I really enjoyed this one, I might make it a story :) yes I'm insane. I'll probably make it a story when I get close to finishing my other Avengers fanfic, Spectra.
How you meet:
You were kidnapped by Hydra and taken to be experimented on. You were the third part of the project. There wasn't just Scarlett Witch and Quicksilver.
There was you.
The thing is you didn't get a name yet.
You were sitting in your cell and waiting for them to take you back to that horrible horrible room again.
Before anyone came to get you, there was a big blast and you shielded your head and face because of the debris.
The usual guard didn't walk towards you but a woman with bright red hair and in a skintight black jumpsuit walked in.
"You're getting out of here." She said and you got up, you obeyed anyone to not get hurt again.
"You don't have to be afraid." She said and led you down a couple of hallways and outside.
She led me to a jet and led me in.
You I'm slowly and surveyed around the jet.
"I'm Natasha." She said and I looked at her.
"Y/N." You said softly and she nodded.
"Welcome to the Avengers Y/N." She said.

How she asks you out:
You were now apart of the Avengers but you still wasn't talking much, except for Clint and Natasha.
Especially Natasha.
You found a name for yourself, your power was making force fields against bullets, it's like a shield but all around you. Electra was your name, Bruce Banner came up with it. It's sciencey so of course he came up with it.
You knew that she wasn't fond of love but you didn't care, you liked her anyway.
"Hey Y/N, I have another mission I have to go on but I wanted to talk to you quickly." Natasha said walking into the room.
"Okay." You said and looked up at her from your book.
"So you know how I am...but...I was just wondering if you wanted to go on a date with me?" She asked and looked at you.
Your face went as red as her hair and nodded.
She smiled and nodded. "Okay, I'll be back in a couple of days." She said and stood up to leave.
She walked out, leaving you smiling like an idiot at your book.

Your first date:
Natasha came home from the mission and greeted you very happily.
You were getting ready for the date and curling your hair, she knocked on your bedroom door.
Smiling, you walked towards the door and opened it.
"Hey there." She said and you smiled and waved.
"You ready?" She asked.
You nodded and pulled on your jacket as you walked out and closed the door.
Both of you walked to the elevator and went up to the roof of the tower.
"We're going in a helicopter." She said and smiled
Your eyes went wide and you smiled widely as you pulled her to the helicopter and hopped in.
You spent the entire ride holding her hand and looking at New York from way up high.
Your opinion, best first date ever.

She finds out you self harm/harmed:
You were living in a nightmare.
You were an experiment that went rouge.
You hid from everyone the first chance you had.
In the bathroom you would hurt yourself without Natasha ever finding out.
Well, Natasha being Natasha she found out. She is a spy.
You were sitting in the bathroom crying and breaking.
Natasha walked in and heard you crying.
"Y/N?!" She called and ran to the bathroom and you jumped up.
"Natasha, you weren't supposed to be here." You said and she looked at you.
"Hydra nightmares?" She asked and you sighed.
"My life is a nightmare." You whispered and she looked at you.
She hugged you tightly and rubbed your back.
"You're the only light of my life." You whispered and held onto her.
"I'll always be here for you. I'm not leaving you." She whispered and you nodded a little.
"Now let's go cuddle and watch some movies." She whispered and you nodded a little as you walked with her to the couch and sat down.

First kiss:
You and Natasha were on another date and you two were having an amazing time.
After you had dinner you went out for ice cream.
After the ice cream, she walked you back up to the floor of the tower you were staying in and she smiled softly.
"This is really really fun. I love doing this with you." She said and you nodded and looked at her.
"We should do it again." You said and she laughed softly and nodded.
"Of course." She said and leaned down to you and kissed you softly.
You smiled and kissed her back. Natasha pulled away and smiled down at you.
"Wow." You whispered and blushed.
"Yeah, wow. I'll see you tomorrow." She said and winked as she walked away, leaving you a giggling mess.

You meet the rest of the avengers:
You were silent on the quinnjet that first time they met you so you didn't really meet you.
So the first time you really met them was a week after you joined them on the team.
You were sitting on the couch on the main floor of Stark Tower with Natasha as they all walked in and you looked at Natasha.
She grabbed your hand and squeezed it a little and smiled a little.
"It's okay. They're really nice." She whispered and you heard it become silent.
"You all owe me 20 dollars." You heard Tony say and you looked over at them.
"I kinda bet them that you and Natasha were dating." He explained and you smiled a little and nodded.
"So this is the team. Steve, Captain America, Clint, Hawkeye, Wanda, Scarlett Witch but you already know her, Thor, Tony, Iron Man, Bruce, and Bucky." Natasha said and you nodded.
They all waved when she said their name and you smiled at them.
They sat down around the room and you all hung out for the rest of the day until 3 a.m that morning.

You make it official:
You heard a rumor about something Natasha said to a Loki one time, and it made you very uneasy.
After a workout with her you stopped her for a second and took a deep breath.
"Love is for children?" You ask and her face fell.
"Y/N that was before I met you. I didn't love anyone till I met you. Please don't listen to that" she begged and you sighed.
"Why would I believe that?" You asked.
"Why would I say that to my girlfriend?" She asked and you looked at her.
"Girlfriend?" You asked and she nodded.
"Yeah, girlfriend." She said and you smiled.
"I'm sorry I listened to the rumors. I just kept hearing them." You said and she looked at you and shook her head.
"Don't worry about it babe." She said and walked over to you.
She kissed your cheek and went back to her bag to put her hand wrap away.
You smiled and followed, you did the same thing and walked out of the gym with her to the kitchen for some food.

