This might be a YA novel, but I'm intrigued
While I have that today, covers usually have no connection to the books, it does seem to go along with the book blurb. In the first impression, we only meet one of the siblings and the Chapter ends with her, at 16, believing that she will finally be meeting her father for the first time. My interest is piqued, especailly since the blurb implies that her father is actually a sperm donor.