#invaderzimsmut

[tabacat]

Welcome Home (Dib x Zim) (Smut)

Ten years after Enter the Florpus, Zim has grown as an invader on planet irk, somehow becoming the tallest due to his growth rate from eating human foods. He could not shake the thought of one human. Dib Membrane. Zim pulled on a new invader outfit, tailored to his new height and slim build. He smoothed down his antennae and stepped to face the irkens which escorted him. 

"You are not to bother me. The home ship will remain in the atmosphere, not to land. Does Zim make himself clear?"

 The lot of them nodded and muttered, worried for his great tallest's safety. Zim smirked and tapped a microphone.

 "You knew I was coming last time somehow, so maybe you can pick up this frequency. Did you miss me, Membrane?" 

He set off into his voot pod and charted his course down to where he once lived with Gir, who he still, surprisingly, kept by his side. Dib froze hearing the audio coming from his laptop. no way. Despite the preparation, he had taken since the disappearance of the mangy alien he couldn't believe that his voice still gave a chill down the spine of his now plush back 

"Holy shit..... Holy crap. What do I do???"

The message passed as soon as it started, and Dib forgot to try and respond. He sat there dumbfounded atop his roof. Jumping down into his window, he rushes to his front door, hoping with all of his beings that he'll see Zim there just like all those years ago. The voot blasted through the atmosphere, it sent a meteor-type flash through the night sky as it plummeted to where it had once been. Gir sang a little ditty and Zim stroked his head with his now two claws, grinning at the voot slammed into the house that had once been his. He stepped out in one piece, strutting out to the street, rubbing his claws where he had felt once before. He didn't bother to disguise himself, bending over slightly to exit the home, and walking on his overgrown lawn. 

"Oh dear, we've grown quite messy down here, yes Gir?" he cackled "What will the neighbors think of the mighty Zim!?" 

Ignoring the destruction of the perusing crash, Dib takes in the new structured form of Zim. Analyzing the alien up and down, he can't help but feel warmth start to creep through his body. From the round of his cheeks to the growing "member" below the belt.

"Zim." he reaches out to him, taking small steps. "Where--when--Why did you leave?" 

He raised a brow "Excuse me? How do you know the great Zim's name?" he seemed taken aback, moving a nervous foot backward to step away. He didn't seem to notice dib, but he moved gracefully as a leader would. Then something flickered across his pale green face, met with a blush to the sides of it, his left antenna giving a twitch. 

"This may sound funny, but are you Dib Membrane?" He sized him up and down, locking to his.. member.. for a moment, before flicking away. 

“You know that, have I really gained that much weight?” 

he tries to lighten the mood, scratching the back of his head. He took the small detail of Zim looking down. Realizing what he saw he heated up even more. Even to the point it started to twitch in his boxers. 

“ANYWAY— you’re definitely, uh, taller?” god his social skills hadn’t changed. He was as awkward as ever

 “I missed you”. 

Zim smirked "It is.. not the weight. You've grown taller. It's a sign of power, good lucks, and hard work in irken culture."

 He cupped Dib's face with his two claws, moving them up and down and side to side to study his face 

"You have hair on your chin now. I didn't think the Dib stink was capable of such things. What a surprise. Have you become the leader of this FILTHY planet yet or are you still... well. A loser?~ Dib stink is too smart to just be a loser. You're powerful such as I! The mighty Zim!" he cocked his hip to the side 

"I'll suppose you're excited to see my excellence back in your presence?~"

 he set Gir down, playing with Dib's long ahoge in a sensual manner. He rests one hand on the claws cupping his face, the other on the thin hip of his lover 

"God you had no idea how much I needed you" 

He pulls on the small of Zim's back, bringing him closer. Resting his mouth on Zim's skinny neck, breathing lowly, he licks up to the alien's collarbone.

 "Tell me oh mighty Zim."

 Dib kisses where a human ear should be, then continues to press his hips closer to Zim's 

"Did you miss me too?".

Zim shuddered "Is this one of your gross dirty human tricks Dib thing? I don't remember you having such an interest in me like this!"

 he blushed an intense amount, tilting his head to the side

 "I suppose I missed you... stinky.. dirty.. human.. thingy. Despite your grossness, I shall reward you with affection back." 

