Disclaimer: All rights belong to Marvel and DC comics.

Warning: contains gore, nudity, sexual themes and other themes that may disturb some.

Symbiotic Relationship

Chapter 1

Wayne manor

The night sky was always beautiful on Wayne manor, full of stars that shone like fireflies but undoubtful more beautiful.

On this night the Wayne satellite that always kept watch over the manor fail to notice something approach the mansion from the sky, maybe it was the speed the object flew, maybe it was the material it was made, but it didn't matter because whatever the reason, it failed, and to a man like Bruce Wayne one failure is too much. This failure would never occur again because when the owner of the satellite notices, he will fix it, fortunately for him, this same event would never happen again.

The object that hits the ground is nothing but a red meteorite that would stay there until morning, or so it would seem.


Batcave

Barbara Gordon, former batgirl was standing in front of her old batgirl costume, she misses those good old days when she grappled through the city beating bad guys and protecting Gotham's citizens, when her hand touches the glass, she gives a deep and sad sigh, she still had nightmares about that night six months ago, when the Joker shot her and confined her to a wheelchair for the rest of her life.

"Are you okay Miss Barbara." Barbara turns her face to look at the polite butler that had been her friend for many years now, Alfred Pennyworth. The old butler was always generous and friendly with her, with time she started to consider him a father figure, and for the look of it he didn't seem to be bothered with it.

"I'm okay Alfred, just feeling nostalgic." She said trying to hide the sadness on her voice.

Sadness wasn't the only thing Barbara was feeling, anger was also present, anger at herself for letting the Joker paralyzed her, anger at Batman for failing to stop him before it happened, and angry at Dick for leaving her when she needed him the most.

Barbara knew she was being unfair to Bruce and Dick, the clown was the only one who deserved her rage but she couldn't stop it and it made her feel guilty for having such feelings. Was she becoming crazy or just being normal? She hope to never make that question again nor had it answered.

"I know it's hard Miss Barbara." Said Alfred putting his hand on her shoulder while giving an understanding nod looking at her in the eyes. "I wish I could do more than giving comfort words-".

"It's okay Alfred." She gives him a smile, a genuine one.


Outside Wayne manor

After being exposed to oxygen for some time the meteorite cracks open and from inside of it a red goo comes out of it.

Somehow this goo was alive for it was moving by itself, a part of it get up like a snake's head and appears to be looking around.

Once it found some source of lights the goo crawls towards it making a sound like flesh being teared apart with a shredder mixed with the sound of leaves and grass being smash while it crawls over them.

Once the goo arrives at the source of the light it stops in front of a hard structure, it thinks it might be useless, but just like the grass and leaves it touches the object and starts to assimilate the material, the material is wood, like the grass and leaves is organic and the goo has no problem to assimilate it and replicate if it wanted or needed.

The goo starts to hear noises coming from the other side of the wood object, it doesn't understand what the noises mean but notices they are getting close so it hides afraid of being seen.

It hears once again the noises after the wood object is moved, but this time the sound is louder, once more a part of it gets up like a snake and looks at the source of the noises, they were two.

The first noise is being made by a strange creature but it look old given the smell it gives, the goo then turn its attention to the other source, this one smells young, the voice is also stronger and the being appears to be carried by something the goo doesn't recognize but it lets the goo knows that it is a newborn for it still can't walk by itself.

A young, strong newborn, the goo found its new host and wouldn't let it slide, it silently moves towards its target with utmost care trying to not be noticed by the older organic, it didn't want its host to be old, it wanted the young and fresh.

It makes its jump towards the young one but it failed to touch her, the goo ends up touching the material thar was carrying the infant, for a moment it wants to merge immediately with its new host but stops, it decides to not do it yet and wait until the host is alone so none can stop the merge between them when the time comes.

The goo then notices the material which is carrying the infant it will soon bond with, it is different than the leaves, grass and wood, it is not organic, it is metal but just like the wood the goo could assimilate, it would take more time since it was metal and not organic but the goo was patient, when the new host saw what it could do, the host would never want to leave the goo, they would bond and become inseparable.


