(y/n) Stark never liked living in her brother's shadow. She wasn't extraordinarily smart, at least not like him. She didn't graduate from MIT with only 17 years. And most importantly, she didn't take over their father's heritage, "Stark Industries", with 21 years. But there is one thing she is better at than her brother. She is talented. She plays three different musical instruments, guitar, piano, and drums. She paints for a living, and even already sold one or two paintings under a fake name. And she loves writing. And she does, indeed have a certain way with her words. It is quite remarkable.

Now she just graduated from college and wants to follow a dream of hers. Travel around, and write about her adventures. But of course, her brother and her girlfriend would never let her do something like that. That's why we are in this situation right now. It was late at night, or rather really early in the morning. 3 am to be more specific. (y/n) was sitting at the kitchen counter, her packed bags sitting next to her, writing the three most important letters of her life.

"Dear Avengers,

I owe you a lot. Even if I am not part of your heroes group, you always welcomed me with open arms. Some of the best moments of my life were with you guys. Fooling around and being you, rather than the heroes the world sees you as, and that you are. So thank you. I hope I will see all of you again, and that you don't fight again, I am looking at you, Steve and Tony.

Yours sincerely,

(y/n) Stark"

"My dearest brother.

You are the last person in my family. I was barely a child when our parents died. That's why I do understand that you want me to stay safe. I will never forget the moments we share together. The good and the bad. So I am sorry that I have to leave like that. But living under your shadow, and your protection doesn't allow me to write my own story, to spread my wings. But don't worry, I will come back. I have one last favor to ask you tho, please look out for Natasha for me.

Yours sincerely,

(y/n) Stark"

"My dearest, Natasha.

I am writing your letter last. But it certainly isn't the least. I just had, to get the courage to say goodbye to you, even if I don't even have to say it in person to you. It hurts me the most that I have to do this to you. You are the love of my life. You're my soulmate. And yet, I need to speed my own wings. I beg you not to take it personally. But also, to wait for me. Because I will always come back to you. Please promise me to continue your life normally, while having fun. I will see you again.

Yours forever,

(y/n) Stark"

After finishing the third letter, (y/n) put each one in a different envelope. Took her bags and went on her way to the airport.

--Time skip, 3 years later--

Since I left the avengers tower, a lot has happened. I traveled around for two years. Last year, I rented a small apartment in New York to concentrate on my book. Tomorrow it will come out, so I think, it's time for me to go back to the tower. 

I decided to use my suit, the one my brother made for me four years ago. Luckily the balcony was open, so I could easily sneak up to all of them playing Mario cart. Natasha was sitting the closest to me, which just helped a lot in my plan. I sneaked closer to her from behind, put my arms around her, and advised her to drift right at that moment. But she didn't do that. She rather froze and didn't continue driving. But that didn't take long. Just seconds after I approached her, she jumped up and into my arms.  Wich was quite remarkable from the position we were in. "(y/n)!" She yelled. This grabbed everyone's attention. They all came running and trying to hug me.

As much as I loved my two years travelling, this was the happiest moment ever.