He licked Dib's face, saliva rolling down the side of his face 

"It's an irken g-greeting. Yes. Greeting." he'd stutter briefly 'UUUUHM NOOOO! YOU JUST KISSED HIMMM! THAT'S AN IRKEN KISSSSSY KISS! MWAAAH!' "QUIET GIR!" he kicked Gir across the lawn. 

"Yes. I missed you Dibby.. my missions are oh-so-boring without a genius like you! Zim is so borrrreddd.."

Dib shakes off the fact that a 6"6 alien just drop-kicked a small robot across his lawn

 "Oh I bet they were, I like that shade of purple on you." 

The hand on Zim's hip lowers slightly, going in the direction of the inner thigh "If you're that bored doing nothing out here. I can invite you inside. We can catch up on each other." 

Dib rests his forehead on Zim's, moaning lightly as he feels the man in Infront of him accidentally brush up against his crotch 

"W-was that also an irken greeting?"

 Zim waved his hands around frantically 

"A-ah! No! I didn't- well- I didn't mean to- you- aah!" 

he blushed deeper, his whole face turning purplish. 

"Y-yes. I'd be interested in.. erm. Seeing your home base! Take Zim to your base NOWWWW! Do not.. do not play with Zim's feelings." 

he haughtily danced over to Gir, excited to.. converse... with dib. Closing the door behind the pair, both steadily make their way up the stairs. Once in a mildly clean room, Dib's breathing began to get heavier. Slowly, but surely he moved behind the green creature. Hands exploring the body of the man in front of him.

 "Tell me you want me to. Tell me you waited for me just as I waited for you" 

Dib's glasses are fogged from the proximity of the two. 

"You became my everything when you left...I missed the way we used to banter..." embarrassed dib averts his eyes "God I can't believe I'm saying this...but I don't want to stop...I can't stop." he moves in closer. 

"Oh, I want you, Dib. I want you so much. I rule everything, but what is the point of I don't rule your stinky.. stink head."

 He hiked up his dress, revealing his thighs to Dib, where the fabric bit into the fat of his long legs making for a pretty great 'absolute territory'. He smirked at him as he went to remove his arm cuffs, tossing them aside 

"I was your first alien, I'm pretty important... aren't I?~" Zim nervously stepped back, falling onto the bed with a strangled cry "A-a-ah!" He wrapped his arms around Dib as he fell, bringing him on top of himself

 Without a second thought, Dib pins the alien's claws above his head. Watching him slightly wriggle in his grasp, he kisses down the body of the green boy. He can feel the breathing pattern, his chest expanding and compressing. Feeling his struggle to cope with the pleasure just riles him up even more

 "You'll be my first and only" continue kissing the lower torso, dangerously close to the 'special' part of the groin. "Those red eyes better not look anywhere but here got that?" Dib takes his shirt off, revealing his stocky build. Zim panted, not fully understanding the situation. Zim was not accustomed to human mating practices, but he certainly could tell it was the human's version of a heat. He removed his dress, the shoulder pads coming off with it.

 "O-Only? Is that so? Well, Dib thing… you shall be my only humans."

 he removed a shoe, rubbing a knee-high socked foot on Dib's bulging pants. He bit his lip lightly "You are so wonderful-looking... so so wonderful looking." Dib hung his head low, the shock of pleasure shooting through his spine 

"A-ah... Fuck Zim do you know what you're doing to me"

 he grabs the alien's chin, tilting his head up towards him. With no time for Zim to react, he kisses him. His tongue explored the inside of his mouth. Zim's moans vibrate through their connected jaws. Dib can't stop, the unknown territory and mysterious texture of the interior of Zim's mouth makes him want to ravish him. 

"I waited" he continued to pull away briefly to speak "I waited years for you." It's getting hotter by the second "Sitting on my roof, on that stupid computer." "Did you think of me too? Did you play with yourself thinking of all the ways I could fuck you?" 

