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mskenway97 · 4 months

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Bot in flames

I have been wanting to write this for a long time and I started thinking about heat cycles in robots.

My mind was focused on bayverse optimus prime and I came up with all this.

Forgive me but I couldn't help but want to XD.

Bayverse Optimus Prime X Fem!Human!Reader

Summary: You are a new mechanic working at NEST after the problems in Egypt, you became very close to the autobot leader, until one moment he started to avoid you, the rest of autobots warnning to you. Until you find out why.

Occurs between revenge of the fallen and dark of the moon.

Words: 2,451

Warnings: heat cycles, belly budge, cumflation, masturbation, multiple orgasm, size difference,possessive, g/t

You had always been interested in technology, you had gone into mechanics although many people would not take you seriously in what you were doing. Until you started seeing something that caught your attention, the Mission City events.

A lot of people said it was a lie, a hoax… Other websites said they had witnesses and testimonies about giant robots. You tried to see more images but nothing.

Everything seemed to be a lie until a giant robot appeared on your TV telling you that you were not alone, that there were more beings in the galaxy. That even though everyone was scared, you were more interested but you were just a mechanic, no matter how much you wanted to meet them you were not going to find them, until you received a letter because of your knowledge, they were needed at the base of NEST.

They blindfolded you and put you in a black car without asking, like the movies, the ride was a bit long until you got to an interrogation room, showing if you had a criminal record, not to reveal the information here without ending up dead. Once finished they took you outside a huge hangar and put you on hold, until a middle-aged man who seemed to be the general, came to pick you up in person.

-Y/N, General Lennox we have seen that your knowledge in mechanics and your project of coexistence between machines and humans is unique. I'm just telling you try to stay calm, you're going to be surrounded by autobots. The first time is usually a surprise.

He wasn't lying when he took me to another hangar with huge beings of different sizes looking at you. I had a feeling of nervousness, butterflies and above all that he would not try to give me a heart attack. It was one thing to see fuzzy pictures on the web sites you had seen and another to see them in person…. Besides your height was not the tallest, you literally understood how the ants felt.

You saw the biggest of them all approaching, it seemed to be the leader, with red and blue flames, with what looked like parts of a truck, despite your situation it seemed interesting to you.

-Y/N, my name is Optimus Prime, leader of the Autobots…. It is a pleasure to meet you, we read your project, it caught our attention, in part we need more human allies that promise us their commitment. If you decide to leave I will understand your motives but if you stay you will be apprenticed to one of our best doctors as well as learning about the coexistence you seek. Do we have your word?

You were trying to calm down when you saw that huge being kneeling in front of you and the rest of them looking at you, seeing that your nervous system was somewhat altered by the situation. Trying to calm down until you felt Lennox's hand on your shoulder as they were waiting for your answer.

You nodded as your mouth had gone dry trying to speak, the giant black robot was amused by your nervousness, he moved closer showing his cannons causing you to stumble to the ground, making him laugh.

-I like this squishy…. I'm going to like working with you

Well in the rest of the news they started to introduce you to the rest of the team, you already knew names like Ratchet, Optimus Prime, Ironhide, Sidewispe, etc. And the rest of the facilities, they put you in charge of working with Ratchet.

The weeks of adaptation were somewhat curious, as you were startled by every scare the twins and Sidewispe gave you.

Ratchet carefully taught you the systems of a robot to take care of them carefully: you learned the different parts of the body of a cybertronian, Ironhide taught you the workings of the weapons although his demonstrations still scared you so much firepower that you reflexively hid behind his leg.

Your favorite sessions were with Optimus, even though he was the biggest of them all, he was very nice to you… You started to get a little more trusting as you told each other about different experiences. He told you about his culture, his planet… You were more and more interested, he was also interested in your customs, your history. Besides, I know that his way of treating you was to carry you in his servos with care, sometimes he was contemplating, with his finger he touched your cheek, it was a strange contact but you felt quite comfortable. He had also put you on his shoulder. You didn't know if it was friendship you had with this bot, but you were happy to finally have a confidant.

