YA smutt - step-siblings romance where they grow up togheter and develop feelings for each other but don't act on it until they're 18

[Iz]

Read this in 2021-2020. Here's all I know:
Girl's mom marries boy's dad and they become inseparable after that (they were very young- maybe five or something like that). Her step dad was her mom's old boss and they fall in love. The first time the girls sees her new house she thinks it's a castle and her new step-dad asks if she'll be the princess of it (not sure about the princess part, have a vague memory of it). After that, it shows a little bit of her and the boy growing up: they were best friends, stayed up late to play videogames, slept in each other's bedroom, I remember this specific scene where the girl has her fisrt period and doesn't wanna talk about it and the boy is very sweet about it (i think he brings her chocolate or somthing like that- she at first didn't wanna tell him because she thinks it's going to change things between them but he says it won't happen). Fast forward to when they're in high school and they start to grow apart and fight a lot because they both have feelings for each other but don't want to desapoint their parents (girl ends up being a daddy's girl and boy a mama's girl, but not in the brat way, but in a way they don't want to disapoint them), so they hide their feeling until they're both on their senior year (end of it) and 18 (they don't know the other feels the same about them). I remember a scene where the boy is teaching the girl how to drive when they're like 16 and she receives a text from another boy and he gets super mad about it and they fight over it. Parents are telling them they should go back to being friends how they were before. Sorry if it got a little confusing, but I tried to put down everything I remembered about it. I think it was realeased this year, but I'm not sure. It's a hot novella and they lose their virginity to one another - they have to dodge their parents for some time, like when theur parents go to the movies and they think they have the house to one another and start to make out but the parents came back early and almost caught them, but I think the dad caught them in the end after they lose their virginity to each other (after prom I think) and sleep in one of their bedrooms, but forget to lock the door. The parents end up being ok about it and everything work outs in the end. May be from Ella Goode, Alexa Riley, Lucy Darling, Jessa Kane, Madison Faye, or Mink (they're usually my go-to authors so I'm assuming is from one of them, but may be wrong)
Thank you so much for the help!