Chapter Text
Dib was writing, though truly more like scribbling info and doodles of Zim into his workbook, his mind drafting off to more private thoughts, and more ideas plague his mind about the parts of the alien he has yet to understand, or have gotten to learn about. And the deeper he thought about it the more he became.. Distracted, not even hearing the lock of his window coming undone. No, his head was pleasantly swimming deeper and deeper with the thought of the cute small irken, of how Zim moves and speaks, to how he seems to get into a state of forced quiet when Dib looms over him just right.. The humans breathing gets heavier and warmer, the things he’s writing down or drawing more graphic without him noticing until the thoughts hit a breaking point, getting too soft, wondering the taste of the others lips, or the smell of him in the morning. He snapped himself out of it with a deep gasp, shaking his head as a shudder runs down his spine with a small whimper as he feels how burning his cheeks and ears are, his glasses fogged up from his own heated breath.
Looking down his heart might have busted from his chest, his workbook was filled with explicit writings about things he wants to do to the small alien, or fantasies of Zim doing certain things that is just plain serialization to the very core. The doodles were worse, dark but lust hinted vivisection's, the aliens tears and wet thighs, multiple upon multiple drawings of what his crotch could look like. Is it like Dib's own, or is it something completely new?
He swallows his shame as he slams the book shut, knowing there is no way he can use that for his college classes now. He takes a deep breath as he hangs his head with his forehead against the balls of his palms, But where he opened his eyes again he saw the other part of the problem... His own body was burning and revving to go, his pants felt so tight around his hips, and his fly might as well as been hanging on for near life by how stretched the fabric was.
God why did this have to happen to him??
"Curse you Zim.." He muttered as he moved a hand down with a shaky breath.
"Zim haven't even done anything yet."
The voice stopped the other in his tracks, the curve of his own knuckles brushing over himself pulling away so fast he might as well have cut the air in half. "Agh! ZIM WHAT ARE YOU DOING HERE?!"
The small alien sitting on the windowsill looking in just tilts his head with a smile, he was coming here to just start a fight because he was bored, and well... Gir was being a little too loud and messy for him right now, he does not think he could to handle the smell of those disgusting humans foods... eghh..yuck. But instead, now he thinks he found something much better. "I live here." He replies with a cheeky pink hued open smile, picking his words to bring back memories of the past. His dorm is just the one above Dib's, and he makes sure to not go a day, nor night, without disturbing the other go by. from full on letting Gir bounce off the walls, to just setting loud annoying music to play for hours at end. he prides himself on the others lost sleep.
But now... Now he could blackmail the human with the picture hes gotten on his phone, the sweaty flush and bulging jeans clearly in view as he wrote in that dumb book. He has learned these movements are very private to humans, and just how to use them based off of what others students have done. Though, he'll have to be careful and ban Gir from the phone to keep him from deleting the photo for fun. Which might be hard since how often he lets Gir have it to play games or whatever will have them sit still for a few moments so Zim could work.
"Agh-" Zim's eyes widen as he felt the small needle strike into his skin, embedding itself in the meat right above his rear. His disguise blocks his antennae from popping up in surprise, his breath catching with a small hitch of pain as he moved his hand to get a grip on the dart and pull it out, looking at it with narrowed eyes. Who's bright idea was it for the security guard to have a tranquilizer gun? Is that really necessary to keep students in their dorms at night on earth? Or maybe it's just this weird crazy city that does it..? The dart slips from his fingers, clunking against the floor. Whatever, he'll destroy this planet in due time. But ah.. Maybe afters hes done feeling...Woozy. That dosage is far too much his PAK informs him as he does a full scan. That amount was set for the humans, so enough for a much bigger target. And Zim... Well Zim is quite small, in height and proportions.
Zim would have fallen out of that window, his PAK adding extra weight to his back that made him lean that way as the drug slowly made him lose his balance. If Dib hadn't ran across the room and grab his arms as he started to slip he probably would have met that hard pavement below. His eyes blinking slowly as he tried to regain himself. "ughh.." He groaned as the other tugged him inside, them both falling onto Dib's bed close by with a soft “Oof” coming from the humans throat from the sudden weight on him.
