Zim X Reader - Blog Posts

HIIIIIII

I was wondering if you could do a part 2 or another Invader Zim oneshot or more headcanons. Only if you want to though!!

Ofc! 🥰 I'll do some headcanons this time❤

With the encouragement of my bestie I thought some up! @hitomisuzuya

⚠WARNING⚠: pregnancy and birth

Discovery and Early Reactions:

Confusion and Pride:

When Zim first realizes you're is pregnant, he might initially be baffled, even skeptical, as Irkens don’t usually reproduce in the same way. However, once he accepts it, he would be immensely proud, convinced his offspring will be the most superior smeet to ever exist.

Over-the-Top Protection:

Zim takes “protective” to a new level. He creates a series of bizarre gadgets designed to monitor the reader’s health 24/7, though they’re often uncomfortable or impractical. He insists on monitoring every little change, always declaring, “Your body must be in peak condition to produce the ultimate smeet!”

Clumsy Affection:

Despite his usual intensity, Zim tries to show small moments of gentleness, which are new for him. He’ll bring you strange Irken "snacks" he thinks are nutritious and will hover, awkwardly patting their head or shoulder to show he cares.

Preparing for the Birth:

Bizarre Nursery Set-Up:

Zim insists on building the perfect environment for their smeet, filling it with strange Irken technology and gadgets designed for optimal “growth and supremacy.” He even tries to make a “conqueror's crib,” filled with oddly shaped toys that resemble weapons, thinking it’ll prepare the smeet for a powerful future.

Irken "Rituals":

Zim talks about mysterious Irken rituals (which may or may not be real🤨) that are supposed to bring strength and resilience to smeets. He tries to adapt these rituals for you, such as making her chant Irken phrases or wear specific colors he claims have “cosmic significance.”

Obsession with Training:

Even before the smeet arrives, Zim speaks to your belly about their child’s future in conquest and Irken greatness, trying to give the smeet a “head start” in Irken knowledge, which might actually involve him ranting about the basics of invasion and tactics.

During the Pregnancy:

Constant Check-Ins and Worry:

Zim insists on checking in constantly, often in the most inconvenient ways. He’ll zap in out of nowhere, demanding updates on how the “human incubation process” is going, occasionally fussing over things he doesn’t understand but insists on controlling anyway.

Mood Swings and Patience Tests:

Zim is unused to human emotions and struggles to understand your mood swings. He tries to help but occasionally slips up, saying things like, “Stop your nonsensical crying, human! You’re growing an unstoppable warrior!” He ultimately tries to be patient, though his methods are often clumsy.

The Birth:

Over-the-Top Birth Plan:

Zim creates an entire “operation plan” for your labor, involving dramatic entrances, lasers, and Irken technology he insists will “ensure victory in birthing!” However, most of it is impractical, and when the moment arrives, he has to abandon his plans and just be there.

Unexpected Softness:

As their smeet arrives, Zim might find himself unexpectedly overwhelmed with emotions he’s never felt. He stares at his tiny offspring with wide eyes, not fully understanding his reaction but feeling an instinct to protect this little being.

Adjusting to Fatherhood:

Zim tries to teach their smeet the ways of Irken glory from day one, but he’s occasionally gentle in his own way. He awkwardly holds his smeet close, talking to them about “conquering inferior worlds” and bonding with his offspring in his own intense, proud way.

can i get smut headcanons or a one shot for Invader Zim?? I’ve been looking in the dark web (wattpad and tumblr😔) and can’t find any :(

feel free to take your time, and stay hydrated and healthy!

Ofc! There is a lack of Zim content 😭 I written a one shot for Zim! Been awhile but hope I'm still as good 🥺

Fem! Reader x Zim

⚠WARNING⚠:Abduction, Ovipositor, breeding, Eggs, Smut

Zim skulked around his laboratory, his large, crimson eyes narrowed as he scanned his control panel with a devious focus. A recent wave of human interactions had sparked a new curiosity in him: “pairing” was something entirely foreign to Irkens. They were made for conquest and war, with no distractions or attachments. And yet, he saw it in humans everywhere—such bonds, so distractingly nonsensical, so… intriguing. How had these Earthlings managed to thrive with so much… emotion?

And then there was you.

Zim had observed you with interest, though you were quite unlike that Dib human with his ridiculous obsession with proving Zim’s “alien-ness.” No, you were different. Your fascination with extraterrestrial life was genuine, without that irritating need to capture or expose. It was peculiar, almost foolishly open-minded… but it had given him an idea.

“Gir!” Zim called out, his voice sharp but with a hint of excitement. Gir appeared out of nowhere, somersaulting into view with his usual enthusiasm.

“Yes, my lord?” Gir squeaked, holding a taco he’d somehow acquired without leaving the base.

“Prepare the ship!” Zim declared, his eyes gleaming. “We have a mission of… abduction!”

