nightfall

Yor was ecstatic with her newfound desire to spread the Symbiote, within seconds she was wearing a latex version of her uniform, she was wandering the dark alleys of Berlint looking for hosts for the Symbiote, in some alleys Yor left some small parts of Symbiote that were too small to **** bonding but large enough to hide in a piece of clothing and infect at an opportune moment.

After a few hours of searching in the cold dawn Yor finally found the target she was looking for, there was a man sneaking in the alleys as if he didn't want to be seen, he had a large physical size, about 1.80 tall and 90 kg, Yor he approached without making any noise and began to feel the man's muscular arm while saying: "Wanna have some fun, Big Boy?"

"Maybe another day, but I don't have time for your type today" replied the man.

"Don't worry big boy, We have all the time in the world baby" Yor said in the Symbiote dual voice.

With a quick movement she pulled the strong man and threw him against the ground, "WHAT TH..." the man tried to scream but he was prevented by a black web that muffled his mouth, before he could get up Yor had already mounted the man's waist, the man tried to punch Yor but with Yor's superhuman strength together with the strength of the Symbiote the punch was easily parried, "So you are wild big boy, WE LIKE IT" said Yor together with the Symbiote.

Yor was mounted on the man's waist but she felt that the man's penis was not hard enough, she was impatient so to speed up the processes she stuck 2 fingers in the man's neck, in the carotid vein injecting a small amount of the Symbiote into the circulatory system of the man, in a matter of seconds the man began to struggle until he became ****, soon after the man's penis became rock hard, Yor's uniform melted as the black goo covered her skin, with her symbiotic suit she was ready to fuck.

Several little tendrills emerged from Yor's butt and legs then started covering the man's waists, the tendrills dissolved some parts of the man's clothes while covered his skin making his cock three times bigger, she could clearly see his giant venomous cock and she was about to start, Yor started bouncing on the erect cock, she could feel the cock sliding in her pussy that was lubrificated by the Symbiote, suddenly the symbiote made some tendrills on her breasts making them penetrate her nipples, filling her breasts with more Symbiote, now they were bigger and even more sensitive, as Yor played with her bigger boobs while she was bouncing the man **** got horny and started cumming, she could feel the hot viscous liquid spreading on her vagina but the Symbiote wouldn't lose this opportunity to evolve, the Symbiote started absorving his sperm, the sperm became a white spider Symbol on her breasts and back while some details made of white tendrills emerged on her pussy, butt, legs and shoulders.

Yor could feel that her Symbiote had evolved, she was now able to copy some skills and characteristics of other people she just needed to have sex with them for some minutes to copy them, with this new skill Yor started to lick his big black Symbiotic cock with her long tongue making him cumming non-stop, his sperm now was corrupted by the Symbiote, she liked it and she wanted to taste it, she started sucking his cock his sperm was delicious and addictive but instead of swallow it she let the Symbiote make the work, the Symbiote absorbed his cum and moved it to her vagina, his sperm was infested with Symbiote spores, and as the new queen of the Symbiotes Yor needed to found someone to give a birth to all this new Symbiotes, for her lucky she already has a target, using the man's memories she discovered that he was an informant of a woman with short white hair and her codename was nightfall.

Yor went to the meeting point, she got there 10 minutes early time enough to prepare a trap and hide in the shadows, Yor knew that this woman would probably be an spy due her codename and the meeting point so she had only one chance, the meeting point was a wooden bench right in front of an alley, after some seconds analysing the place she came with a plan A and a plan B, plan A was to put a Symbiote under the bench that would hold her on the bench time enough to Yor muffle her screams. The plan B would start if she noted the Symbiote on the bench and tried to run then two Symbiotes on the roof of the building would pull her and infect her on the air.

Yor didn't lose any time and planted the Symbiotes on the right place then climmbed to the roof of a building to wait her target, on the exactly time combined Yor could see someone using a hood approaching to the bench, she couldn't recognize if was a man or an woman but it was looking around suspiciously so probably was nightfall.

Fiona POV: she was on Berlint searching for a possibly new bio-weapon called Symbiote she didn't know exactly what was that but she knew that it could control the mind of the humans and on this night she would meet her informant to take an map of the laboratory where this bio-weapon was beeing developed. She was almost on the meeting point but she couldn't see her informant anywhere so she decided to sit on the bench to wait, it was a cold night and foggy, she took her notepad to read some of the informations that she already got, she was concentrated when she started to feel a warm feeling on her butt, she got up confused just to look at the bench and see the black goo covering the bench.