Barbara is outside the manor with Alfred, she talks about the time Dick got caught up by the Riddler and suspended by a rope above a tank of acid, Alfred smiles and says that once Master Bruce was facing the same situation but instead of the Riddler it was the Joker and instead of a tank of acid it was a water tank full of electric eels.

Barbara feels her wheelchair moves a little and hears a noise and asks Alfred if he had heard but he responds in the negative. She looks at it to see anything strange in particular but found nothing so decided to leave the matter alone.

"Thank you for your time Alfred, I know you must been busy." Barbara bows her head to the butler hoping he accepts her gratitude.

"Nonsense Miss Barbara. You are always welcome here." Alfred smiles to her and grabs the handle of her wheelchair in the hopes she lets him take her to the taxi that arrived to take her home. "May I?".

"Of course." Barbara accepts the offer even when her pride tells her to refuse, Alfred was a good friend, she would never let pride and ego ruin their friendship, the only real reason for her wanting to refuse was because she wanted to take the longest time possible to arrive at home.

Barbara's father was Jim Gordon, commissioner of the Gotham City Police Department, and as such he still blames himself as much as she does for what happened to her, saying that it was his job to stop the Joker before he could ever act, and seeing her father doing this to himself hurts her more than the pain of the shot she took. The only advantage Barbara could take was that in his grief she took the opportunity to ask her father to stop smoking. He stopped, but even now she felt a little of guilty for using her father's grief to make him stop doing the only thing that probably could calm himself during tense situations.

After getting in the taxi Barbara gives Alfred a farewell and tells the driver the address to her residence.


Barbara enters her house and sees her father, sitting in front of a desk table in the living room looking at police files which were probably taken from the GCPD archives. These files though were strange, she knew a lot of Gotham's criminals because of her days as batgirl, but the one her father was seeing was new to her.

"Hi father." A smile appears on her face when the commissioner of police drops his coffee and stumbles on his own words in an attempt to greet his daughter.

"Oh! Barbara, sorry for this, I was so focused on these files I didn't see you come in." He cleans himself with a piece of cloth while putting the papers together. "There was going to be a transfer of prisoner to Blackgate but someone pulled some strings and now the prisoner is going to Arkham Asylum instead.".

"Who is the lucky-slash-unlucky one." She asks joking trying to make the frown of her father disappear.

"Cletus Kasady." His voice sounded like he drunk poison or just spelling the name tasted like it. "From the files I could swore the maniac is the long, lost, twin brother of the damn clown.".

Barbara's eyes widened for a moment before she collected herself, she picked one page of the files and read it, it wasn't long before her eyes widened again. "Twelve confirmed murderers, over fifty bodies disappeared, suspect of cannibalism, rape, torture and necrophilia.".

"As if this city didn't have enough freaks." Gordon gives his daughter another paper of the files, this one with a psychological profile. "Sadism, masochism, insanity, but also self-aware of his own actions.".

"I miss the time when criminals were one-dimensional idiots and their only interest were robbing money and jewels, like that guy Herman Schultz." Barbara sighs in frustration, she knows the headache her father will have in the future because of this new psycho who would definitely escape Arkham sooner or later.

Arkham Asylum was full of a madness, but madness in another level, Barbara believes that the only reason it wasn't closes yet was because so many different types crazies gave the place more government funding and even with one person of the staff probably being killed once in a week the payment and chance to become famous because of the patients appeared acceptable enough for new doctors to join the staff. The same couldn't be said about the Security staff.

The former batgirl rubs where she's been shot and remembers the laugh of the responsible. Her imagination flew towards that moment, the door opens and on the other side stood the clown, dressed like he was going to a vacation, she was rusty, on her batgirl days she would've reacted by punching and knocking him out but instead the world was slow in that moment. A gun slowly approaches her and with a movement of her eyes to see where it was being pointed a loud bang is heard, and then, everything goes dark.

"Barbara. Barbara!" She comes back to the present after hearing her father call for her not noticing the small tear dropping from her left eye and look at his face while adjusting her glasses and cleaning her eyes. "It's late sweetie, and if I'm not mistaken, tomorrow starts the new school year, shouldn't you be preparing your material?".

