search romance book by plot

[Laura]

Hi there

I'm searching a romance book I read earlier this year. I don't know the name or the author but I do know some pieces of the plot. It's about a guy and a girl knowing eachother since childhood, but while she was still a baby he was already a few years older. As they got older he begins to develop feeling for her and they begin to have a secret affair without anyone around them knowing anything.
Throughout the book they face a lot of issues due to their age difference (he's at least 5-10 years older). I also remember there were some brothers involved although I'm not sure if they are his brothers or hers.
I also think the book is from a series of brothers finding love...

So let me know your suggestions!

thank you in advance :-)

[Arenda]

This is not something librarians can help you with.

You might try this group: https://www.goodreads.com/group/show/...