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Sleep invasion	By : Fanfictionfan360 Category: +G through L > Invader Zim > Het- Male/Female Views: 4546 -:- Recommendations : 0 -:- Currently Reading : 1
Disclaimer: I do not own Invader Zim or its characters, Jhonen Vasquez owns that right, I am not making any profit for writing this

Chapter List
- 1-Sleep invasion
- 1
Sleep invasion
Grimacing in her sleep Gaz turned onto her side as she felt a slight cold draft run along her bare back making her shudder slightly rousing her from her rest, thinking it was just her bedroom door opening her grimace turned into a cold scowl “Dib is swear if that’s you I’m going to…”
“You’ve grown up well Little Gaz”
Quickly turning over onto her back Gaz grabbed her bed sheets pulling them from her waist and up to her chest to cove her naked form as she caught sight of Zim looming over her, his bright crimson eyes seeming to glow in the darkness as his body cast a shadow over hers in the moonlight “Zim?! What the fuck are you doing in my room?!” she snapped glaring daggers up at the Alien as her cheeks flushed
Over the years since Zim had first landed on earth both he and Gaz had matured a lot physically, she wasn’t sure whether it was the pollution in the air or if his species just went through a growth spurt sometimes or if he had done it to himself to keep up his pathetic disguise but Zim had grown from his original stumpy four foot height to a fairly lofty six foot and his once scrawny body had filled out nicely as well becoming fairly broad shouldered with a fair amount of lean muscle covering his bones becoming something that Gaz found rather attractive, not that she’d ever admit it though
Gaz on the other hand had stared fairly short through the years growing only a foot taller by the time she had hit age eighteen, despite remaining short her body had filled out a lot, going from flat to an amazing J cup bust making every top she wore revealing no matter how much skin it was made to cover, along with her chest her hips and ass had expanded to the point that she drew looks from almost every man that laid eyes on her, something she used to despise but couldn’t help warming up to as she grew to love the attention
Merely grinning broadly at her question instead of answering her Zim grabbed hold of her bedsheets ripping them from her body making her huge tits bounce “Zim!” the purple haired Goth snapped clenching her fist to slug him only to have both wrists pinned down by two of the metallic legs the Irken stored in his Pak “Zim I swear if you don’t like me go I’ll make you wish you were never born!”
“Irken Invaders are not born, they are made Little Gaz” Zim corrected her as he drew the other two metal legs from his Pak using them to pin Gaz’s legs down by her ankles to further cease her struggles
Arching her back as she tried to move her arms and legs Gaz suddenly stopped when she realized something, she was getting wet, looking between her legs she gritted her teeth as she saw her inner thighs glistening in the moonlight whilst her slit began to ache for stimulation “looks like you’re ready for me” the Alien grinned to which Gaz’s attention was drawn from between her legs to between his legs, her amber eyes going from slits to wide open as she realized that he was naked as well and that he had a fucking monster between his legs
Opening her mouth to try to say something Gaz just garbled her speech as she continued to stare in shock at Zim’s massive cock, easily sixteen inches in length, eighteen at a stretch with a girth that rivalled her arm making her heart race and her cunt leak even more, too shocked to resist as Zim spread her legs wider she could only watch as he guided his erection to her dripping cunt before driving every inch inside of her effortlessly
“FUCK!!!!” she shrieked as she felt herself getting filled to the brim in one brutal motion, her groin bulging out around Zim’s girth as he grunted with pleasure above her “Zim you fucker! You’re so fucking big!” she cried out as the Irken started to take deep rough thrusts into her, making her entire body buck and jerk under him as well as making her breasts bounce hard enough to nearly hit her in the face
Writhing beneath the Irken as he steadily took faster thrusts into her with every passing second Gaz thrashed her head from side to side as sheer masochistic pleasure ran through her body, this couldn’t be happening, Zim had never even laid a pleasant eye on her and yet there he was fucking her brains out, she had to admit that she had wondered about certain parts of Irken anatomy as she and Zim grew up and some thoughts did linger one what he had for genitalia but she had never expected it to be so humanlike or for it to fit so perfectly inside of her
Feeling that Gaz would no longer struggle Zim released his hold on her ankles to which the Gothic girl immediately raised her legs wrapping them tight around his waist forcing his monster cock deeper into her, hissing with pleasure Zim grinned down her at her as her heels dug into her lower back “not so resistant now are you Little Gaz?”
“Shut up! If you’re gonna fuck me just fuck me!” Gaz snapped back straining her wrists hard enough to finally snap the legs holding them down, with her hands now free Gaz grabbed hold of her bouncing breasts squeezing and kneading them hard as she felt her lower abdomen beginning to tighten “fuck me harder! Make me fucking cum!”