He can hear the Dib's racing heart under him as his cheek is squished on the humans chest, his own breathing has relaxed deeply, and he's really struggling to keep his eyes open. He can hear the others rambling but it's fading out as the tranquilizer numbs his mind and body, his fingers slowly loosing their new hold on Dib's coat.
He knows it's a bad idea to let his eyes close, but he really can't fight it off anymore.
Another soft grumble was heard from the alien as Dib pulled him closer, breathing heavily as he looked down at the unconscious form of the other. His eyes flit to the dart on the floor, than back to Zim, his hand moving slowly and shaky to the irkens hip, pressing into the soft meat right above his rear where the needle entered him, the other didn't react anymore, and he was just so still, only Dib's hands moving him really changed any of his position...
He's just.. So.. Vulnerable.. Like this...
He could finally prove it to everyone, this is undeniable proof right in his arms. Once they all see him they will finally know he's never been crazy, and that everything he has ever said was true... Or uhh well, most of it anyway. His father will finally stop seeing him as his"poor insane son", and everyone will start taking paranormal investigators serious like they should have from the start! Yes once they see his soft but warm green skin, and his pretty pupil-less deep magenta eyes, and his small precious but harder to break than it looks frame, and his sensitive thin antennae... And... And.. BY SATURN WHAT AM I EVEN THINKING ABOUT!!?!?
Dib swallows thickly, his shaking hands moving up to press two fingers against the alien's throat while his other moves to slip that black wig off, those long thin antennas being freed and drooping down to lay against the back of Zim's head in a relaxed posture. "I'm.. I'm just making sure that dart didn't damage anything first.." And he chooses to believe that, even though part of him knows it's a lie. He should feel guilty, but all his mind is set is on the feel of the other, and the thrill of something he has denied thinking about for so long.
The irkens pulse is slow but safe, like if he was lost in a very deep sleep. And Dib is careful as he lifts the others chin in his hand, his other hand fingers gently pulling the others eyes open to slip out those blue contacts one at a time. His heart spiking at the soft confused noise that bubbled out of Zim's throat. Now the other looks more like his alien self that Dib secretly loves. Even with his eyes closed again the other is just so.... Cute.. It's a weird feeling, but also a possessive one as he continues to cup the others face in his palms, smiling a little too widely down at him.
Zim's clothes were always...Kind of silly, but somehow it worked out in a way... Or at least this one isn't the worse. Those black leggings are there like always, as well as those knee-high boots. He was wearing a shiny pink skirt that would have been kind of short on anyone else, which Dib will never reveal is one of his favorite things. And to top it off, not counting the black gloves, is an oversize university sweater that is always slipping off one shoulder. The alien thought it helped make him look more human and blended in with the other students, but they were completely out of smaller sizes where he tried to get one.. So Dib had to be constantly teased by the sight of a smooth green shoulder or a touch of collarbone.
the back of his thigh is warm where Dib didn't notice he placed his hand, the irkens antennae giving a small twitch but other than that.. Zim was truly knocked out from just one human tranquilizer... And maybe Dib should keep his hands to himself, or actually get some photos for proof, or even call someone to come look at Zim because there is no way he's getting out of his own dorm room before this wears off without an dart to somewhere himself... But..
He can't help the way his hand slowly slides up, feeling the warm heat under the leggings and the squish of the others body, his own breathing becoming more labored by the second as he rests it right underneath the skirt of the others. His face blooming in deep reds as he slowly squeezes the cheek in his hand, eyes flitting down to watch where the skirt is a little pushed up but still mostly over his hand. It was wrong to touch someone like this, even if Zim is an evil alien... But it felt.. It felt too good to stop now.
He shuffles the irken a little higher up on himself so he can sit up, gently catching one of those antennae in-between his lips and letting his teeth scrape up it, gently biting down and shifting his jaw to earn more of those little gasps or shudders from the alien. He licked the rest of the way and caught the hooked tip of it in his mouth, sucking gently before letting it go with a wet pop.
The sounds the other made only fueled him...
