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Just A Quick One	By : LiesDee Category: +G through L > Invader Zim > AU/AR-Alternate Universe-Alternate Reality Views: 3671 -:- Recommendations : 0 -:- Currently Reading : 0
Disclaimer: I do not own Invader Zim, nor any of the characters from it. I do not make any money from the writing of this story.

Chapter List
- 1-Just A Quick One
- 1
Disclaimer: Invader Zim was created by Jhonen Vasquez and Nickelodeon holds the copyright. They would not approve of this fanfictioney endeavor even though I swear I'm not doing it for profit.
Just A Quick One
Dib caught Pellers in the act.
All of the cameras had been turned off, but Dib had come in late to check over the day’s numbers.
Zim was still unconscious from the last dose of sedative. Most of the lights in the observation chamber had been shut off – only one dim light was trained on the former invader, strapped down spread-eagle to the upright table. The lab technician still had his lab coat on, but the pistoning motion of his hips gave him up.
Shocked speechless, Dib could do nothing but stare while Pellers rutted away. He was fucking Zim.
When Pellers finally finished with a loud groan and pulled out, he looked around nervously, but didn’t see Dib through the thick glass of the observation chamber. Wiping his semen off the table with a cloth, he pushed a slender instrument up inside Zim – Dib recognized it to be one of the bio-eradicators from the experiment lab, probably modified to cleanse Zim of the sperm he’d deposited.
Zim stayed unconscious.
Dib let Pellers finish his business and go. He couldn’t think of anything to do but go to the bathroom and pull out his own aching member, pumping away until he spurted his cum against the stall door.
****
Dib didn’t report Pellers. He approached the man casually and mentioned that if he ever ‘tampered’ with their specimen even one more time, he would never work in xenobiology – or any other scientific field – again.
Pellers grinned nervously and began to sweat. Stuttering, he apologized. It was just a bit of a quick one. He said. It won’t happen again.
Dib nodded and let him go.
****
For the next few weeks every time Dib passed Zim he got a raging erection. He spent a lot of time in the bathroom – he felt like he was fourteen again or something.
He couldn’t stop himself from staring at the slit between Zim’s legs.
He’d admit, he’d been curious before, but never so tempted.
Just a quick one. He thought. What would it hurt?
Zim wasn’t even awake – he’d been kept under constant sedation for months now. He would never know. Nobody would ever know.
****
Dib turned the cameras off one night.
He had to adjust the table so that it sat at the just the right height and angle.
Nervously looking around, he opened his pants and took out his swollen, dripping member.
The slitted opening in between Zim’s legs was so small, but proved surprisingly elastic. Dib nudged his cock against it a few times, smearing it with precum. When he finally gathered the courage to push just a little harder, he found the head of his penis popped inside quite easily.
Slowly, Dib kept pushing his cock deeper inside, relishing the feeling of the tight skin closing around him at Zim’s opening. He didn’t know if Zim would be able to take his whole member. It turned out that he could.
When he was fully seated inside of Zim, he took a deep breathe and began to pull out. The feeling was so delicious that accidentally pulled out all the way. He had to put it inside of Zim again, and he decided that he really enjoyed the satisfying ‘pop’ as he first pushed his penis inside of Zim. For few minutes he explored this, leisurely pushing inside and pulling out again, entering Zim anew each time.
Dib tried to keep it steady but his pace kept getting a bit faster. He had to keep his hand on his penis to keep it in place for the re-entry he was so fond of. He wasn’t even pushing in all the way now – he would thrust the tip of his penis in just enough to jerk it back out again. He was getting pretty good at that – in out, in out, in out. He could do it at a frantic pace while he stroked the shaft of his cock with the rest of his hand. Intermittently he would take a second or two to just rub the head of his cock against Zim’s opening, smearing his pre-cum around generously.
Finally when Dib felt he was getting close, he was able to shove his cock inside Zim one last time, pumping his semen all the way up Zim’s tight sheath. He could feel the warm liquid around his cock as he held it there for a moment or two, then pulled it out for the last time.
Dib wiped off the table much as Pellers had done, being careful to catch the sperm as it seeped down Zim’s legs. He even used the same long, thin instrument to clean out Zim’s insides. He couldn’t help but play a bit – pushing the instrument in and out of Zim’s opening for his own amusement.
Out of curiosity, Dib put two fingers inside of Zim, wanting seeing how wide Zim could stretch. Pretty wide, it seemed. And yet it still retained that wonderful elasticity that brought it to a tight hole.
Dib left the lab unhurriedly. He had the passkey to turn off the cameras and lock all the doors.
There were ten hours each night when this particular lab was completely unsupervised.
Time for plenty of little quick ones.
The End
- 1
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Just A Quick One