"F-fuck..? I am not so familiar with th-the term. I s-suppose I did miss you... I felt my body grow hotter during my heats with the thought of you. We.. use pods on planet irk in order to not trans..transm..m-mit disease... I... I wanted you so much. I missed your smelliness. You're... so interesting to me~" 

he panted at Dib, not understanding what this feeling was "What... what is this.. what are you doing to me..? Did you poison me..?" 

He locked eyes nervously with dib, shifting to remove his other shoe. He felt his crotch grow wet and begin to slither, his knees closed together with a jolt. A low chuckle emitted from Dib's chest, it came out crackly and with a rasp.

"You're aDORable." oh fuck. Seriously? Did he seriously just voice crack at a time like this? He blushes with embarrassment and coughs to try and cover up what little dignity he had left. Zim starts to giggle, which turns into a laugh. "Y-You-hehe-You--ah!" 

Dib puts one of his thick fingers dangerously close to this entrance. The tip is so tantalizingly close, he can feel the wetness and heat radiating off him.  

"H-hagh.. d-don't touch that..~ Zim isn't so sure it's safe for you to do this." He throbbed inside, his clawed toes digging into the bed.

 "That i-is besides the point! You feeble, dirty, thingy! HUUUUMAAANNN!! Your voice crackling was rather... I will say, attractive." He grinned "My tallest before me voice cracked quite a bit, it's charming. You are charming, dib-stink."

 he began to play with dib's crotch with his foot once more 

"What have you got hidden in those pants Dib thing? Show me now human scum~". Dib grabs his ankle as well as the other, pushing his legs upward towards his head Dib exposes Zim's holes.

 "Oh baby, all this for me?" He brings his face closer to the irken's ass, feeling his legs twitching in anticipation. 

"I want you to beg for me" 

"U-Unff~" dib's breath on his body made him moan in anticipation 

"Th-The mighty Zim d-does not beg!" Zim grunted and bit his lip "Please mate with me dib thing..~ put your smelly body into mine.. gross thing. You stink and it's so hot~"

 Something snapped in Dib's mind, he pulls down his boxers. His 7-inch member slapped his stomach then laying on Zim's hot body. It's red at the tip, cut with a long vein running on the left of his shaft. He takes note of the small whimper that emits from Zim. They've gone this far, no point in stopping now. With a deep breath, he pushes himself into him. Zim went to protest and gasped loudly

 "A-AaUngH!~" Zim moaned aloud, pressing his body against Dib "D-Dib! D-DIB THING! S-STOP~ OH IT'S TOO MUCH DIB!"

 he crumpled, whimpering and whining. It gripped onto dib, attempting to pull him deeper, it was tighter than anything Dib could possibly imagine. The fluids it secreted coated Dib's member and made the pleasure even more desirable 

"W-Whaahuh.. w-why is I so.. SO BIG! A-Are all humans built with a large one like th-this!?"

 he grunted, grinding up against Dib and stuttering out a few more incomprehensible syllables.

 "f-fuCK Zim... You're s-so fucki-ing tight"

 His hips didn't seem to falter, it was as if they had a mind of their own. 

"look at you... fuck..A-Auuhh...it's pulling me in~ " 

Dib's hands went to Zim's antenna, slightly pulling on them enough to make the irken's back curl. At the angle they were doing, a bulge would be seen occasionally popping in and out of Zim's stomach. His hands needed more to grab onto, they moved on from the antenna to the neck. Grabbing him by the chin and pulling him close, this breath hot on Zim's back. 

"a-auughh...Zim~ ". Zim grappled the bed, clawing at the mattress to hold steady "H-Haaa~! W-Why are- why is it so big- why.. aah.. you stink.. s-so bad. H-Human.. d-destroy me pleassse!!~"

 he slammed his hips backward into Dib with his motions, his antennae straightening out

 "Oh, my tallest.. ohhh~ goodness. Y-You're so powerful.. how could a disgusting human be s0-sssoOOO GOOD!?!?!~" 

his moans trailed off into grunts and panting like an animal, uttering in irken tongue "I love you Dib thing!! ohhhh I love youuu...~" Gir is still at the window. 

Hearing Zim moaning only made his dick throb harder. He can feel him get tighter with each thrust, his body bounces in sync with each sweet noise that comes from his vocal cords. The more force he put into it the needier he felt as if there was no limit to how much ecstasy he could feel in a moment. Then, an idea popped into Dib's head. He halted his movements.

