Brother non-cons the sister recommendations

I finished reading in my veins by zaddiestgirl and left hanging because I hated the ending. I’m trying to get the same dynamic with a proper HEA.

The hero is fostered at their home and she is attached to him at the hip and he is basically her whole world. He in turn protects her from the whole world. Takes care of her completely. He is the only one allowed to torment her because she is his (lol, don’t judge me).

He comes into her room at night and does stuff to her, has NC sex with her…you know.

Someone please tell me there is more like this with a HEA 😭