Barbara smiles to her father and wishes him a good night who wishes her the same while going back to his files and putting another cup of coffee for himself.

Entering her room Barbara notices the space available now and it ended up making her forget to turn the lights on, it's been six months since her incident and the vision of her old decoration still appeared in her mind from time to time. Gym equipment were all over the place so she could always be on top shape, when she wasn't studying or fighting crimes, she was working out to never fall behind Bruce and Dick, now that she no longer had her legs movement, she gave her equipment away to one of her friends in school, she always though the poor creature could use some exercise.

Barbara starts to take her shirt off and hears a sound coming from her wheelchair, she takes a look around the wheels and where she was sitting while using a handrail attached to the walls to stand up but doesn't see nothing.

Feeling that she's being paranoid Barbara ignores the voice in her head and takes off the belt of her jeans but she hears the sound again, this time coming from the floor where her wheelchair is. She gives a soft push to see if there's anything under it, she notices something dense but can't describe what, she turns around to turn the lights on and return to take a better view of what was there but once again there's nothing, or at least it wasn't there anymore.

'Am I losing my mind?'.

Now only on her undergarments Barbara uses the handrail to 'walk' into the bathroom, she hates it, she hates not being able to walk, having to use handrails to stand up and move, having to sit on a chair all day to do everything. She opens the bathroom door and once again she hears a sound, like a *crack* coming from her bed, she looks at her bed and just like her wheelchair she doesn't see nothing.

"AAAAAAAAAAAAH" Barbara screams loud but short when she turns around and enter in the bathroom, in front of her she sees the bathroom's mirror reflecting her face. She felt stupid for getting scarred by her own reflection but no one could deny that the atmosphere was a little tense. She feels relief for the fact that her father didn't hear her screams, considering what she was dressing and what scared her it would be a very embarrassing conversation.

After taking her undergarments off Barbara takes a look at the other mirror that could reflect her completely, her naked body shows that she has a good figure, long and good shaped legs, a firm and round ass and a nice and modest size pair of breasts. She wasn't a narcissistic but Barbara always considered herself beautiful and attractive, but not on the level of Wonder Woman of course, it's difficult to compare oneself beauty with someone who was blessed by the greek goddess of beauty and love, but compared to girls her age Barbara was confident she was above the good looking average.

Due to the loss of leg movement and the given away gym equipment, Barbara worries of how she will look in the future, totally normal for boys and girls with 16 years old, she thinks for a moment what activities should she partake so she doesn't become overweight and always stay in form, a wheelchair wasn't an excuse to not look after oneself health of the body.

Getting under the shower Barbara sits on the chair she uses when she takes a bath and wait until her body is fully wet by the water, she closes her eyes trying to relax with the heat and soften her muscles. She feels the water dropping on her hair and run down her breasts, belly and between her legs and finally touching the floor after it passed by her feet.

'This feels so good.'.

After feeling complete covered by the water Barbara opens her eyes again and see something in front of her, it looked like mud, but its color is red and for a second, she could swear the thing had moved. 'This is weird.'. Feeling a little unnerved Barbara takes a squeegee and touches the red mud with it but nothing happens, she tries to use it to push the mud to the drain, but the mud's grip was really firm on the ground. 'Oh great, now it's stucked.'. Barbara tries to pull the squeegee back but it appeared to be glued to the mud, she tries to pull harder but the mud's grip was too strong and Barbara thinks it won't budge until something that she didn't expect happens.

'What is this thing?'.

The red mud moves again but this time it looked like a mouth being open and a screech is made by it making Barbara get scarred and fall from her chair. 'WHAT THE HELL IS HAPPENING?'. Barbara feels pain coming from her lips and forehead and senses blood being dropped by small cuts due to the fall when she touches them with her hands, while still recovering her consciousness, she sees the mud coming at her. 'NO! NO! STAY AWAY FROM ME.'. Barbara tries to crawl backwards but is stopped by the wall of her bathroom, she looks at it understanding that the only exit is by through the strange thing in front of her, she looks at it again and it jumps on her leg, she tries to scream but her mouth doesn't produce any sound.