Gir’s eyes sparkled. “Ooooh! Abduction! Who we grabbin’, Zim? Is it the big-headed boy?” he asked, bouncing up and down.

“No, no, no!” Zim scowled, gesturing wildly. “This human isn’t a pest like Dib! This one… this one actually seems to like aliens!” He hissed the last word as if it were the strangest revelation in the world.

Gir gasped, his eyes widening. “They like aliens?” He threw his arms around Zim in excitement. “Yay, new friend!”

Zim pushed him off, huffing in irritation but unable to hide a smirk. “Yes, yes! Now, enough hugs! We must do this with precision and stealth!” He climbed into his tiny spaceship, Gir clambering in beside him, still clutching his taco and humming with glee.

Moments later, you were standing in your room, stargazing through your window, unaware of the ship descending toward your neighborhood. You’d always loved the idea of life beyond Earth, imagining what otherworldly beings might be like. But as Zim’s ship hovered silently above your house, you would soon realize that reality was much stranger than anything you could have imagined.

Before you knew it, a soft green light engulfed you, lifting you gently off your feet. Your heart raced, a mix of terror and excitement flooding your senses. This was it! A real alien abduction!

As you ascended toward the ship, you could just make out a tiny green figure with large, bug-like eyes and a big, gleeful smile—accompanied by an even smaller robot in a dog costume, waving excitedly at you.

“Welcome, human!” Zim announced triumphantly, his voice echoing dramatically. “You are now in the presence of ZIM! Fear not! I have no intentions of dissecting you… yet!”

Gir skipped around you, giggling uncontrollably. “Hi! Do you like tacos? Can we be best friends?”

Zim groaned. “Gir, compose yourself! We have a mission of SCIENCE!” But he couldn’t help glancing at you with curiosity, taking in your surprised but delighted expression. Humans were strange indeed—but maybe, just maybe, this one would help him understand them.

The base was strangely quiet as Zim guided you into a sterile-looking room, dimly lit by a few screens blinking erratically on the walls. He moved with an almost uncharacteristic calm, but his crimson eyes were alight with that manic curiosity that you’d seen in him before.

“Sit there, human,” he commanded, gesturing toward a peculiar-looking chair. You hesitated, noting the odd assortment of machinery surrounding it, each piece connected to the chair by tangles of wires. Zim’s expression held an unsettling intensity as he fussed with a few dials, muttering to himself, “Fascinating… so very odd, these humans…”

When he glanced back at you, his tone softened, though his voice still carried a slightly condescending lilt. “You should be honored, human! You are about to assist ZIM in unlocking the mystery of human ‘pairing’… and whatever purpose it may serve.”

He leaned in, examining you with those unnervingly bright eyes, his face far too close for comfort. “Humans are curious creatures… forming attachments for no strategic purpose, no tactical advantage,” he said, as if the concept itself was a foreign toxin. “And yet—there is something to it, isn’t there? These attachments… these connections you cling to.”

The alien strapped an odd, dome-shaped helmet over your head, wires dangling from its sides, some with tiny electrodes that pressed lightly against your temples. As he adjusted the helmet, he continued his monologue, almost to himself. “You Earthlings cling to each other, not because you are forced to… but because you want to. And I, the all-powerful Zim, intend to understand it.”

He adjusted a monitor beside the chair, the screen casting a soft glow over his face. “Prepare yourself, human! Zim shall now probe the depths of your mind.” His words would’ve sounded threatening if it weren’t for the strange fascination in his voice, as though he himself was teetering on the edge of some grand revelation he didn’t quite grasp.

With a flick of his clawed finger, Zim activated the machine. You felt a soft hum, a gentle pulsing of light from the monitor. The screen before him began to flash images—scenes of people embracing, holding hands, sharing close moments. As each image blinked by, Zim’s expression shifted from smug triumph to bewilderment.

“These… interactions…” he muttered, eyes narrowing. “Why would a creature seek such vulnerability? Why rely on… on another for comfort?” He practically spat the word, as if he couldn’t comprehend its meaning, and yet… something in his expression softened. His gaze flicked from the screen to you, eyes probing, intense. “Explain it to me,” he demanded, though his voice was quieter than before. “Why does your kind… choose this?”

The screen continued its cascade of images, and for a fleeting moment, Zim’s façade of unbreakable ego faltered. You could see the alien’s frustration—yet also a trace of reluctant curiosity, as if something in him was drawn to this strange phenomenon, against his own programming.

To make the setting feel more intimate while keeping Zim in character, you could gradually shift the focus from his cold, clinical approach to something that intrigues him on a more personal level. This builds tension naturally, as Zim becomes less of an “alien scientist” and more genuinely curious about you as an individual. Here’s how you could make that transition:

Zim stared at the screen, silent, as images of human intimacy—hands interlocking, gentle touches, close gazes—flashed across it. His intense eyes flicked back and forth, analyzing each scene with a growing sense of perplexity and, perhaps, the slightest hint of intrigue. For a few moments, he was still, deep in thought.