He settles the irken onto his stomach on the bed, making sure his antennae don't get caught under him. His glasses are fogging up by his own breaths again but he refuses to remove them, he needed to see every part of this. his overly hot and maybe a little clammy hands slide down from the others shoulders, down his sides and squeezing that small waist, followed by a small tug down that cause the alien to let out a quiet huff of air. "god you're just so small, aren't you?" He chuckles with a dark smile as he looms over the other, his hands moving down again until he reaches those thighs and gently parts them, his own heart spiking in thrilling excitement and hidden guilt.
Hands rub those thighs soothingly before moving away, the light glinting off Dib's round glasses as he grips the bottom hem of that shiny little skirt, lifting it up ever so slowly to tease himself, and even if it is all covered, god just the sight of his form is enough to send heat swirling in his belly, settling deep. his cock twitches in interest and he knows there's no way he can deny himself now.. He breathes out deeply as he releases the skirt once he has it bunched up at the others waist, his trembling fingers moving on to slip into the top of the others leggings, shaking enough he misses the first time, fingers hooking as he moved his other hand to grip a hip tight enough to lift it up enough to start tugging that down too.
Dib's heart might as well have stopped, or maybe his face should be stuck in these probably creepy expressions of his, but he couldn't care less what he looks like right now, not when he finally has Zim right where he wants him. And damn what a sight it is, the aliens skin tone is the same lush green there as it is everywhere else, but that little stripe of pink? Fuckkk.. He might just finish in his pants before he even gets inside him...
He leans down, using his hand to hold the others thighs apart and his lower half up slightly, his free hand moves to lightly skim over the crease of his inner thigh.. The skin there is so soft and warm.. He brushes his thumb over that small slit, feeling the other shiver and whine into the blanket. He’s barely blinking anymore as he digs his thumb into the skin next to it and pulls to the side, biting his lip with a muffled moan at the sight of that lubricated hole.
Shitshitshit, he's so hot..
"Hahh..so this is what you look like... It's kind of similar to a vagina, but without the labias or clit.." He lifts his thumb off to release the skin, watching the small dribbling of pink tinted slick bead and drip out, causing Dib to subconsciously lick his lips, vision narrowing in to that simple area between the irkens thighs. "I wonder where feels the best for you.." He lets his fingers pet over the others slit, earning more of those reluctant little sounds from Zim, he swirls the pads of his fingers over the area the clit would have been on a human before slowly moving those circling fingers downwards, earning a much more pleased gasp when he does it against his tiny opening, pressing harder so it catches just enough to make a muscle try to jump in the aliens leg before slowly pushing one finger inside and curling it, his ears burning at the hitch in the others breathing and the clench of his insides around his digit. Oh shit, oh fuck.. His insides are so soft and warm, the texture is a little bumpy but so squishy..
He slips his finger out to grab his backpack, stumbling on his legs like a newborn fawn to get it before dragging it closer to the bed, just in case he needs anything else. If he didn't do this now he knows he'll forget and get carried away, and then he wouldn't have a sample..
This time when he brushes his fingers against the other he pushes two fingers inside, his smile spreading just a little wider at the pain grunt from Zim. The other just looks so pretty when he spreads his fingers apart, his insides slowly starting to get wetter the more Dib plays with it.. Mmm, he's just so perfect.. Dib's continued to thrust his fingers in and out of the other, curling them just right where they're in as far as they'll go, watching and analyzing every little move of the irkens. The way he pants, or how his cheeks start to gain a color to them, as well as the skin around his slit.. He slows as he feels *something* shift inside the other, sliding against his fingers. His eyes widen and he can't help how his jaw falls open as that worm like tentacle slowly emerges from the top of the slit, so slimy and weirdly similar to Zim's tongue? though it was thicker at the base and thinner like a point at the tip.
He moves his other hand to gently clasp the alien dick?-He thinks that's what it is at least. -in his hands. It curled around his fingers, almost like it was trying to rub itself off on him, and he swallows down the thick saliva in his mouth before starting to stroke it as he continued to finger the small alien.
