Notes:

Ola, so.. I need to update the tags because this is aimed really on Megs and my OC. Don't worry, optimus will be back really soon. But as it stands now the relationship will be OP/OC/MEG in a delicious cyberhuman sandwich. I hope to finish this fic before I get back to work, next week I am also off so it shouldn't be a problem. This chapter though, the smut turns a bit dark but most of it exists in megatrons head. Please let me know what you think!

Chapter 7: (Un) Pleasant Surprise

Megatron awoke the next morning rather sluggishly. His systems slowly booted up and opened his optics. That had been the best recharge he had in vorns, his whole system felt renewed, perhaps his systems had finally done an emergency shut down. Hmm no that wasn't it, then what caused this -anomaly-. Hearing a small noise near his chest, he realized that there was something there. Gazing down at his claws, still intertwined with each other, he slowly pulled them apart revealing the little femme there. By the looks of it she was still in recharge, spread out over his chest plates right on the location of his spark.

Her clothing had moved up during her sleep revealing a bit of skin of a flat creamy looking tummy. Suddenly Megatron felt his spark constrict and his intake starting to salivate. He felt the undeniable urge to move his glossa over the patch of skin slowly to taste her, to savor the taste of her little human form and make her squirm in pleasure calling out his designation. His cooling system clicked on and he ignored a message in his HUD requesting to open his interface panel. His half hard spike was pressing insistently against his cod piece making it hard for him to keep it closed and the blasted thing was pressurizing more and more.

This femme must be what humans called a witch or enchantress, this was the only explanation. There was 0 percent possibility that he, the grand slagmaker was attracted to a mere human. Blech what nonsense!

While Megatron was going through an existential crisis, Mika was waking up as the lack of heat the warlords claws had provided had disappeared and the clicking of whatever that was going off like a deranged clock was annoying her.

Stretching herself fully Mika wasn't aware that she bared even more skin making the situation Megatron was currently in slightly harder.

Megatron's intake went completely dry as the femme stretched, pressing her chest up and wrapping her hands in her hair ruffling it slightly. "aah.. love a good stretch! That was the best sleep I had in a long while!" came the enthusiastic chirp. The femme opened her eyes and gazed right at him, that moment the need to taste her, claim her came back and hit him like one of primes knees to the gut.

Releasing a low growl he clicked something in his own language, Mika didn't understand but she could tell he was annoyed at something. Before she knew it the mech had grabbed her gently and pushed her to his face. Releasing a small yelp, she figured this was it, this was the moment where she would be nice snack for the behemoth. But right when she was about to protest the large mech pressed his face closer to her body and inhaled deeply. She gazed at his red eyes, they were strangely expressive and a very dark red. Noting that depending on his mood his eye color changed. It was always red, but it varied a lot.

When he was relaxed the color dimmed slightly and was more light red, but the more annoyed he got the redder his eyes became. She was too absorbed with her analysis of the giant's eyes to see it coming.

Megatron closed his optics as he inhaled, that scent, it was driving him crazy. He wanted, no he NEEDED a taste. But she was nothing but a filthy insect, how can you debase yourself to this level.. No! she was more then that, something was off, he now was beginning to understand why the holy prime had trouble containing himself around her. Hmmm very interesting indeed- he thought while opening his optics once more. "What have you done to me femme" he growled and before she could respond he moved a digit from his free arm up towards her legs, up between her legs and right to her center.

Mika was now very aware what was going on and went week in her knees with the thought. I'm such a slut, first I'm preying on the leader of the autobots, frotting against the fridge and now I'm about to get frisky with the enemy, wait, he was the enemy right? Mika didn't know anymore for sure, she hadn't heard anything from Optimus in the meanwhile and besides, despite the bastard's good intentions, he did take off. "Oh gods" she groaned and spread her legs wider for the other.

The wave of her arousal kicked his cooling fans in overdrive, she wanted this? So the little human wanted a taste from both fraction leaders did she…well he could certainly provide, but not right now, not like this.