"This is the bio-weapon! But how did they've discovered me?!" She thought when she noted that she still was feeling something warm on her butt, she knew what was that so she started to pull her pants down when suddenly she felt something on her shoulders, she was quickly pulled up by two big tentacles on her shoulders, the tentacles pulled her 6 meters high while dissolved her clothes leaving her only underwear, she was now helpless, she felt the liquid spreading some tendrills over her skin, it was like she was a fly on a spider trap.

Fiona couldn't risk scream or fall from that height so she needed to wait for an opportunity but before she could think on a plan she felt a little tentacle squeezing on her pantie and penetrating her ass "Hey get out of there monster!" Fiona said as dhe tried to escape. "Shut up stupid bitch, you're mind is going to break" A monstruous voice said inside her head when a web was shoot on her mouth.

"hmmm! HMMM!" Fiona tried to escape but she wasn't strong enough to free herself from the thin tendrils that at this point had already surrounded her body, the tendrils slowly melted her underwear showing her pussy and her pink nipples, suddenly she felt a strange sensation between her legs, she felt a cylindric form made of a sticky material, she tried to look down but the tendrils were holding her head looking forward, she got surprised when she felt the cylindric form rubbing on her pussy and crotch, she was ****, she didn't know what was about to happen but before she could speculate what the Symbiote would do she felt the web on her mouth spreading over her face, after some seconds the Symbiote over her face made a big mouth full of sharpen tooths and a long red tongue, she couldn't control the tongue but she could feel every inch, suddenly the tendrils spread her arms and legs as the Symbiote slowly covered her hands and feet making sharpen claws, her new long tongue started licking her boobs making her leave a monstrous moan, suddenly the cylindric form between her legs became a long symbiotic cock that slowly approached her pussy like a snake ready to attack, in a single fast movement the tentacle-cock penetrated her pussy making her leave another montruous moan as the Symbiote over her face spread until it reached her ears.

As the tendrils explored her ass and inner organs another two tendrils invaded her ears until they reached her brain, after some seconds the Symbiote had total control over her brain chemical, her eyes suddenly rolled back and the Symbiote fully covered her face making two white tear-shaped eyes, Fione was now under the control of the Symbiote and she wanted to finish her bonding process, using her symbiotic claws she spread the symbiote over her body, from the tentacles that held her on the air several cock-shaped tentacles emerged and shot themselves toward her body, in a matter of seconds her body was surrounded by tentacles that coiled themselves around her curves while others penetrated her from everywhere, from all her holes and tits several litters of Symbiotic cum fell on the floor then slipped to the nearest buildings and the sewers.

Fiona was fully corrupted by the Symbiote and using her new powers she climbed to the top of the building to see her queen who was already wet waiting her new servant.

"So you're our new sister, our family it's still little but we know that you are gonna be an important part of our mission" Said Yor as Fiona lay on the floor showing her corrupted pussy,"Yes we are going to help you our queen" said Fiona.

"I knew it you are really a good girl" Yor said

"Wait for me, my queen" Fiona replied as she spread her legs exposing her asshole, Yor crawled towards Fiona's ass and spread her long tongue, "Oh! This is the best" Yor moaned as Fiona's asshole opened for her, she started licking her ass hole while Fiona's tongue licked her pussy. Fiona felt great pleasure as Yor's tongue penetrated her asshole and her tongue was inserted in her pussy, Yor had a unique tongue that could penetrate into any hole with ease, Fiona was getting addicted to her tongue, finally Yor started to lick her ass hole in order to clean it, Fiona was in ecstasy as Yor kept pleasuring her asshole and vagina with her tongue.

Yor stopped and crawled away until she had positioned herself behind Fiona again, without wasting time Yor mounted Fiona's ass, she felt the huge cock of Yor pushing itself into her anus, Fiona was moaning as the symbiotic cock pushed its way into her ass.

while both women were fucking each other they heard a strange noise behind them, it was Fiona's informant that now was almost 3 meters tall and a huge symbiotic cock between his legs, both women approached him starring his huge cock while his cock became several tentacles cock-shaped, like snakes they surrounded their prey coiling themselves around their breaths, butt, and curves, in a matter of seconds the tentacles penetrated all their holes their wet pussys started to produce several litters of new Symbiotes as the tentacles filled their inner organs by their ass and nipples, the new Symbiotes were making a large puddle on their feets that became a Symbiote plot after some minutes.
Note: the Symbiote plot is a large amount of Symbiote in one place that slowly spread over the place but without call attention.