I wake up early in an unfamiliar room, my brain taking a few moments to catch up on last night. Olivia’s still in bed with me, my arms wrapped around the metallic surface of her brain case and the cylinder below that contains the rest of her.

I glance over to the maintenance chair her body was last residing in, and she’s no longer sitting there. Her phone is gone as well, so I don’t really have a way to communicate with her, even though her mind is lying right here next to me.

“That’s odd. I guess we’ll have to look for the rest of you.” I hear some movement and clinking sounds from another room. I gently pick up her core and bring her with me as I head toward the sound.

I find the rest of her in the kitchen, wearing nothing but an apron. With her facing the stove and away from me, I get a glimpse of her strong-looking back, her impossibly small waist, and a hint of her breasts as the outer edges of each one project out from the sides of her slim torso. Also, this morning she has a thin black tail coming from her lower back, idly gliding around, the spade-shaped tip gently swaying as she works.

She turns around, having felt her biological parts being moved and hearing my footsteps approaching. “Good morning! I found enough stuff to make pancakes, so I figured I’d treat you to some early breakfast before work.” She smiles as she flips the flapjacks over, and wiggles her ass at me playfully.

“Thanks, that sounds great! Also, what’s up with the tail? Has that been hiding under your skirt this whole time?”

“I thought I’d get this out of storage for you, what with the whole ‘succubus’ comment. I have a panel in my lower back that I can swap out for some fun accessories, and clients tended to love this one. Great for Halloween parties too, a headband with horns and a pitchfork, and I’m good to go! I’ll pop it off before work though…”

“That’s really cool! So, you can feel this then?” I reach out and touch the end of her tail, which feels smooth and a little squishy, like firm rubber.

Her body twitches slightly, as she lets out a little ‘eep’ sound. “Careful, it’s really sensitive! It feels really good though. Much more of that and I’ll be too busy fucking you to finish cooking your breakfast.”

“Oh really? I’m tempted to just go hungry then.” I run a finger along the edge of her onahole casing, right where the metallic body meets her flesh.

“Lucky for you I’m all done, so let’s eat.” She grabs a plate and skillfully slides four pancakes from the skillet onto it, then walks over to the table. She sets the plate down, pushes the chair back with her foot, and spins back around to face me. “Get your boxers off, bring my pussy over here and take a seat. The chef gets to eat first, and if we’re quick enough your breakfast will still be warm after I’m all filled up.”

I quickly comply. I whip off my boxer shorts and take a seat, still holding onto her onahole core. I slide a thumb along her outer pussy lips as her tail snakes around from behind her. Her succubus tail gently wraps around my already stiff erection, and takes a few light strokes. “Looks like you’re already at attention - good boy. First, let’s get my core back where it belongs. Care to do the honors?”

She spins around and sticks her ass out, as her pelvis unlocks and her already prodigious hips expand slightly to allow her to insert herself back in. I rotate her core to the correct orientation, her already wet pussy facing me as I guide the case into the hole between her legs. With a slight resistance, the first few inches pop into the tunnel that takes up most of her cyborg body’s lower half, and she lets out a tiny moan.

“Of course they had to make this feel good too, the horny bastards… “ She backs herself in the next few inches, then some mechanism in her body grabs hold and pulls her organic core the rest of the way into her. With a click, a full-body shiver and the latching sound of her hips closing back up, she’s back in one piece.

“Now the real fun.” Facing away from me, she unceremoniously grabs hold of my dick and guides it into her dripping slit. The first few inches are a familiar feeling from our earlier encounters, and she takes a few shallow strokes to get started.

“You feel so fucking good Olivia, how about you bend over this table and let me pound the hell out of you.”

“I like your spirit! Yes sir, do your worst.” She slides the pancakes out of the way and stands back up, bends at the hips, and unties the knot holding the apron on. Now fully freed, her giant tits spill out onto the table as she lays out on her stomach for me to take her.

I grab onto her hips and slam myself all the way in, Olivia gasping in pleasure as I hilt myself fully in one stroke. “Fuck, you’re huge! Keep pounding me, my body can take it!”

I fully comply with her request, driven into a frenzy by the combination of the pills she’s been giving me, her enthusiasm, and her insane body. As I slam forward I feel the head of my cock brushing against the ring of her cervix deep inside her, and any concerns I have about hurting her are quickly gone as she moans every time I bump into it.

Between bouts of her moaning and gasping, she manages to ask a question. “Want to try something different? You’re plenty big, fuck! Almost too big! I’ll let you in on a little.. nnngh! secret. That’s not my cervix you’re hitting. Check this out.” On the next thrust, as I pull out, the ring near the end of her vagina seems to relax open. As I take the next stroke, the head of my cock and the first inch or so of shaft slip into a new part of her, even warmer, wetter, and softer.

“I’m more of a succubus than you might think, and you’re inside my ‘mouth’ now. Fuck that feels so goddamn good!” Her “lips” close around my cock head as I pull out slightly, and she winks at me as her internal mouth draws a huge amount of suction on my most sensitive part.