You had been in NEST for a few months now, you learned quickly but there was something that had been bothering you in the last week about the behavior of a certain autobot leader.

At first it seemed to you that he was stressed out from the missions in order to find Megatron but every time you were near an Autobot he would get sideways and also with the humans you were working with. You don't talk like before either, every time you tried to talk to him alone he would disappear saying he had something else to do. This was starting to bother you a lot but with the meetings you didn't have the time or the moment.

-Y/N aren't paying attention to the lessons…. - Ratchet said as he tapped me on his digit.

-Sorry, Ratchet, I just had something else on my mind.

-You should be focused on where you are right now. Although I guess it's about Optimus right?

You were surprised to see that the doc bot had guessed it. Seeing your expression, he laughed at you a little.

-It's obvious, everyone at the base is aware of you… The truth is, we haven't seen Optimus happy with someone in millennia.

You sighed as I grabbed the tools and went to work on one of Ironhide's weapons.

-I don't understand his behavior lately… He's been acting so strange, I'm worried.

Ratchet cleared his throat as he became serious while forcing you to look at him with his digits on your chin - This business you should stay out of, y/n. He'll get over it, just try not to be alone with him.

You didn't understand why Ratchet gave you that advice you tried, he looked at you again - Believe me y/n, it's best to keep your distance from Optimus for now.

There was something you didn't understand about what was going on, you asked the rest of the Autobots about it, almost everyone gave you fuzzy answers about what was happening to the autobot leader, until you got to Ironhide who gave you another warning that left you even more surprised.

-Squishy, there are some things you shouldn't meddle with no matter how curious you are. Although if you solve your doubts I wish you luck so you can get out of it - said Ironhide

You were thoughtful about everything you had heard from the autobots, you missed Optimus since the last few months you had felt an attachment to the autobot leader that went beyond friendship with him. You admitted that you had fallen in love with that big guy with blue optics, his kindness, his authority and obviously his height and figure.

Although you were still curious about what was going on, you decided to follow the advice of the autobots not to be alone with the autobot leader for the time being. You were succeeding but every time you entered a room his gaze followed you everywhere. You literally felt like cat and mouse, there would come a time when cat would end up getting what he wanted even though you didn't know what.

Until one day when you were almost ready to leave because you had overstayed your welcome at the base, you heard a noise in the hangars.

Lennox and the military team explained to you that the farthest hangars of the base were for storage or special equipment for both autobots and humans. Something in your instincts told you that you should not go there but you decided to go out of curiosity, you opened the big door carefully, that place was dark so you stepped carefully not to touch anything dangerous.

Your nerves were on edge and the adrenaline was the only thing that kept you moving, you were getting closer to the source of the noise, at the same time you were seeing that there was smoke around, making this put you more alert than before, it was clear that you were not alone in this place.

You came to see a dim light at the back of the warehouse, it was difficult to pass with so many boxes around but you passed as you could. Finally you arrived carefully at the origin where you were surprised to see who was there.

It was Optimus, with his exhaust pipes producing smoke while on a large part of his body there was a pink liquid around his body.

You were about to approach to see if he was okay but you stopped when you heard him…

He was moaning?

He was at the same time rubbing what seemed to be his spike, while there was even more transfluid.

You remembered certain lessons that gave you some embarrassment from Ratchet. You were trying to remember but seeing the leader like that made you tingle. You shook your head it was clear you were not supposed to be here. You were going to tread carefully until you heard him moaning your name….

You tried to leave carefully until you bumped into one of the crates making a lot of noise.

-Who's there?" growled the autobot leader.

You tried to hide quickly only to feel a servo around your body. You closed your eyes, you were trembling at the sight.

-Look at me...

You opened your eyes to see how it was caressing you with its digits. - How long have you been here? - asked the autobot leader.