Once he finally starts dripping enough Dib spreads his fingers again, watching how it slowly leaked out of him, he moves up the small glass tube, pressing the cold lip of it right against him, seeing the other shudder as it collects his slick until it's full and Dib caps it, gently setting it on the bedside table..
He couldn't take it anymore.. Now that it wouldn't taint the sample he leans down farther, his thumbs rubbing the skin right next to the slit before pressing and pulling apart to open him up for him again. The scent hit him first, weirdly sweet but in an outsidey kind of way?? Like nectar and pollen. The rest of Zim normally smells like metal and glue, so this is a weird, but welcomed surprised. But Dib is pretty sure he would he sadly would have loved any scent. The second thing is the taste as he finally gets his tongue on him, licking a bold stripe up the whole thing. it was very faint, almost like nothing or water, but also slightly sweetened.. maybe it was all the sugar the irken eats? He doesn't know, and for once he's a little too busy to care as he shoves his face into the others crotch, groaning at the smell as he licks into him.
This was a dream, a perfect world where he finally gets what hes wants, and everything is just perfect about this little loud alien... Especially now that hes not so loud.. The way he can't even fight back or scream.. Heh.. Maybe it shouldn't be making him ache as deep as it is, but he can have a fix for that by simply rolling his hips into the mattress as he continues to eat out his favorite little rival.
He doesn't know how many minutes he spends between the others legs, or how much of the irkens arousal he has swallowed, or if it's even safe for him to swallow it... But that's later Dib's problem. He needs this. When he pulls back up his glasses are askew and wet, and his lips are bright in color and soaked. There's a pillow under the others hips now, Dib's panting but not moving far away, the others scent is just so good he moans as he presses his face back in for a few last minute kisses against that sensitive hole and tentacle.
He cleans his glasses with his shirt as he watches the others trembling body below his, he hasn't lost track of how many times the other has came yet. "Three times just from a humans mouth? How slutty Zim, what would your Tallest think?" He kissed the corner of his closed eye, right where the tear from over-stimulation is beading. he wonders how the other would respond to his degrading, would he just yell like usual, or would he shake and cry under the pleasure of his actions? Dib knows it's the first one, but he can imagine the second at least...
"Y'know, I'm not even sure you can take me.." He whispers where the others inner ear should be, brushing his nose against the irkens cheek afterwards. He's fully looming over the other, his hands gripping that small waist and soft narrow hip. "But you've always been good at just taking it, haven't you?" He moves to mouth at the others throat as he sadly has to move his hands to undo his fly, groaning at the relief of pressure. "Just be a good little alien and stay nice and still for me, okay?" Pretending Zim is awake and willing is getting him burning up.. He finally has him under him, after all these years..
The cold air has him hissing and his length twitching, but he knows what warmth is waiting for him. He shifts his hips, pressing the blunt head of his dick against the others dripping hole, moaning at just the soft kiss of it, eyes closing for a moment before he forced them back open to watch, he can't miss this... His own breath hitching in syncs with Zim's as he popped in just an inch, heavily breathing as he stares where they're connected.. The irkens soft little moan into the wet blanket near his mouth is so cute as Dib presses in deeper slowly, rocking his hips to help ease it in... He doesn't want to tear him, it'll be nice if this felt good for both of them..
"You're so soft Zim," He moans as he presses the rest of the way inside, the brown in his eyes *barely* a ring as he brushes his thumb against Zim's stretched hole, feeling it twitch as Zim whimpers. "And so so warm... Oh~ you feel like a dream." He lays down over the others smaller body, rocking and grinding his hips into the other, panting like a dog as he continued to whisper other dirty things of the same level... He can tell the other likes this, his body is just squeezing down on Dib's so tightly, but he's making room for it, taking him with no problem even with their size different.. It only proves he's right about Zim liking this as the irkens insides start to spasm and clench down in that cute little clench-release, clench-release, clench-release pattern.
"you're just perfect for me."
Dib happily hums as he moves his hips faster, shifting the others body by his movements, he won't last long, no not with how long he's been dreaming and waiting for this moment. He’s already feeling the burning in his gut build fast, and his thighs tremble as he pushes into the other over and over, a tingle in his spine making him sink down harder against the others body, pressing Zim a little harder into the bed. “Mmh.. Hope you're ready for this." He mumbles before slipping his hand under the others cheek, lifting his head and tilting it just enough to press his lips to his own, stealing *another thing* from the smaller being.