Her tail floats right in front of my face, and I grab it and stick the flared tip in my mouth, biting on it as I slam myself forward again, spearing my way even farther into an impossible place for anyone other than a heavily modified cyber-succubus. Her entire body shudders and she lets out a sound halfway between a shriek and a moan as I blast my chemically-enhanced load directly into her cum-receptacle. I continue pumping, as a few drops overflow from her and drip onto the floor.

We stay like that for a few more seconds, as her internal parts gently gnaw and suck on my tip, eating up the last few drops. Eventually I soften a little and pull myself out, as she lies on the table and gasps one more time as I exit. I slide my chair over, take a seat, and dig into the first bite of flapjack as she slowly comes back to reality.

“So Olivia, good breakfast?”

“So unbelievably good. Do you like the pancakes?”

“Very much so, and they’re still warm!”

“That was one hell of a ride Mr. Allen. My compliments to the chef - I’m totally stuffed.”

“I hope you have a healthy appetite today, I’ll have another meal waiting for delivery by lunch. Those pills are really working for me now; much more and I might have to take up Christie on her offer. I probably could keep her under my desk and fuck her whenever you’re too busy, and I’m ready to go.”

“Ooh, kinky. Maybe you could keep the both of us under your desk - I can be about a hundred feet away before my body is out of range, and I always like a good surprise. I bet you’d like to see me try to keep my composure in a meeting, while you're secretly blasting me full of cum in your office.”

“I hadn’t thought of that possibility, but now that’s on the top of my list.”

“Keep up your good behavior and your ample supply and we’ll see. For now we need to get ready for work, the clock is ticking. I put your shirt through a quick wash, so you won’t smell like a bar today. If we’re going to continue our secret late night escapades, make sure to bring a change of clothes to work. My shower is connected to the bedroom, if you want to get cleaned up.”

I do so, getting ready at a fast pace to get out of her way. While I’m in the shower, she pops in and detaches herself, giving her organic parts a quick wash in the sink. Apparently cyborgs don’t get as dirty as us fleshy folks, so she’s ready to go in no time.

When I hop out of the shower, she’s got her panties and hosiery on and is adjusting her bra. She wasn’t lying about her clothing being custom made and pricey - her bra seems like something an aerospace company would design to hold against massive amounts of stress.

She slips on a black pencil skirt, its curves perfectly matching the inhuman ratio from her thick thighs to her wide hips to her wasp waist - another custom piece.

She tosses on a white blouse, the fabric tenting out from her unbelievable projection in front. She hauls it back in with a thin belt, curving the fabric back under her chest down to her minuscule waist and completing the look. She doesn’t bother with makeup, her artificial face’s features are already built to not need any touch-ups, and she can switch up her look the next time her body is in for maintenance. Her hair is similar, short enough to not need much care and permanently styled to fall back into place with a little tousling.

“You really should be getting dressed instead of staring, Alan. I appreciate the attention though.”

“Oh, sorry.” I throw my stuff on even faster, and we’re ready to go shortly after. We stagger our exits to not arrive at the same time, with me arriving a few minutes before her. I have just enough time to get back into the “harried office underling” role, walking over to our adjacent offices after grabbing our mail and her pressed suit jacket, fresh from the cleaners.

I make it almost the whole way back before being stopped by my coworker from finance, Lisa, who I suspect has had a crush on me for a very long time. She steps out from her nearby office, waving at me as she leans against the cube wall. “Long night, Alan?”

“Uhh, why do you say that?”

She takes a step closer, and I think I catch her taking a quick glance at the now slightly larger and perpetually-slightly-engorged dick, which I still haven’t quite figured out how to hide completely in my dress pants. She lowers her voice to not be overheard. “You’re wearing the same clothes as yesterday. Shirt, socks and all, and I don’t believe you have a whole closet of identical outfits. Burning the midnight oil here? You smell like ladies shampoo so I doubt that. Hopefully it’s not Samantha, she’s a hot mess. Emphasis on mess.”

“Um, thanks for the heads up, but I’d definitely not go out with Samantha. Yikes.”

“Well, it’s probably not work appropriate for me to pry, but just be careful around here - these ladies are sharks, and with your new boss here there’s blood in the water. You’d be surprised how many of them are talking about getting some work done to try to compete with her. She’s got to be like at least 25% plastic.”

“It’s probably more like 85%… She’s basically a full conversion cyborg.”

“Oh, wow! I was wondering how she was built so crazy, turns out ‘built’ was an accurate statement. Never mind then, I doubt the ladies will see a synth as much of a threat around here.”

I think to myself “If only she knew…”

“Anyway, if you want to grab a drink after work and hear all the gossip from the ladies, just hit me up.”

I see Olivia walk through the door, moving at her usual fast pace. I’m suddenly very grateful for the “iron lady” act. “Thanks so much for the offer, I’ll let you know but I gotta go! Ms. Richardson never waits!” I take off at a run, papers and jacket in hand.