He vented deeply and pulled back gently settling her down on the ground. "You need to return to your cell, I will hail Barricade." He growled his tone receptive for discussion.

Mika blinked and flushed partially in anger and in shame. Stupid stupid, stupid she thought not wanting to meet his eyes. She just gave the warlord a brief nod and stood still legs shaking. "you hailed me sire?" came the sly voice from the cruiser. "Yes Barricade, take the woman back to her cell, tonight she may use the wash racks, assuming you finalized the changes I requested" he spoke the tone laced with threats.

"Yes my liege of course" he spoke and gave a deep bow before collecting Mika. Megatron could feel the waves of confusion and curiosity coming of from his scout, but the scout was intelligent and knew better then to question his motives.

Later that evening Mika was pulled out of her musing, she didn't understand, what did she do wrong? She thought she saw that he wanted her, and then they stopped. Gritting her teeth, she quickly got annoyed, what was it with men human or not, they were all jerks! If that big clunk of metal will give her the cold shoulder, then so could she!

Barricade opened the cell door "human, it is time for a wash, you reek" the scout smirked trying to goat the quiet femme. Mika ignored his insult and just got up stomping towards the direction that the scout pointed towards. Shaking his helm he just made a whistling noise "Femme's " he muttered and followed the woman.

Mika stood underneath the shower releasing a moan of pleasure because of the hot water pelting down her back. She had no idea how they managed it but Barricade had created quite a large bathroom with a huge showerhead. Everything was built slightly too large for an average human, but she could manage. It wasn't anything fancy, just the basics but oh so good.

Closing her eyes she released another sigh and allowed her hand to slide from her neck down to her breast massaging the breast and caressing the now hardening nipple pinching it lightly. If Megatron wouldn't please her then she would do it herself, after all this was the first piece of privacy she had since she was brought here and although she was fairly certain the space was being monitored, it would have to do. Her hand was sliding down over her toned stomach traveling to her burning core, her head moved back to release a small moan when she suddenly felt herself trapped, her front pressed against the cold wall with a very hard and warm mass behind her. She felt hot puffs of air hit her ear and heard a deep growl that could only belong to one person, or mech in this case. Megatron.

"a..ah cold!" she whined but soon her body acclimated to the sensation and her mind focused on how it was possible that Megatron was in her almost human sized bathroom. "You play with fire and now you will burn but trust me when I say little human, you will relish every second of it." came the harsh snarl from behind her.

Mika felt every plate push into her and her thought about him also turning human like Optimus vanished like snow in the sun, he was definitely metal.. but how? She tried turning her head to look over her shoulder but could only see his shoulder as he towered above her, frame pressed tightly against her back. "What… I was just taking a shower you brute..ahnn!" Mika protested, her words dying into a moan as Megatron moved his arm around her to pull her even closer. His other arm was placed next to her head on the wall. Looking up at it she noticed that his claws were now finger like appendages. Thick but blunt.

"I could smell your arousal in my room, you challenge me, dare me to come to you" he growled and lowered his intake to her neck sucking on the muscle and gently nipping it but hard enough to make her winch. It seemed he had done more then just getting rid of his ridiculously sharp claws.

"I..nngh.. was having some ME time, you know, in private? I wasn't challenging you I -ah!- swear!" she protested and wiggled in his grip only enticing the warlord more. He rolled his hips against her pressing his still covered spike against her firm backside. His HUD was overflowing with warnings and messages to open and release, but he overruled them, for now.

"Do you wish me to desist?" he asked simply and halted his movements. Megatron was many things, but never a rapist.

"No!" came the quick and clearly impulsive response from Mika making the warlord release a chuckle. "I mean, no you don't need to stop, I was just surprised, please don't stop" she whispered a little breathlessly. It was a good thing that he was holding her around her waist or else she would have been sure that her knees would have buckled already. "How, how are you doing this?" she asked and groaned closing her eyes, leaning her head against the wall as he began to slowly grind against her once more.