That tone made you shiver, it didn't seem like Optimus was the one he was talking to.

- I haven't seen anything, I'll leave without bothering...

-No... I've been avoiding this situation for the past few weeks, feeling jealous of the rest that came close to you and what hurts me the most is that you started avoiding me. My y/n... This time, you are going to stay by my side.

You didn't understand what was happening, until two of his fingers were touching your thighs making you shudder.

- You know how much I wanted you, your kindness and curiosity. Your smile, your beauty... and your figure. Oh Primus, my spike was begging to enter your body. To make you mine... I know you want it too

You moaned again, as you felt the pressure on your thighs... you were starting to feel hot I knew you should stop but at the same time you wanted to know where I wanted to go.

His optics were watching you seeing a smile on your face.

-Well I see that you agree....

Then you felt his glossa lick your neck and then kiss you while continuing the pressure on your thighs. Right now you were reacting to several streams of pleasure that you never thought was possible.

His digits removed your pants while he kept kissing you and you felt his glossa tasting your taste.

You moaned as you felt a digit around your entrance.

-I'm just preparing your body for the best part... let yourself go, my little one," he whispered in your ear as you felt his digit touching your insides moving up and down making you moan in different ways for the leader's pleasure while he whispered how much he wanted you, he loved you madly but at the same time he didn't want to scare you away.

You moaned again as you looked up at him.

- Then you too... - you said between moans as he digit around your walls.

-Yes... I love you and I need you...

You climaxed as he pulled out his digit and licked it. He smiled at you as you caught your breath. You thought you were going to rest but you saw he was bringing his spike closer.

-We're not done yet... I want to feel you more... Mine all mine

You were going to protest but you felt his spike enter inside of you and saw a big bulge through your body. He started to move slowly.

-You are so tight

As you gasped as you tried to take it, it overcame the digit. Once he adjusted to your body he began to move faster and faster and you both gasped at the same pace. He was about to climax, you fell in as he could.

-Wait I can't... ah! It's going to be too much.

-Ah! -Easy... i can't out! Ah! Oh Primus! - gasped Optimus as well.

You both climaxed as you felt your body fill with the transfluid.

Your belly completely swollen as he carefully removed his spike while some transfluid fell out.

-That was... Intense - you said while touching your belly - What happened to you?

Optimus kissed your forehead as he placed you close to his chest.

- We have heat cycles something your species would say in heat, I couldn't take it anymore.... I should have done it sooner though, my little one.

You smiled and I snuggled close.

-Then I won't move away next time.

Optimus chuckled and held you close.

You had learned a lesson from the heat cycles, something that was not to be the last time.

#sam writes #optimus prime #transformers #optimus prime x reader #optimus x reader #transformers x reader #robot x human #maccadam #maccadams #valveplug #transformers g/t #g/t #bayverse optimus prime #i wanted show this so long #i finally finished it #optimus #size difference

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emotionallyattachednerd · 8 months

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Rightfully His ❙ TP Optimus Prime x f!human reader ❙ NSFW 18+

Word count: 2500+

Warnings: Smut ( Fingering and spike penatration ) low angst, possessive behaviour, jealous behaviour, size difference and robot x human. NSFW 18+.

Notes: You people are sluts for dom Optimus, and I don't blame any of you. He a snack! Um, so, here you go you filthy animals.🥰

Also to add, Optimus Prime is using mass-displacement, though he's still large, if you get what I mean. I didn't want this to be a repeat from the first one I did so that's why I went with this approach.

A day at the beach sounded perfect. Optimus was kind enough to drive you there himself. You enjoy spending time with him. Though once there he would need to remain in his vehicle mode while you take a dip.

Wearing your favourite bathing suit you take a dive and enjoy yourself, waving at Optimus with a beaming smile which everyone will see as you waving at a truck. Not weird at all.