I meet up with her as we walk back to our area, and Lisa has wisely gone somewhere else. I open up her inter-office mail as we walk. “Looks like some junk mail, along with a paper invoice from a moving company for your relocation. I’ll expense that for you. Also, your navy sport coat is back from the tailor.”

“Good, you can hang it in my office closet, and I’ll recycle that junk mail.” We make it to her office, she whips the door open, and I follow her inside. She locks the door, and when she turns around her attitude has completely flipped. She smiles at me, and saunters over to her desk. “Looks like someone has a thing for you…” she flops into her chair and turns it to face me.

“Well yeah, I did just fuck you like 45 minutes ago.”

“Ha! I meant that little lady from finance you just ran to get away from. Even from all the way across the office I could see she was staring at your package. If you wanted to let her unwrap it I wouldn’t mind all that much, you’ve got enough for the whole group to share.”

“I’m more of the monogamous type myself, and I’d prefer to not add even more office drama via dick sharing. She called the ladies out there sharks, and she’s right. They’d tear into me, and probably mess up our whole arrangement in the process.”

“Awesome. I like your style Allen. You just stick with me and we’ll go places!”

“Speaking of going places, you have that board meeting today. Do you need anything else from me for that?”

“I don’t think so, you set me up pretty well with that data yesterday. I need to make a few calls before that, apartment stuff, so I’ll be heading over there after. I’ll let you know how it goes when I get back.”

Taking that as my cue to leave, I head out. “Sounds good, let me know if you need anything, I’ll be working on getting data together for the next round of meetings.”

I found the corner to my office, and officially start my day, getting emails and any scheduling out of the way first. After about an hour, I hear a knock on my door. Olivia steps in, holding her laptop in hand and looking a little nervous.

“Ok, I think I’m as ready as I’ll ever be for this executive meeting. Thanks for the help getting this set up, I really appreciate it. Stand up for a second.”

I comply, and she takes a step closer to me, planting a kiss on my cheek. “I’d love to leave myself behind for a working lunch, but I think I better stay focused on the meeting. Do you mind if I invite myself to your place tonight? I hate to seem rude but I really want to do dinner tonight and I don’t really have any human food left at home.”

“Oh, absolutely, I’d love to have you over tonight.”

“Perfect, that’s wonderful! I’ll text you after work when I’m on my way. For now, I need to head over to the board room. Wish me luck!”

“Good luck, you’ll do great! If you need me to find some info for you quickly or help out in any other way while you're doing the meeting I’ll be here, just message me and I’ll chip in.”

“Sounds good, thanks!” She puts her game face on as she walks out of my office to face down the executives in her first major meeting on her plan to fix this place.

I wait in my small office, occupying my time by alternating between looking at my messages for any urgent needs from Olivia and doing some menial admin tasks. Luckily for both of us, she doesn’t seem to need any help, and a few minutes after she messages me “I’m back in my office, you should come here asap.”

I make the quick trip one door down to her office, and knock on the door. It unlocks, and she pulls it around to let me in. I don’t see her at first, but her voice comes from behind the door. “Come in quick, and close it behind you.”

I do so, and am greeted by Olivia standing right next to me, dressed in only her bra and panties. “I was so nervous until I got the presentation kicked off, and I killed it in there. The comedown from all that is making me so horny, and I’m starving. It’s time for my lunch, so get those clothes off.”

I very quickly comply, tossing off all my work clothes to meet Olivia’s pile of clothing on her desk. I finally get an unobstructed view of her as she removes her bra and panties, and she’s even more stunning. Her body absolutely defies biology and seems to be trying to defy physics as well. Although she’s nearly passable as someone with a pinup model’s genetics and a ton of enhancements on top, the faint lines in her skin where her pieces join together give her artificiality away.

I immediately rise to the occasion, and Olivia grabs hold of my cock, walking the both of us over to her desk as she sweeps the pile of clothes into her chair and takes a seat on the top of her desk.

“Let’s make this a quick one, I’m already ready to go, and I can see you’re eager too.” She lies back on the desk and spreads her legs wide apart into a split, then a little farther.

I move in immediately and take hold of my cock, guiding the first few inches into her. I grab hold of one of her thighs and start fucking her as my other hand gropes one of her massive breasts, feeling almost-but-not-quite natural, a little firmer and a lot perkier than a regular human set.

I pump into her, fucking her like her life depends on it, which is actually true in this case. She does her best to be as quiet as possible, covering her mouth when she thinks she’s getting too loud. Although there’s no other offices close by, and hers is nearly soundproof, the caution is understandable.

With an unobstructed view of her insane body, and the squeezing and sucking of her enhanced pussy, neither of us last very long. I grab hold of her tiny waist with both hands, surprised that my fingers nearly touch in the middle, and I pull her in for a powerful thrust. I cum into her as she covers her mouth again, staying fully hilted into her as she drinks directly from the tap.

Suddenly a crash comes from the office door. A coffee cup lies shattered on the floor, coffee splashed onto the high heels of the Vice President of HR, who is standing one step past the doorway. “Uhhhh what.”

“I know what this looks like, but I can explain!”

Lying there, Olivia says to herself “Damn it, not again…”