Warning: Smut ahead!

(OC POV)

Before I could ask why he was still here he surged forward with a speed born from a millennia of battles, his large hand tangling in my silky smooth red hair before he yanked my face to his with a gentle push. His lips met mine and a spark immediately lit up in the bottom of my stomach and traveled up my spine, my eyes closing as I set my hands on his hips to keep him close to me as I tilted my head to kiss him deeper. A strong arm wrapped around my waist and picked me up higher as my legs automatically wrapped around his waist, his body spinning until my back met a wall and he pushed his hips into mine as he held me in place expertly. My mouth opened in a slight gasp when his tongue swiped along my bottom lip to ask for entrance, the hand in my hair tilting my head more as his tongue pushed into my mouth and tangled with my own. His chest rumbled in a growl when my nails raked down his chest in response to his deep kisses, my hips thrusting forward to push against his own when my body became desperate for some friction. I pulled his bottom lip into my mouth and bit down on it gently as my nails crawled up his stomach, lifting his tight black shirt up along the way as his cut muscles rippled in response to my hot touches. The Prime pulled away from my mouth before trailing kisses across my jaw and down to my neck slowly, another gasp leaving me when he bit down on my neck with obvious experience while he rolled his hips.

"Yes..." I hissed out when pleasure pooled in the bottom of my stomach and my womanhood started throbbing, a sharp inhale sounding as the mighty leader most likely inhaled my arousal before a growl shook his chest.

"Femme, you have no idea what you are doing to me." he growled out as his deep baritone became husky with pleasure before he focused on my neck again, my back arching as my legs brought his groin impossibly closer to my own as he rolled his hips into my own.

"I have a pretty good idea Prime." I whispered breathlessly as his expert mouth moved down to the swell of my breasts that weren't hidden, his tongue dipping into the valley between my breasts as one of his hands lowered to squeeze my ass. His only response was a deep groan as he set his nose on my skin and took in a deep breath of my scent, his hips rocking into mine as if instinctually responding to smell of my arousal and my flowery skin. Both of his hands settled onto my asscheeks before suddenly lifting me higher until my chest was in his face, his erection grinding into my ass as his face nuzzled my breasts from behind my clothes impatiently.

"You are wearing too much...clothing." the slight pause was immediately forgotten when his shirt disappeared into a shower of sparks suddenly, the expanse of tan muscled skin catching my attention easily as my nails dragged themselves up his stomach.

"You better take care of that then, big boy." I murmured before leaning forward and capturing his lips with mine again with a groan at his male taste, my nails digging into his delicious biceps that were flexing with the effort of holding me up against the wall. Dragging my lips along his jaw I moved them to his neck alike to the way he did the same to me, my teeth latching onto his pulse point much harder than he did to me and causing him to growl loudly. The Autobot's leader grabbed my tight shirt in his strong hands and ripped it off my person completely, a gasp leaving me in surprise only to be replaced with a groan when he bent forward to lick the uncovered skin. A pleased rumble left his chest before he reached behind me and delicately unhooked my bra slowly, allowing me to pull it off and drop it to the floor before his lips latched on my left nipple and suckled on it. My back arched as a white-hot streak of pleasure shot up my spine and left me shaking in his grasp, his free hand taking my right nipple and tweaking it while he bit down on the one that was in his mouth.

"Optimus..." I stuttered out as his hips started grinding into my own as his chest started heaving with excitement as well, his shaky breath washing over my sensitive nipple as he switched to the opposite one and suckled softly. The hand on my chest moved down over my curves before resting right above wear my jeans started, my hips unconsciously moving forward until his erection was nestled perfectly against my warm womanhood.

"Aileen..." he growled out as he grinded his hard shaft against my warm mound as he lapped at my nipples slowly, shaky gasps leaving me before I grabbed his hair and pulled his head back while kissing him roughly. His strong hand moved towards the apex of my thighs before dipping lower and stroking my warmth, my hips jerking forward at the touch as I threw my head back and revealed my neck much to his pleasure. Warm lips latched onto my neck again while experienced fingers rubbed my jewel from behind my jeans, incoherent words of pleasure leaving me as I rolled my hips in time with the way his fingers were moving. My own fingers were making short work of his jeans before reaching in and grabbing his hardened shaft, a sharp exhale leaving the leader as I stroked the precum from the head down to the base in a languid stroke. A moment later the Prime froze and I cursed inwardly because I knew we were just interrupted via com-link, Optimus pulling away from my skin and dropping me to my feet gently as his gaze caught mine regretfully.