While you were enjoying yourself a few guys approached you. They introduced themselves as you did too, making small talk. They were nice, and the casual talk turns into flirting, and you can't help but beam in return with a flushed face.

It's not often guys flirt with you so it was kind of nice to have it happen, though you weren't really looking for any kind of relationship at the moment. You already had your eyes on someone but you doubted they felt the same back, so you didn't hold your breath about it.

For now you enjoy the attention from these guys.

Not aware, Optimus watches. Being in his vehicle mode you couldn't tell he was glaring hard at the guys, wanting nothing more than to scoop you up and hide you from their prying eyes.

What bothers him more is that you're enjoying the attention.

It's not until afterwards that you finally leave the beach and jog towards Optimus' truck form. He stares at your breasts under the bikini bouncing with each move and that makes him groan lowly.

"That was just what I needed. Thanks Optimus, it was really nice of you to drive me." You say happily as I put the towel on the leather seat and sat on it so you don't get too wet or sand everywhere.

This was a last night thing so you didn't bring any spare clothes.

"So, you had fun?" Optimus asks through a hint of dullness, which you didn't pick up on right away.

"So much fun!" You continue to beam softly before relaxing against the seat. "So, my place? Wouldn't want you returning to base at a late hour."

"Of course." Optimus can only sigh before leaving the beach with the sunset setting across the long strip of road. The drive is perhaps an hour from your place, so you get comfortable.

Optimus watches you as he drives, stretched out on the seat wearing only your bikini, skin damp as the setting sun glitters across you. He notices your perky nipples through your thin top. He lets out a low groan, forcing himself to rev his engine to try and hide it, which doesn't work as you pick up on this.

"Are you alright?" You question curiously.

"I'm fine." His answer was dull and that's when you start noticing his odd behaviour.

"You don't sound fine." You point out, more curious as you sit up more against the seat. "What's wrong?"

Optimus knew he wasn't able to hide it anymore, not after so long. "Those men from the beach, they seemed very friendly with you."

"Oh those guys? Yeah I guess they were. It's nice to be noticed honestly." You can't help but giggle lightly.

"You liked the attention they gave you." He adds and that's when you furrow your brows. He goes on before you can answer. "You were friendly back, smiling, blushing. Do you often flirt with other men like that?" Now this is weird to you.

"Um...I don't know, I guess? It's not everyday I have guys flirting with me. Why does that bother you?" You can't help but cross your arms.

It was quiet for a moment before he finally answered. "I don't want you flirting with other men, or accepting such behaviour from them towards you." He can't be serious?

You can't help but let out a scoff. "Seriously? Optimus, it's harmless flirting. Besides, why do you care? It's not like we're dating." You answer through an annoyed pout.

It's Optimus. He's the one you've got your eyes on. From the moment you both first met you've been overly fascinated by him, and you're already friendly with him, taking any chance to spend time with the big bot. But you were both completely different and you don't think he felt the same way towards you, so you never advanced to push your friendship any further.

However, now it seems things are getting on thin ice.

"Jesus Christ, you sound so jealous. No, you don't get to be jealous, alright? If I'm going to flirt with guys then I'm going to flirt!" You are honestly annoyed. How dare he!

"No." His simple answer doesn't settle well with you.

"No?"

"No. You won't. That's an order." This is getting out of hand.

"An order? No, you don't get to order me around! We're not dating!" You had to repeat again.

"Are you refusing to follow my order?" You have no idea what's wrong with him, or why he is behaving like this. Surely he doesn't have feelings for you?

"Yes...I'm disobeying your order, Optimus Prime! Fuck you!" You lose your temper as you shout, feeling both angry and emotional.

Suddenly the seat belt tightens around your body and pins you against the leather seat causing the air in your to be pushed out.

"Optimus?" You can't help but whisper his name, staring at the dashboard as if that's where he is staring at you from while he drives.

"I'm taking you back to base." He simply answers, tone casual and dark at once.

