Young Adult Book Reading Challenges discussion

I'm looking for books where the heroine has a romance with her sister's ex. Any recommendations?

I'm not sure this would fit what you're looking for, but there is Goldengrove by Francine Prose. The main character's sister actually dies, and then the other sister strikes up a romance with the grieving boyfriend. Overall though, the book is more focused on loss, grief and moving on than it is on romance, so if you're looking for a straight-up romance this probably won't be the right pick.

is one that comes to mind.

The Sky Is Everywhere was one of my best books that I read last year.

That Summer by Sarah Dessen. It's her first book.

Doesn't Pretty Little Liars have one of the characters that has a fling with her sister's BF? That book series is more on an ensemble cast.

I liked the first book in the series--after that I found them tiresome.

someone else is u, but stupid did trust a lot time to another time - everything this over 100 pages seem 50-50 someone's book - if this book thought sis as that sister who u saw through the times sister cried, hurt, broken-heart - author u even know me more than sister - how can u have that feeling 99% with me - but there is one habit that CEO never had- but u always have - if author already saw that deepest hurt in sister - and that CEO now is having a great times - sister wish that truth came true - but might be author warned that too strongly to push her have this step on --- really hard for this siter.