"Irrelevant for now, turn around and face me" came the order. Mika was released and turned, almost immediately Megatron picked her up and wrapped her legs around his waist, as far as she could wrap them around the still huge mech. Mika finally got a good look at him. He looked more or less the same as in his normal form, but a lot smaller but still very intimidating and slightly friendlier because of his blunter teeth and fingers. But his eyes were still blood red and burning with the power of a volcano.

"Now, with your permission, I will proceed in -fucking your brains out- as humans like to phrase it" he grunted hoping he got the sentence right. With a click and a hiss his codpiece retracted and his spike instantly pressurized. The large silver black appendage already dripping in transfluid, twitching ever so slightly in anticipation against his stomach.

Mika blinked slowly, was he really asking for permission? What a gentleman. "eh.. yeah sure please do" she said a bit awkwardly. The feeling didn't last as he aligned himself and with with one large thrust entered the femme in front of him. His spike only half way in but he offered the woman no reprieve. With every trust he entered her deeper, relishing the whines and moans. The look of pure bliss on her face, her scent.

Hissing at the exquisite sensation on his spike as her tight sleeve hugged every part of him he wondered if she could take it all. Of course, he could adjust his spike as he pleased but this was in scale, he was a large mech after all. "hnn, I'm going to frag you so hard you will taste me femme, do you want that? Do you want my full spike?" he asked while not letting up on the strength of the thrusts and the speed.

"god yes!" Mika almost screamed. Megatron smirked slightly, if she was screaming now, she wouldn't have a voice left after he was done with her. He wondered how far he could push her, what she desired, truly desired. It was time to test some limits.

"I need you to -hnn- speak up when you feel I go to far" he warned her and felt Mikas core clench in anticipation. That cunt of her was ready for anything he had to offer, so he felt.

"Ok, I promise!" the femme managed to squeak in between thrusts. Megatron narrowed his optics into slits and a devious smirk graced his handsome faceplates. "I am not promising I will stop, you are after all, just a little human. A little filthy human hmm, fraternizing with my -brother- first and now me, I bet you wish it was both of us right now, filling your little human cunt with our spikes hm?" he growled.

Mikas eyes widened and her cheeks turned red. She shouldn't be accepting him talking to her like that, but it was so hot, and he was right. She did wish optimus was there fucking her as well.

Megatron changed his pace to a more leisure speed knowing he wouldn't last long if he didn't. "I suspect if I trust myself into you all the way, you will have some internal damage. I can almost feel your reproductive organ as we speak.. hmm how would it feel I wonder to tear trough it, to spill my seed into you and feel it flow trough your entire system. I don't know how the human body responds to cybertronian trans fluid, perhaps it will burn you inside out, make you..hnnh.. melt around my spike"

He could smell a hint of fear during the talk but it soon turned to pure unadulterated arousal. So the femme had a dirtier mind then he anticipated. Perhaps she knew he was bluffing.

"Perhaps not, it wouldn't do to melt such a pretty face" he hissed punctuating the last two words with two harsh and deeper thrust. Mika winched in pleasurable pain but didn't shy away from him, she even pushed closer. "All talk. No bite" came the panting reply from the tiny femme.

"oh really now" Megatron rumbled stopping his movements all together. Mika blinked and looked up at the mech with a tiny smirk "yeah really" she challenged him her eyes shining with desire and mirth.

"Perhaps I will do it slow then, slowly extend my spike into you while I fuck you.. shall I give you a countdown to it would breach the part of no return..the point hook can no longer repair you? Its an easy game really.. I count down-hn..-" he ended the sentence with a groan as the wretched femme tightened her muscles around him. "And I extend my spike slowly while doing so, and then you show me how tough you really are little insect.. "he grunted. He could feel his spike quiver in anticipation already, his sadistic coding slowly creeping in.