Swallowing thickly you try to adjust yourself but he made it hard with just how tight the seat belt was on you and he wasn't going to loosen his hold on you.

"N-no, I said take me home." You remind him but he refuses.

"No. You need to be taught a lesson, and reminded." This get's your heart racing. What is he talking about?

"Lesson? Reminded? Of what?" You can't help but question.

"That you're mine."

His? What the hell is he saying?

You couldn't move and you heart rate wouldn't slow down. Optimus has never spoken to you like this before and that kind of scared you. He is acting possessive, as if you really did belong to him but you didn't. Right?

The rest of the drive was dead quiet. You can't bring yourself to say anything or even struggle, and your heart rate never once slowed down.

Once returning no one else was around you figured this out. Optimus transformed with you still inside him which he's never done before. It makes you yelp in surprise before oyu find yourself in his servo.

He doesn't look down at you as he walks into his quarters and over to his berth where he finally places you. Stepping back he stares, watching you. You are still damp from the beach and in your bikini you can only sit there and stare back, breathing heavily, wondering just what he is thinking.

Finally he moves towards you. He sat on the berth right beside you making your breath hitch, before something happened you didn't think possible. His large frame starts shifting, shrinking himself until he is at her level.

The sudden action leaves you speechless, unable to form words as you stare at him. He still has that firm stare on him and you go to say something but he cuts you off.

"Remember, you're here so I can remind you who you belong to." Your response is to give a nervous nod, but you can't help the thrill that burns through your core.

"Optimus, you sound upset?" You manage to say through a shaky breath. "Have I hurt you?"

"You have." His answer is not what you expect. "For a long time I've admired you, wanted you, but I saw you felt something towards me but I feared I might've been wrong. Seeing you with those humans, that bothered me. I don't want you doing that anymore."

"Anymore? So...what does this mean? What am I to you?"

"You're mine. That's what."

Suddenly he leans closer and you find yourself laying back on the berth where he had laid a blanket for you. He's hovering across your shivering body, his shadow consuming you.

"What are you doing?" You whisper through a heated gasp. Your body was reacting in a whole different way, one that is arousal.

"What I've wanted to do for a long time." Suddenly, he kisses you.

You can only let out a muffled yelp against his lips, which are oddly enough soft and warm. You respond through a low throaty moan, hand sliding up against his cheek plating as you savour his lips. You've imagined this for so long but never thought it would be this beautiful to feel the primes lips against your own.

Optimus responds back through a deep moan himself before gently pushing his glossa inside your mouth making you gasp and return the same with your own tongue. Both your hands were against him, caressing his face and slowly deepening the kiss more.

You love him. That's right. As silly as it might sound, you have been deeply in love with Optimus for a long while. But now, he was your obsession, an addiction you craved. All this time he wanted you and you had no idea. He was good at hiding it. Not anymore.

His servos move across your body, dancing over your quivering skin before feeling his digits tug at your bikini bottoms, the lace flying loose as he tosses them aside. Next is your top and that is gone pretty quickly with some help from you.

Bare naked, you wrap your arms around his neck and move your thighs up over his hips, grinding yourself against his plating which causes him to moan back in approval.

You need him, you want him, you ache for him.

"Optimus..." His name whispers from your lips as his mouth moves to your neck where he gently nips against your tender skin. "Feels so good."

"I only want you to feel good, and to know only I can ever do this to you." He says softly before moving his servo down to your core where he rubs his digit between your folds before gently pushing one inside your depths.

The sudden feel of his thick digit makes your back arch and he doesn't stop there, pushing further and curling into your clenching walls.

You respond perfectly, hips arching up and grabbing hold onto his shoulder pads, moaning loudly without any care who might hear you, and it didn't seem to bother Optimus either.

"I want everyone to know you belong to me, y/n." He says once again, as if you had forgotten. His digit pumps into you before he adds a second, stretching you so nicely. "I want you to be mine. Do you want me to be yours?"