Barbara looks at the thing on her foot and tries to shake it off using her hands but it starts moving over her and covering her entire leg, when it reaches her genitals the mud starts to cover it as well, going to her other leg and covering it whole too. Barbara tries to grab it with her hands and nails but instead of taking it off the places she pushed grow back again and now with her hands are also being covered by the red mud. 'GET IF OFF! GET IT OFF!' after both arms are covered just like her legs the mud starts to cover her back, belly and chest too, Barbara tries to shave it off her with her hands but without success until the red mud starts crawling towards her neck.

'HELP" SOMEBODY, HELP!'.

It doesn't take long before her entire head and hair is covered by the mud, Barbara tries to roll to the sides and breath but her effort means nothing, for the mud doesn't relent. In a last attempt to grasp for air Barbara's hands touches her throat but soon the shaking stops and she faints for the loss of air.

'Father, Bruce, Dick, Alfred. I'm sorry. I'm sorry. I'm so sorry!'.


After assimilating the metal of which the chair is made the goo notices that its new host is now in a different place, it also notices a new presence near its host, like the one before it smells old, but unlike the one before the smells are similar to the ones its host has. The goo assumes this new presence is a relative to its host.

The goo hears them making sounds, just like before it doesn't understand what they meant, but it knows that as soon as it merges with its host it will understand.

When the noises stop the goo and its host enters in another place, this place smells like its host everywhere, the final plan of the goo doesn't change but it knows that the more genetic material it acquires from its host, the more easy it will be to adapt to the host.

The goo notices its host taking off what could only be its protection gear, it assumes that it was correct in thinking this place was its host nest and was secure and without risk of intervention when they both start the merging.

When a piece of the protection gear falls on the ground the goo goes to it but it makes some noises while doing so, not ready to be seeing by its host yet the goo hides itself before the host looks in its direction. When the host stops looking it reaches the gear, it was humid, but it smelled like the host so the goo starts to absorb and just like it predicted it contained genetic material.

Another piece of gear is dropped, making the goo goes towards its direction quickly but once again it makes noises, this time the goo doesn't have options and just stays put while its host looks at it, when it sees the host ignoring it the goo understood why, it was because the host knew what the goo was and had already accepted it to bond with. Everything the host was doing was because it had only one objective, prepared its body for the merging. Without waiting the goo reaches the other piece of gear and absorbs more genetic material.

The goo watches the host entering a room after it turn lights on, the goo notices the host wearing the bare minimum gear meaning it was ready to begin. Without wasting time, the goo goes at full speed towards its host, but stops when the host makes a short but painful noise. The goo feels pain and can't deny the little sadness it feels for its host action, but the goo understood, the host wanted to do it at its own pace, the goo respected its host even more for showing such imposing stance and determination, telling that if they are going to merge, it will be on the host terms.

Inside the other room the goo sees its host taking off the last pieces of gear that was on top and bottom of its body, just like the other pieces the goo goes over them, first the piece of the top, it still had genetic material but less compared to the next one, the bottom piece of gear was the one which had the most genetic material between all the pieces it absorbed. The goo finally realizes why its host had stopped the merge from beginning, it was because the host wanted to show it where was the best spot to absorb more of the genetic material when the merging starts.

The goo looks at its host, for a moment it feels the smell its host had go away, then it notices its body heat also decreasing, the goo understood, its host was sterilizing its body for the merging.

When the smell was gone and the body heat was stable the goo notices its host touching it with some object, not thinking twice it immediately understood, the host wanted the object to also be assimilated before the merge and it is done.

The goo jumps towards its host and finally touches its body, it is warm, the goo takes a few seconds to absorb some nutrients from the host body, not enough to prejudice the host just enough for the goo to grown in size to cover the entire body.

The sufficient nutrients are absorbed and the goo starts to crawls up the body of the host. Once more the commitment of the host is shown when it rips the goo apart with a part of the body that the goo hasn't covered yet so the merge could go faster.