"Gods…" mika muttered and was happy they were in a shower, she must be positively dripping right now. how was she getting off on this. "10….9…8" he started the countdown and Mika felt his spike actually getting longer and thicker slowly. It was a very subtle change, but a change nonetheless. The bastard was really doing it!. "7…6.. ah primus I can almost feel you tearing, if I had known tearing a human apart was so pleasurable this way, I would have done so before" 5….4… remember.. 0 is the point of no return ah.. so fragging tight" he groaned in delight.

Mika felt like she would pop, god it was so tight, and it hurt so deliciously. She wanted to say stop but for some reason her body didn't cooperate, she felt so good, the pain felt so good.

"3…2…." The warlord glanced down and nearly overloaded on the spot. Mika had thrown her head back and was blinded by pleasure, her whole body was tout and he could see his spike budging through her abdomen, the skin bulging around it. Bringing a servo to the bulge he stroked himself through the skin and grunted a bit. She was surprisingly flexible for a human but no matter.

He indulged himself in the fantasy of counting down to 0, his spike growing at the same pace but slowly ripping through her uterus, making Mika scream in pain and pleasure, then moving up even more. He could feel her juices flowing over his spike mixed with her blood. She was howling now, begging for him to stop but it was already to late. "To late little one" he would say and mercilessly he would pull her closer, thrusting full power now, his spike bottoming out fully, shattering bone and going deeper and deeper his spike tearing through everything...oh pits! Grasping her by the neck he slowly clenched his servo, not wanting to snap her neck and pre-maturely end the mating.. no, he wanted to enjoy this exquisite moment for as long as he could. This was a onetime deal after al he thought maliciously. The pleasure was so overwhelming that he had trouble maintaining his fantasy.

The clenching of the femmes core suddenly brought him back to reality and he felt her climax with a loud shout. That was his undoing, the fantasy combined with her actual pleasure hurled him into an overload. His optics flashing brilliant white as he gave one firm thrust and overloaded, the transfluid shooting up deep inside the lithe femme.

Soon the shower was quiet except for their panting and Megatrons cooling systems. Soft clicks were heard as the warlord tried to recover from one of the best overloads he had ever experienced. Mika was trembling with exertion and when Megatron pulled out of her she winced. After a few clicks the warlord glanced down "are you..fully functional?" he asked his vocals uncharacteristically soft. Mika chuckled and nodded" yeah.. that was amazing though, I don't think I ever experienced sex like that.. but then you aren't human so there's that, I'm going to be very sore though but it was worth it" She trailed off.

"How was this possible anyway?" she asked before yawning. God she was exhausted. Megatrons plating seemed to fluff with pride. "Humans can not compare to cybertronians" he said arrogantly but when Mika gave the other a glare he cocked his helm a bit "to most humans" he amended. "namely one human" he added in afterthought. "And to your question, this is a holoform.. only then representing my original form whereas most cybertronians here on earth opt for a human version, and though that is a possibility, I prefer this one even though for such activities as this. I can make the holoform as dense as I wish" he explained before Mika could fire a new barrage of questions.

"Why me" she asked suddenly. First Optimus prime, now Megatron, was she some sort of cybertronian magnet? Hmm barricade had not shown interest so that idea went out of the window. Megatron didn't reply to her request he just gently released her from his grip but not before trailing a digit over her breast, down her stomach and right to her extremely sensitive center. Gently but surely, he swiped a digit trough her dripping folds and brought it to his intake licking it sensually before growling displeased "hmm I need to configure my holoform to allow taste" he purred and set his burning optics on the femme. "finish up, Barricade will bring you back to me". Smirking he suddenly flickered out of existence leaving Mika alone once more.

After a few minutes of thorough rinsing, she toweled off and got dressed before stepping out of the shower nearly bumping into Barricade's pede. He was quiet but had the biggest smirk on his faceplates making Mika flush bright red. Opening her mouth for a second, she just closed it again and shook her head deciding silence is het best course of action. The mech gently picked her up and trotted to the command center where his lord would be sitting. Entering he froze suddenly as on the big screen was the face of none other than Optimus Prime himself and no longer human.