Arching his back Zim pounded into Gaz harder and deeper, slamming deeper into her womb making her stomach bulge out with every thrust soon having her body exploding in orgasm, her tight cunt getting even tighter as she thrashed in climax trapping Zim inside of her as well as setting off his release as well, the Irken shuddering with pleasure as he unloaded his thick florescent green seed deep into the Goth girls spasming pussy
Panting heavily Zim then slowly pulled out of her admiring how her body twitched in her post orgasm afterglow “you’re mine now Little Gaz, your body belongs to me now” he hissed running his clawed fingers down her front before grunting when Gaz suddenly sprung to life, grabbing him and flipping him over shoving him down onto his back
“You don’t own shit” Gaz asserted dragging hold of his huge cock rubbing it against her outstretched tongue making the Irken shudder with pleasure “this dick is fucking mine!” she added as she started to run her tongue along every thick inch of his cock, finding his skin to have a sweeter almost tangy taste to it compared to human guys much heavier muskier flavours making her taste buds tingle as she pressed her tongue against the base of it
Taking a few moments longer to relish his taste Gaz then moved her head to the head of his cock before taking it into her mouth, pushing herself down more than halfway down his monster cock moaning loudly as it filled her throat to its very limit, making it bulge out obscenely as she cupped her huge breasts wrapping them around what was left of Zim’s dick engulfing his entire length in her throat and cleavage
As Gaz began to suck hard Zim arched his back with pleasure at the purple haired girl’s obvious skill proving that some of the reasons at the Collige were true, digging his claws into the bedsheets Zim let his head roll back as Gaz started to pump both her head and tits along his cock sucking wet and sloppy along him coating his entire cock in his drool making him thankful that his constant bathing in paste when he first got to Earth had resulted in a water immunity
Smirking as Zim was rendered speechless by her great oral skill Gaz made a mental note of doing so whenever she wanted the Alien to just shut up in future, pursing her lips tighter Gaz then showed off just how strong her neck was by bobbing her head even faster, her hair bouncing as she propelled her mouth and throat furiously along his cock sucking harder and louder as she pumped her tits harder in time with her head
Soon enough Zim’s cock started to throb hard in the Goth girls throat, his thick florescent green precum pouring down her neck as she sucked harder and faster, her cheeks hollowing out as she found that she loved the taste of his precum, salty like a humans but with a faint tang of lime to it “that’s it green boy fucking cum for me, let me taste it” she mentally urged him pressing her tits harder around his cock to which she was rewarded by the Irken’s climax
Moving her hands from her breasts to Zim’s lower back as he arched his back Gaz forced herself to throat him even deeper, starting to gag as she hungrily swallowed his seed “fuck he cums like a firehose! Looks like I’ve found my new fuck buddy” she purred internally as his release lasted for several minutes making her feel blissfully full of his cum
When Zim’s release eventually ended Gaz continued to suck on him for a few minutes longer wanting to enjoy his tangy flavour for as long as possible before finally pulling her mouth and throat off of him “still want more green boy?” she tittered slapping his still rock hard cock against her outstretched tongue before beating her face with it “you’re lucky I love huge cocks cos this is the biggest I’ve ever fucking taken, I’ve got to see if this this will fit in my ass”
As she moved to straddle his waist Zim just grinned lecherously reclining back further on the bed as the purple haired girl bent forward and reached back to guide his huge cock head to her tightest hole “come on….come on….fucking get in there….” she hissed pushing her ass back against his cock hard before letting out a sigh of almost relief when his cock head finally pushed into her ass “fuck that’s the stuff, all the way in” she moaned as she then pushed her ass nearly all the way down his monster cock
Balancing her hands on the Alien’s chest and pressing her feet to the mattress Gaz then started to bounce her huge ass along his length, her ass cheeks rippling and bouncing hard as she propelled herself along Zim’s cock “fuck yeah that’s good, you like that fat ass on your dick?” she panted as she slammed down on him harder making them both bounce and jerk on the mattress “god you’re so fucking big!”
Feeling jolts of pure pleasure racing up her spine every time she slammed her ass down on his cock Gaz felt like the entire world around her was melting, the walls of her bedroom seeming to seep away as the moonlight faded leaving her and Zim in pure darkness as she rode him harder and harder “I’m cumming! I’m fucking cumming!” she then screamed throwing her head back as her orgasm tore through her
And then she woke up
Sitting bolt upright in her bed Gaz panted heavily, her skin glistening with sweat in the moonlight from her post wet dream climax which had left her sheets completely soaked between her waist, glancing around the room to find herself completely alone further proving that the experience was just a dream Gaz let out a loud growl of annoyance
Tossing the bed sheets off of herself Gaz jumped out of bed grabbing her car keys from her bedside table before storming out of her room and down the stairs to head to her car not even bothering to put clothes on, after a dream like that she had to at least check if it had any truth to it and even if Zim wasn’t as hung as he was in her dream she’d at least have the satisfaction of finishing what her subconscious had started
Plus the look on Dib’s face when he found out that she had fucked Zim would be a nice little bonus as well
Thank you for reading, hope you enjoyed it
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Sleep invasion