When the goo reaches an orifice in the host body it notices the same smell the genetic material found in the bottom gear had, for now the goo leaves it alone and goes to cover the others limbs of the host that isn't covered yet.

After just a few seconds the goo completely covers its host, the goo notices the host shaking its body but doesn't go on for long and it soon stops. After a few seconds before the shaking of the host stops the goo notices the body heat decreasing along with the involuntary movements the body does, it notices the host was resting a smart action to do when a merge is happening, but due to the fact that the goo was blocking is respiratory channels the host could be waken so it let to openings on the places where the oxygen appeared to be trying to enter and leave.

Once the host was completely covered the goo starts the merging, thanks to the genetic material the host had provided to it before they started, the process would be faster. The goo focus on two places, the orifice found in the bottom of the host body and the larger one on the host head, the both produce the more genetic material of all the parts of the host external body so the goo decided to use them to finish the merge. It penetrates both holes at the same time, filling in completely while absorb the most genetic material possible.

After it assimilate completely the host genetic material the goo continues the merge. Now that it had the host genetic the goo was in some way part of the host body, and while they were together it felt what the host felt, it thought what the host thought, it craved for what the host craved, but to know what the host felt, thought and craved it needed to know the host and so it did.

While the host slept, the goo saw the insides of the host mind, everything it knew the goo would soon knew as well, and when the goo finally shares the same knowledge the host has, they would both understand each other and grow stronger together.


Barbara wakes on her bed feeling an enormous headache, once she remembers the events of the last night she shakes on her bed touching her body in every place with her hands but doesn't feel nothing. She remembers the wounds on her forehead and lips and touches them but there was nothing there.

"Maybe it was just a nightmare." Barbara said but didn't thought so, as it appeared too real to just be a nightmare, but when she smells and touches her body and see that there's no trace of dirty and sweat the only conclusion possible was that she just took a normal bath and then fell asleep after leaving the shower.

Barbara takes a look at herself one last time and notices the underwear she was wearing, it was the same blue laced lingerie she used when she and Dick were still dating, she thought it made her sexier, she always said to him it was her favorite while he said it was the most daring. But she also remembered throwing it away after their broke up.

Feeling it was still to early in the morning to think about such trivial matters Barbara decides to leave it be and starts to get dressed to school, with the way her head was aching it was sure going to be a long day.

"Let's just hope my first class in the morning isn't biochemistry with Doctor Connors." She said while shaking her head slowly to the sides.


After a long and stressful biochemistry lesson with Doctor Connors first thing in the morning, Barbara goes to her new locker and gives a loud and long yawn while tidying it to fit her persona a little more and almost hitting it with hear head while doing so.

"That's a long yawn Ms. Gordon. Didn't sleep well last night." Barbara smiles when she hears the familiar voice and turns her wheelchair to look at the source.

"You could say that Peter.".

Peter Parker was a newcomer in Gotham, Barbara had met him last year on the final day of school, he had just moved from New York with his uncle Ben and aunt May after having received a scholarship from the school and was totally lost on the building. Not wanting a crisis of her consciousness nor guilty floating on her head Barbara helped him to move around the building showing and telling him where and what each room is. The whole time Peter was nothing but a perfect gentleman, being polite with her and offering to push her wheelchair for her as a form of gratitude for her help and to take her to her house, 'to keep her safe' were his words.

"You need to take care of your health Barbara. I would feel bad if something happened and I didn't nothing to prevent it." There was genuine concern in his voice and that made Barbara happy to hear, after Dick moved to Bludhaven Barbara couldn't stop but feel sadness and emptiness and Peter had helped her to fill that blank space, even if it was just a little, in the small time they met it didn't take to much for them to know each other and become good friends.

"And I see you are taking real care of yourself Mr. Parker." Using a teasing tone making her friend blush Barbara smiles as Peter's face gets as red as a tomato.

When they met Peter was a really slender and thin boy, and he even admitted being mocked by his former classmates because of it, feeling pity for him (and feeling that she wouldn't net them anymore) Barbara had gave him her gym equipment so he could get in shape during the school's vacations, it took some time and tenacity to convince him but in the end Barbara changed his mind. Although she might have cheated a little using her charms to convince him.