 "h-haH!? DIB THING!? W-WHY DO YOU STOP!?" 

he looked over his shoulder, tears in his eyes from the aggressive pounding "W-what is the meaning of this!?" 

he grinded on dib, squirming needily as if he were back ten years ago under Dib's grasp, he growled at him under his breath. Without a word, Dib flipped Zim onto his back. His stomach now exposed to him. 

"I want you to spread your legs for me." 

"W-WHAT--You dISRESPECT the TALLEST IRKEN????"

 Despite his protest, Zim opened his legs, oh how vulnerable he felt, but oh how hot was it to see the Dib's towering figure pinning him down. Zim's upper hole was now replaced with a prolapsed tentacle. Confused, but not deterred. Dib continues by slamming himself back inside Zim 

"a-AUUNNNGGG~ "

 God, every sound he makes just feeds more into Dib's desires. As he thrusts one hand follows the edges of Zim's body and reaches the appendage (tentacle) sliding his hand up and down the shaft. Zim gasped loudly, feeling his tentacle push back against his body

 "G-GHuah?! D-DIB THING~ R-RELEASE IT THIS INSTANT! Ooh~!" he whined and thrust into the hands of Dib, sweating against the touch of his loving enemy. 

"oh... D-DIB THING PLEASE DESTROY ME! PUT THE GREAT ZIM IN HIS PLACE~" he noticed Gir at the window, covering his face with one hand and looking aside from the window 

"S-Stupid faulty Sir unit.. not now.."Dib's gaze softens, and his hips slow but do not stop. Which catches the attention of Zim 

"Why-hu?" Zim's sentence was cut short with a gentle but passionate kiss from Dib. His surprised eyes slowly blink closed. Falling deep into the warmth of the two, together.

 "I love you Zim" Zim put his arms around Dib, whining

 "I... I love you as well Dib." he smiled, the first time saying dib's name softly. he kissed Dib again, his tongue sliding into the back of Dib's throat, enough to make him gag

 "mwah!~" he'd pull back, a large strand of saliva connecting them. The line of saliva reminded Dib of the position they were currently in. Looking back into one another's eyes Dib thrusts, and hard. This time, a tight coil kept growing inside of Dib's abdomen, he's felt it before but it was never this enticing or nearly as good

 "0-0h God~ Do you feel that too?" he tries to maintain a sentence. \

"F-ffaah.. y-yes~ Oooh yes~ Dib- f-finish inside of me.. m-my body. It yearns dib thing!~" he dug his claws into Dib's back

 "It's too good Dib thing... Ah... I must.. have all of you~". no words were needed. Dib buried his head in his neck of Zim. Both their breathing getting uneven and louder, it became tighter, and tighter, and tighter.

 "AnnNg~ " Thick white ropes coated the inside of Zim, overflowing and seeping out of him. They stayed in that position. Processing what they had done. Waves of pleasure ran through them, the adrenaline pumping but slowly halting. Zim came too, a clear pink slime covering the hands of dib

 "Dib w-what is this.. what is.. inside me..?" he cringed, nervously adjusting his body 

"wait... WAIIIIIITTT! What have we done!? No.. NOOOO! This has at least violated multiple crimes... A-ARE YOU OF HUMAN AGE OF CONSENT!? A-ARE WE BREEDING COMPATIBLE!? WE USED NO PROTECTION! OOOHHH GIR! GIR COME HERE, RUN A DIAGNOSTIC GIR!" A crashing was heard in the distance.

 "Holy shit we... we oh fuck. I did it with an alien" 

"I had intercourse with a HUUUUMAAANN!!! aAAGH! THIS CANNOT BE GOOD! GIR! GIR COPY. DO YOU COPYYYY!?" he pulled away from Dib, pulling his dress over himself, hugging Dib, and nuzzling his head in his chest "Ohh... I hope my people don't ostracize me.. the great Zim.. for this. Dib-Love, d-do not let any human know of this! If it gets to other planets- ahhh my head could be on quite the platter-" 

"GIR"

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