"I...I must go." the deep baritone rumbled out though I still detected the huskiness that came with pleasure in its depths, his eyes the darkest blue I have ever seen them as they traveled my body one last time in appreciation.

"Duty calls." I said with a shrug as I bent over and grabbed my bra to put it back on and save some of my dignity, flipping my hair over my shoulder as I straightened back up before feeling hands resting on my hips.

"I apologize." I felt him whisper against my ear as his breath moved over my neck causing me to close my eyes immediately, his fingers stroking my hips beneath my jeans while his erection pushed forward against my ass firmly.

"It's fine, go on Prime." I murmured as I tilted my head back against his broad shoulders and bit back a wanton moan at the feel, his soft lips latching onto my neck for a few moments before he pulled away and disappeared in a shower of sparks. All was silent for a few moments before I heard the sound of a transformation sequence outside of my door, his heavy metal footsteps disappearing quite rapidly before they weren't heard at all in the hallway.

"Damnit!" I yelled out in frustration as I kicked the fridge that was next to me and cursing when I hurt myself, grumbling as I limped to the bathroom to start myself a cold shower before heading to bed and getting rest.

(The Next Morning)

I huffed tiredly as I moved through the hallways towards the med-bay to talk to Mikaela about what happened, my mind immediately waking up when I walked through the doors and straight into a doctor sex scene.

"Damn. For an old guy you sure do know how to make a girl scream." I muttered causing Mikaela to yelp and push Ratchet away from her before covering herself frantically, Ratchet cursing in his native language as he turned to glare at me uncaring that he was nude and hard.

"What do you want Aileen?" he said as he crossed his thick arms over his impressive chest and glared at me in deep frustration, my eyes rolling as I became vindictive and decided that if I couldn't have sex than none here could.

"I need to borrow Mikaela. Come on, I need some girl time." I said impatiently as I reached out my hand towards Mikaela immediately and gave her 'the look', the woman understanding and nodding as she wrapped his coat around her and jumped up.

"I'll be right back!" she said before ushering out the door and closing it behind me despite my complaining and whining, her form appearing fully dressed as she pulled me away from the med-bay and a now cranky Autobot medic.

"It's about Optimus." I murmured quietly the moment we were inside her room with the door firmly shut and locked behind us, my fingers running through my hair as I paced to try and work off my newly returned sexual frustration.

"Go on..." she said as she grabbed a soda from under the couch and plopped down onto the dark cushions gracefully, watching me as she cracked it open and held it out to me with an encouraging smile though curious.

"Here's the basic rundown: he came to my room, he offered to help with my sexual tension towards him, I said I was down, we were this close to doing it, and someone had to go and ask for his help! And he left! What the fuck dude! I was so close to getting laid and the object of my dreams just walked out!" I growled out as I downed the soda in between each sentence as I tried to forget how he worked my body, Mikaela gasping as the new information before she jumped up and grabbed my shoulders to stop my pacing.

"Whoa whoa whoa, hold the phone. You almost slept with Optimus Prime?"

"Uh, duh? You're just getting that?"

"The Optimus Prime? The one with the voice that practically is sex?"

"Yes Mickey."

"Tell. Me. Everything!"

A/N: So. Unlike other stories, in this one, Optimus Prime with be a sex god. There's no embarrassing fumbling or awkward silences or questioning. He goes with his instincts and they almost always steer him to the right place. He's not afraid to interface with a femme who wants him as well and he knows how to work her body, no matter what race. Just as he fierce and strong in battle, so he is in the bedroom. But our little female can handle a male as well and she'll teach him a few things that he can't experience with Cybertronians. As always, I hope you enjoyed and please review.