside of you that had never been touched before.

Only Armin could satisfy you completely, not the idiots you’ve given yourself to before.

Mr. Arlert was more experienced than all of those other boys. He didn’t just push himself into you, completely unaware of your own pleasure. No, Armin took his time with you, he moved his fingers in and out of you to the same beat of the song playing quietly in the background.

And when his thick and rough fingers were already deep inside of you, he curled them. The movement brought out a whole different noise from you, more like a cry out for Armin. This noise was surprisingly better than the giggle he heard earlier, and he couldn’t get enough of it or you.

You could feel his fingers bringing you closer and closer to your climax. And he could feel it as well, feel the way your body sucked him into you in more ways than one; the way your entrance pulled his fingers in, the way your hips jutted sloppily into his arm, and the way your face scrunched up in pleasure.

It only took two more strokes of Armin’s hand before the internal band in your stomach was snapping and you were releasing all over Armin’s fingers and the crotch of your panties. You had never felt so empty once Mr. Arlert had taken his fingers from inside of you.

“Mr. Arlert,” You whispered to him once he had turned himself back to the steering wheel, readying himself to leave. You put your arms around him, touching his back and thigh before leaning close enough to say the words. “Do you want me to-?”

“No,” Armin said much too quickly for your liking, “How about we do that next time? If I stay out much longer, my wife will get suspicious.”

You nodded frantically, “Okay - okay, next time - next Friday?”

Armin nodded with a gentle smile, “Next Friday.”

He kissed you once before letting you leave. It was stupid to think that anything more could happen between you and Mr. Arlert - you knew that. But, you couldn’t help but feel giddy as you stepped out of the car and walked off towards your dorm building. You couldn’t wait for next Friday, and - more specifically - the night after babysitting when Mr. Arlert would drive you home.