Barbara could see the changes on Peter's body, he was still a little slender but the growth of the muscles was now visible, he was nowhere near Dick and Bruce's level yet, but given time he might make the cut.

"I- I took you advice." He said nervous while trying to not look at her face feeling shy.

"Do you still miss NY?" Barbara feeling fueled by her friend's embarrassment decides to change the topic while the both go to their next class.

"Yes. I miss the old gang, Harry, Gwen, Mary Jane, heck, even Flash Thompson. It's hard to believe your ex-bully can become one of your best friends.". Peter had told Barbara the story many times before, how Flash Thompson was always mocking him in front of the others and one day for reasons yet for Peter to reveal to Barbara, they become good friends.

"What about the girls Gwen and Mary Jane, aren't you lonely being away from them?". The mocking tone returns to her voice. Peter always talked about those two with awe and admiration like they were the most gorgeous women in the world, even commented how Barbara's hair reminded him a little about MJ's own. She told Peter that it wasn't a good idea to talk about other women when talking to a woman be in a casual talk or a date for it might make the other woman jealous, and very, VERY angry. Barbara of course wasn't angry, she knew Peter just missed his friends and his old town but it still didn't stopped her with the teasing and letting a grin come out of her lips everytime his face got red in embarrassment.

"They were just friends, nothing more, nothing less.". If Peter wasn't sweating over his entire body Barbara should congratulate him for the achievement.

"Oh, so you did think you could be more than friend with one of them.". She couldn't resist, Peter's reactions were too cute and funny, and made Barbara wants to take a page out of Bruce's interrogation and manipulation book every chance Peter gave her just so she could see his expressions.

"Please stop the torture. Or I, I, I will stop push your wheelchair for you." Despite his failure to sound convincing Barbara makes an exaggerated gesture putting her hands on her chest above where her heart is as if Peter had broken it and feign a fainting.

"Ok, ok, I'll stop, but only if you answer one question I have." Barbara tries with utmost effort to no smile even if Peter was walking behind her pushing her wheelchair, she knew he was smart enough to know what expression she could have on her face just looking at the movement of the facial the muscles.

"Ok, what is it?"

"Do you talk about Mary Jane more than Gwen because she is a red-haided? If so, should I be aware of you Mr. Parker?" Before Peter could answer Barbara's question, he is stopped by the bell ringing and the arrival at their next class.

Going to their places Peter sits next to Barbara whose smile was so beautiful it made the boy blush once more. Barbara's smiles disappears once she remembers Dick and the way they parted away, she was still sad and it was still too soon for her to pursuit another relationship.

Barbara sighs quietly to not interrupt the class nor drives attention towards her. She looks at Peter's focused face, staring at the teacher's blackboard and how cute he looks when he pays attention to something.

'Maybe one day Barbara, maybe one day'.


Author's note: Hello, welcome back. I recently became an uncle, so if I don't upload anything for some time you will know why.

The next chapter of High School Devil x Dovah and A Song of Darkness and Aouls are already being made, so don't worry.

About this story; I'm not much of a DC reader (I only recently started to read Batman, Superman and Wonder Woman) so I decided to write this story based on the few things I know about the Batman storyline.

The story takes place six months after The Killing Joke. Peter and the characters from the spider-man mythos are the only marvel characters that will appear.

Barbara and Peter will be the main characters but the story will also focus on Batman and the others.

Peter will NOT become spider-man, Barbara will take his place and face all his enemies but she will NOT be a spider-based super hero. Peter will be Barbara's 'Alfred' in a manner of speaking.

The reason Barbara is using the carnage symbiote instead of venom is just a preference of mine, it won't alter the story nor will affect the character of Cletus. When you think about it, it won't make a different which symbiote he is using.

Characters age;

Bruce: 33.

Dick: 17.

Barbara: 16.

Peter: 16.

Please enjoy, leave a review (please be polite if you don't like it), follow and favorite if you want.

English is not my first language.