Parasitic Intruder

Dan's PT has transformed into a terrifying parasite host

  • Score 8.4 (1 votes)
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  • 1585 Words
  • 7 Min Read

Monster PT

Four arms grabbed my sides, lifting me off the ground with ease.

I panicked, kicking my legs and trying to wriggle out of my PT’s grasp but it was no use, his new infected form possessed endless strength, holding me in the air like I weighed nothing. His arms slowly turned me around until I was facing him, I don’t know what was scarier, his face full of rage and lust or the throbbing 20 inch cock, sticking up in the air like a spike, waiting to run me through.

I tried to reason with him, beg him for forgiveness and mercy but my words fell on deaf ears as two of his enormous arms let go of my arms and grabbed onto my legs and pulled them apart, exposing my glistening pussy and quivering asshole to him. He lifted me up, pulling me legs higher than his shoulders, positioning me perfectly above his cock.

This is when I noticed he had lifted me high enough that instead of my vagina, my asshole was the opening hanging above his cock. I cried out, begging him to use my pussy instead, hoping that the natural lubrication would provide some comfort against his monster intruding but I felt him swing his arms up and then down swiftly, taking me down with them and straight onto his cock.

I only got about 9 inches inside of me before the walls of my asshole tried to prevent him from going any further. My screams did nothing to slow him down as he pulled harder and harder, forcing me further and further down onto him. Inch by inch, he slowly filled me up as I felt his cock contorting and rearranging my insides slowly, ripping me open to the point my screams were no longer audible, reaching a pitch too high for anyone’s ears.

Everything inside and outside of me hurt, my sensitive pussy quaking and leaking everywhere as I got almost all the way down his cock, my knees bent up to my chest as I was now face-to-face with the behemoth raping my insides. He suddenly stopped pulling me down his cock, allowing me to rest with 17 inches inside of me. 

I could feel his cock pulsing inside of me, heat radiating throughout my entire body as he moved the hands holding my arms down to my wrists, pulling them back behind me as the hands holding my legs pulled them even further apart, presenting my entire naked body for him.

His mouth opened and inside I saw what the last parasite had done to his body, instead of a tongue, he had three alien-looking parasite heads that slowly snaked out of his mouth. They crawled their way towards my body before ZIPPING forward with a flash, two of the heads latching onto my nipples, the third one latching onto my clitoris as they bit down viciously, attaching themselves to my sensitive spots.

I whimpered, my voice worn out from screaming as I felt the parasite heads begin to spread warmth into the areas they had bitten on. Before I could figure out what they were doing, he began moving me again, slamming the last 3 inches into my asshole, bottoming out inside me as his infested balls slammed against my back.

I was full in every sense of the word, it felt like if he pissed it would shoot out of my mouth like one of those decorative fountains, his throbbing cock pounding with my heartbeat as he slowly pushed me away from him, sliding his cock back out of me at a glacial pace but only about 10 inches off until he SLAMMED me back down to the bottom.

He kept up that tempo, pistoning in and out of me rapidly but only ever drawing me about halfway of his cock, the pain of his monster tearing me up eventually getting replaced with overwhelming pleasure as my head rolled back. I felt my orgasm building up inside of me as the alien heads applied more pressure, biting down harder on my nipples and clit.

I wasn’t sure if it was possible for my asshole to go back to a normal size after having something so large inside of it but that didn’t matter to my PT, as he drilled harder and harder into me. His grunts only added to the pleasure as they became more animalistic in nature, his sole purpose becoming to breed me and fill me full of his spunk.

Finally, I hit the peak of my pleasure as my orgasm burst through, my asshole weakly clenching around his cock as my hips bucked wildly, my whole body shaking wildly before going limp. If I wasn’t being suspended in the air by a monster, I would have surely collapsed on the floor instead. 

My assaulter took this as a sign I wouldn’t be putting up anymore resistance and let go of my hands and legs, allowing me to be held up by nothing but his rock hard cock. I felt his alien tongue heads detach from me, drawing back into his mouth as I tried to lift my head up to see what had happened to my body.

I was greeted by two mounds of flesh that had not been there prior to this morning. The alien heads were designed to make the victim more feminine and had bestowed upon me a pair of breasts. They weren’t very big, maybe an A or B-cup at most but they did an excellent job at making me look more female and especially more breedable. The nipples were especially perky too, but it made me wonder what the third head had done to my body as I couldn’t feel any difference in my vagina.

I lifted my head further and was able to peer down and watch in horror as my PT took his massive hand and brought it towards my other opening, slowly inserting his whole fist into my vag as it stretched to accommodate him as his other hand held me steady, I felt his hand hit my cervix, before he slid it back out until just his fingertips were inside of me and then thrusting his hand back into me. His hand was so large, the pressure against my walls was also causing my whole body to shift up and down on his cock, he was double penetrating me just by himself.

My body began acting on it’s own, my legs wrapping around his midsection to get better balance, which allowed his other hand freedom from keeping me balanced on his cock. He chose to move his rough hand up to my newfound breasts and roughly grope them, squeezing them and pinching my sensitive nipples as shocks were sent through my spine. 

How full I felt was incredibly similar to the first time the Intruder broke into my apartment and turned me into a breeding ground except this time, it was just due to the sheer size of my attacker.

This reminded me that my PT had yet to climax, his throbbing cock reminding me of this fact as it hit deep within my guts, preparing me to be inflated with all the stickiness he had to offer. 

My second climax came first though, the sensation of his thick hand combined with the arousing nipple play caused me to once again shudder around his body, this time I felt a little something extra leak out my pussy. If I came anymore, I would be squirting all over the place, which apparently is exactly what he wanted as he picked up the pace with his hand, fucking me even harder on his appendages.

His grunts turned to roars as he brought his hand down from my chest and began furiously rubbing my clit, his other hand extracting out of my pussy as I moaned loudly, my third orgasm hitting me like a train as I begun squirting everywhere. Squirt hit my PT’s chest and drippled down, spraying against it as he kept rubbing, forcing more and more out of me.

His alien-tongue had turned me into a squirting machine, making my orgasm feel like it would never end as I saw stars in my vision. My squirt-fest was soon joined by my PT’s deep monstrous grunt as he begun to unload inside of me, cannonfire of semen shot into my insides as I felt his cock pulse bigger and harder.

My orgasm finished as my PT took my arms and legs back into his grasp, pulling me slowly off his cock as he kept pumping inside of me, my stomach growing larger and larger by the second. I was beginning to get accustomed to the sensation of feeling inflated, not something I would have wanted to happen but alas.

When I reached the tip of his penis, he didn’t leave me there to fill me up entirely, instead, after I was adequately rotund, he pulled me off his dick and dropped me to the floor, covering me in his juices inside and out.

My body failed me entirely, leaving me motionless as my PT finished off his orgasm, reverting back to his normal self and once again, abandoning me on the floor as I passed out from the day’s events…


If you enjoyed the story and would like to see more things happen to Dan, let me know and I will happily write a future chapter about it! Thanks for reading! <3


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