Nat And Lena's little sister

what if one day Natasha's little sister Alina Romanoff who is only 15 years old and was meant to be staying with their adoptive sister Yelena belova payed a surprise visit to the avengers compound...

read this story to figure out what happens next and how Natasha and Alina's relationship grows.

I own nothing except for Alina and her story along with some of her friends, the rest belong to marvel

Triggers that may be in this story- Ed, death, torcher, sa, vape/smoking, drug and alcohol use, sh, bad language. That should be about it but if there's more pls tell me.