Then, as if reaching some decision, he abruptly turned the machine off. The room fell into a quiet hum, leaving only the faint glow of the monitor lighting the space between you.

Zim’s gaze shifted to you, his eyes a little softer, though still guarded. He spoke, his voice lower, more thoughtful than before. “These attachments…” he began, his usual confidence giving way to something almost hesitant, “are all a… choice? A decision you make?”

You nodded, unsure where he was leading with this question. He tilted his head, his antennae twitching as he continued to study you with that intense curiosity, but now it seemed more directed at you than the concept of “human pairing” itself.

“Humans willingly place themselves in such vulnerable situations,” he muttered, more to himself than to you. He took a hesitant step closer, his gaze flickering over you with both fascination and wariness. “They seek comfort… and understanding?” He sounded almost skeptical, as if he couldn’t quite believe that such things could be desirable.

The silence between you grew. Zim, though he usually carried himself with sharp arrogance, now seemed conflicted, unsure of how to proceed. You could sense his curiosity deepening, yet he was clearly out of his element.

“What would it…” His words trailed off, and for a moment, he just stared, a hint of vulnerability in his expression. “What would it mean,” he tried again, “for an Irken to… to attempt such an interaction?”

He sat down across from you, for once lacking his usual commanding posture. Instead, he looked almost… uncertain, a question in his eyes that he couldn’t quite bring himself to ask aloud.

“Explain it to me,” he whispered, his voice unusually soft, “this need to understand each other, to… to feel close.”

The quiet hum of the base faded into the background, leaving just the two of you in the dim glow. Zim’s sharp, alien features softened slightly in the shadows, and for the first time, he seemed to be listening, truly listening, waiting to hear your answer. This shift, subtle yet deeply personal, began to dissolve the clinical walls of his laboratory, creating a rare, vulnerable space for both of you.

“it's.. Hard to explain but.. “ you think for a moment, truly lost at the explanation yet it seemed he's so eager to know, to.. Experience it with you, it made your heart race and mind fuzzy at the thought of being with an alien.. Being with him.

“Yes.. People ‘pair’ together because they feel.. Love and trusting with them. And well, some pair for the.. Intimate expect of it” You explain the best you could we Zim seem interested in the last part “Intimate? Touching?” He spoke closing in on you, removing the helmet that he had for the machine

“Then present yourself to me, I'll be your filthy mate human” he spoke with authority as if demanding, yet you found no issue in it as his gloved hands reached out to touch your face before you leaned in to kiss him, catching him by surprise yet he kissed back, harshly too, wanting to dominate you as your invader.

He pulls you onto an examination table, the closest and clean surface as everything else is covered by machinery, his hands grip and pull at your clothing, Zim’s eyes were an intense, otherworldly red—sharp and brilliant, almost like the glow of molten metal. They held a fierce, focused light, their color shifting subtly with his emotions, flashing with irritation or narrowing in suspicion. In rare, unguarded moments, a softer glint would appear in them, like a spark dulled just slightly, as if he were capable of more than just calculated contempt.

When he looked at you now, the red had an almost hypnotic depth, somewhere between curiosity and a hint of something he couldn’t—or wouldn’t—admit. His gaze was piercing and unwavering, yet it held a new, cautious warmth, as though he were seeing you for the first time in a way he didn’t entirely understand. His leather gloves felt chillingly cold as he pulled your clothing off with a loud rip,disregarding any attachment you might've had to the outfit, now gazing down at your body with a hunger.

“Humans are..fascinating..” He murmurs as his hands down your body, groping and feeling before latching onto your neck, wanting to mark you, wanting to make you his. You couldn't help but moan and squirm under his touch, what surprised you the most was feeling something cold and wet against your thigh but before you could see what it was his lips crashed into yours, a harsh dominating kiss,his lips was cold as they mix with your warm lips.

His grip and kiss spoke volumes, he's in charge, he is your invader.

“Stay still human.. “ he spoke in a hiss, you feel the same cold feeling press against your wet hole, finally getting a look you see he had an ovipositor rather then a traditional cock. Within seconds he pushed in, his ovipositor easily slid into you with the lube like substance on it. His groans and growls muffled by your neck as he quickly picked up pace, fucking into you like an animal in heat, who knew a species made by machines could be so passionate and rough? Your moans mix with his as his ovipositor pulses, growing close he curses in his language before growling “cum with me human!” as up ur pussy clamps against his ovipositor it nestled deep within your waiting womb as you felt small gelatin like eggs push through and into your womb, after about 4 he would spurt a chilling cold cum to fill the rest of the space before pulling out. His hand holding onto your stomach, his young waiting inside

“You're mine now human~” he.. Purred almost as he held you close to him.