First I love you:
You were on a mission without Natasha for the first time and you missed her like crazy.
On the ride home you couldn't fall asleep, the idea of seeing her in less than 24 hours was something you couldn't wait to happen.
When the quinnjet touched down you were the first one off and you ran into the base.
You run to the gym, where Natasha usually was and you looked around, not seeing her.
"Boo." She said behind you and you jump but smile.
You whirl around to see her and literally jump on her, wrapping your legs around her waist.
She laughs and holds you tightly so you don't fall.
"I missed you so much. I love you." You whispered and she smiled and kissed her head.
"I love you too." She said and you giggled softly.
Both of you spent the whole day together cuddling and watching movies.

What she first thinks when she sees you:
Why is she here?
Damn Stark, why'd you blast this place so hard?
Come on, tell her it's okay and she's escaping now.
Wow, she's really pretty.
Come on, focus Natasha. You need to focus and get her out of here.
Well, now she's on our team.
Good.

Avenger she's jealous of:
Wanda.
She's a little more innocent than Natasha and Natasha has always been self-conscious of her spy profession.
And Wanda and you had similar experiences and she was really worried about you leaving her for someone who had more of a similar lifestyle to you.
You always end up cuddling with her for hours and hours and hours if she feels bad about herself.

She sees you topless/naked:
You and Tony had a lot of prank wars against each other.
Just because you're quiet doesn't mean that you don't have a devious side.
You had just shaved off half of Tony's famous beard, and he was bound to retaliate.
After a long night you went to sleep, and stayed asleep till 11 the next morning and you get up to take a shower.
You take off all of your clothes and leave them in your room and turn up the music as loud as it can go.
The music was so loud you didn't hear Tony walking into your room and stealing all of your shirts and bras.
You were screwed.
You turned off the water and walked out into your room and looked into your drawers for your shirts.
Realizing what must've happened, you swore under your breath and called Natasha on your phone.
"Nat...Tony stole my shirts...and bras...can you bring me some of yours?" You ask and she laughs softly.
"Of course, I'll be there soon." She said and hung up.
You pulled on some jeans and shivered till Natasha got to your room
She knocked on the door and you said come in.
She walked in and tossed you a bra and a shirt.
"Thank you so much." You said and quickly got dressed.
"No problem, that was very evil of him and you are very cute without a top." She said and you blushed brightly.
"Thanks." You said and blushed even more.
She laughed softly and walked out of the room.

She sees you cry:
You had constant nightmares of what Hydra did to you.
It was haunting.
Natasha and you have moved in together and she had been able to calm you down before you started to break down.
That night was different.
You woke up screaming and crying.
Natasha woke up right after you and looked at you.
She wrapped her arms around you and tried to calm you down.
You were crying and crying, not wanting to explain or think about it.
Natasha didn't question anything, she just held you until you calmed down.
"T-Thank y-y-you." You whispered and she nodded.
"Of course." She said softly and laid down with you still in her arms.

You see her cry:
You were on a mission with her and she was getting into another Hydra base.
You were on the outside and fighting the guards that were trying to get inside.
Over the comms, you hear the grunts from Natasha as she fights her way through the base.
After a second of silence you hear a scream and you pause.
"Natasha!" You yell and turn to the doors that she's supposed to come out of.
"I'm getting her." Clint said over comms and you hear sobs through the comms.
"Nat, Clint's coming for you. You'll be okay." You said and tried to keep it together.
Clint came back out with Natasha leaning against Clint.
You run over to them and saw Natasha's leg had a huge gash in it and it was oozing blood.
Tears were steaming down her face and she looked at you.
"It'll be okay." You whispered and helped Clint carry Natasha to the jet.
You lay her down and kneel down next to her.
"Hey, it'll be okay. Bruce will help you." You whispered and she looked at you with tears in her eyes.
"You'll be okay." You whispered and she nodded a little.

She gets jealous:
Natasha would get jealous kind of a lot. You were hers and she never let you forget it.
Whenever anyone was flirting with you she would walk up to you and wrap her arm around your waist and kiss your cheek and say something like, "Is this person bothering you?"
You would shrug and that's the signal for her to get them away from you.
Then she would look at the guy or girl and would say something for them to scatter away from you and her and never bother you again.

She thinks she's not good enough for you:
You walked in and saw Natasha sitting on the couch, just staring at the wall.
"Nat?" You asked and she jumped out of the trace she was in and looked at you.
"Yeah?" She asked and you walked over to her.
"What's wrong?" You asked and she looked at her hands.
"I don't deserve you. I'm a spy and I kill people for my job." She says and you hug her.
"You know I love you and I wouldn't leave you ever. Please won't worry about this, and you don't have to worry about me leaving." You said softly and she looked at you and smiled a little.
"I love you too." She said softly and hugged you tightly.

You're on your period:
When you were in your period the pain was very very very real.
Usually, you were curled up on the couch, trying to help the pain go away.
Natasha walked in and took one look at you and walked over to you and rubbed your back.
"Hey there, period again?" She asked and you nodded a little.
"Okay, I'll go get a warm water bottle and some ice cream." She said softly and walked to the kitchen.
You smiled a little and sat up a little.
"Thank you." You called over to her and she smiled as she got you the things you needed.

Holy crap I did this in one day!

And it's over 2000 words!

Like holy shit!

That's amazing!