The young assassin Avery x Natasha romanoff

Avery Lev Smirnova is a young 17 year old Russian assassin
that was trained in the red rooms at the age of 5 before they were shut down then later on got caught by hydra around the age of 10 before Tony stark found her and took her in ever since then she has lived with him and pepper and went to school to learn English then at the age of 17 tony stark decided to introduce Her to the avengers where she fell in love with the one and only Natasha romanoff where it first started cold then became warm, with all of Avery's trauma and mental health and nightmares and trust issues will she let natasha in or will she chicken read and find out

Smut,Fluff,SH,ED, anxiety, panic attacks, PTSD, Etc
I will put warnings for you guys so you know if you want to skip it.
(I don't own any of the marvel characters besides for Avery and Addison and willow and brody you will know in the description before the book starts)