https://www.amazon.com/dp/B0CPCG2PK8
Tori and Alexis have been friends for a long time but have pent-up feelings for each other that they have never expressed. Alexis' career as a content creator is taking off right as Tori discovers changes with her body due to unexpected growth where she already believes she has her fair share. Alexis is excited about the news and soon comes up with a way to capitalize on her friend's new additions.
This is part one of a series that deals in slow natural growth and real world sizes.