It was wet but sloppy with how gone Dib's brain is, the others mouth is warm and weird and it sends pleasurable shudders down Dib until his hips are pressing Zim's down as hard as he can into the bed, twitching and grinding as he moans brokenly as it all finally hits that point of release, spurt after spurt filling Zim until it was too much and started to leak and bubble out the sides around Dib's cock, making an even bigger mess of his bed than it already was... God his mattress is probably ruined, not to mention his pillow, but he could care less.
"You took it so well, so good for me Zim."
He kisses over the others face, making sure to press an extra long one to his lips, just in case he can't ever do this again... And thinking of that, he swipes his phone from the bedside table, flipping it open and opening the camera. These photos might just be for himself, but there's no way hes ever letting himself forget this. He made sure to snap probably too many, but he needed all the angles, of Zim's body, of his face, of the area between his legs, how its stretched around him, and how it drools Dib's cum as he pulls out, that one he might have made a video, His own groan followed by Zim's little moan as the head popped out living rent free in his mind now.
And maybe it's because he's young, or maybe it's because of how many years he's been chasing Zim, but that sight has him twitching again, trying to come back to life. He hums as he grips under the others armpits and gently turns him around. He... He should at least do it once where he can see the others face, right?
Dib really doesn't need much convincing before he's on top of the other again, leaned close to his face to watch every little twitch or scrunch as he pushed back inside, the aliens lips falling slightly more open around a groan. "yeah, does that feel good?" He asked even thought he knows the other can't hear, pressing kisses to his jaw and neck like if this was a normal thing to be doing on a Tuesday night. "Gonna make you feel so good.." His hips pick up speed slower this time, his own body over-sensitive to every little thrust and grind.
"Sweet fuck you feel so good.. mghh-" He buries his face into the others neck as his hands slip down to grab the irkens knees, tugging them up until they're on his shoulders. "You've always been so flexibility, I bet I could get you in some pretty crazy positions... such a good little irken for me." He keeps his hips at this medium pace, making sure to hit deep and grind on every push in. The other letting out a constant stream of little ah ah ah's near Dib's ear. It was nice to know he could make this special creature feel so good... And with that thought he shudders as he presses deep once more, his whole body feeling tingles and his vision blacking out as he loads Zim up even more, the smaller male whining softly as it seeps out of the edges, ruining Dib's bed even farther.
He kisses the other as he pulls out again, the creamy white liquid flooding out of the others hole mix with his own pink tinted arousal. "You can finish one last time for me, can't you?" Dib whispers close to the other as he uses his fingers to rub over the others slit before sliding up to stroke him, smirking as he catches one of the aliens antennas in his mouth again, biting gently as he watches the other mewl and shudder before cumming again, pink tinted semen coating Dib's hand as he worked the other through it and a little farther, staring intently at how his own sperm is being pushing out from all the clenching pulsing and clenching Zim's insides are doing.
"Good boy."
But all good things must come to an end, so once hes caught his breath, and taken even more photos and videos he gets up on what feels like shaky noodle legs, grabbing some towels and cleaning the other up. Humming between his supposed to be sweet words to the other, oh how good Zim did, laying there like a good boy for Dib. he kisses him again as he fixes his clothes, trying to make sure he remembers this taste before he remembers he can grab another vial and fill it with the irkens saliva, pressing a sweet chaste kiss to his lips once more afterwards.
Hours later when Zim finally woke up and screamed at the human like it was his fault he got an dart almost right in the ass, he didn't mention anything of the sort that Dib was worried he might somehow know. Other than the irken being sore, which he blamed on the tranquilizer and Dib's bed he didn't seem to know what even happened to him while he was out. And Dib just pouted and acted like he was upset at the fact that he couldn't do anything with his one chance because of the damn security guard as the irken put back on his disguise and used his PAK legs to climb out of the window and back up to his own dorm, carefully watching out for said security this time.