"Yes!" You answer with glee and without doubt. "You, I want you!"

Optimus smiles hearing this. "Good."

He removes his digits from you and you grab hold of his servo, bringing it back up and sucking at his moist digits, letting out a low moan as you taste yourself.

Optimus lets out a low growl of approval as his vents kick in, metal heating up as his throbbing cable presses against his panel, demanding to be released.

You feel him rutting gently against your bare core, moaning loudly as your swollen clit grind against his plating. You needed him inside you, now!

"Optimus," you whisper his name into his audio before finishing, "Fuck me."

Any self control was gone.

You hear the sound of metal shifting, Optimus as well, before suddenly feeling the warm tarped tip of his cable pressing against your core and moving within, not holding back as he fills you completely, flushing his hips against you firmly.

The sudden fullness feeling his throbbing spike invade you is an experience you only ever imagined, and it's nothing compared to the real thing. He fills you so much, to the point you hiss through a moan and move your hand to your belly where you feel the tightness, only to gasp when you feel a bulge caused by Optimus.

"So full..." You moan out. "Feels good."

"Y/n." Optimus whispers your name as his optics flash through the arousal he was feeling building through him.

"Please move, I need to feel you fuck me, please." You plead while you caress his face under your hands, biting your lips as you clench around his more get him going.

Optimus does as you want, or what he wants, whichever it is. He rolls his hips back before driving forward again, pushing more deep beautiful moans from your plump lips.

His pace doesn't flatter as you wrap you legs tightly around his rocking hips, tugging him against you more as you hands grip into whatever armour plating you can get your hands on.

You feel every ridge of his throbbing spike brush along your inner walls, the tip pressing up against your belly, bobbing with each thrust Optimus gives you.

All you can do is pant and hold on, embracing your desires and what you've dreamed of now finally coming true. If only you knew he could change his size, perhaps you might've said something sooner about your strong feelings towards him and avoided the fight you two had.

It doesn't matter. The past is the past, and this is now, moving forward.

Optimus lets out long groans as he fills you over again before adjusting himself a little, and gaining a better angle before his movements become more firm and short.

The sound of his soft metal slapping against your damp skin filling both your ears and his audios added to the growing pleasure between you both.

One servo grips into your hip as he sets a more firmer pace, grunting out as you clench more around him, making it very difficult for him to hold himself from finishing so soon.

But you want it, to feel his fluids fill you deeply right now. You'll have other opportunities to explore and experience another time. This won't be the only time that you know.

"Please, Optimus, I want you to fill me so badly! Don't hold back, please. Just let me feel it all, please! I'm yours! Only yours!" You can't help but chant over again through your arousal as you feel yourself already nearing your orgasim.

Through your chanting Optimus lifts your hips up and ruts against your core, speed strong as his vents kick in and throat moans grow more furiously.

You let out a half broken sobbed cry of bliss as you suddenly feel your orgasim crush through you, and Optimus at the same time let out a strong burst of energy as he fills you deeply with his fluids, belly full of his spike and the warm liquid he spills within.

Holding on you relish every second, body shaking through the after shocks of your orgasim before eventually he slowly pulls out from you, feeling so empty now as some of his fluids follow behind.

In your orgasim daze you didn't realise that Optimus had turned back to his normal size self and held you close in his warm servo.

As you lay in his servo you curl your body around his digit before he brings you closer to his face where he gives you a soft nuzzle making you smile and hum in return.

Even after being in control and possessive over you, he also has some loving aftercare for you in store. He cares about you deeply, you know this, and you care about him.

"You'll always be mine. Understood?" Optimus says tenderly and you can only nod softly, having no complaints about that.

"Always. Does this mean we're dating?"

"How about I take you on a date?" The offer makes your belly fill with warmth.

"I would love that."

"Then we're dating." He confirms proudly.

You are rightfully his.