This is by H28 on onedirectionfanfiction.com it's wonderful and I hope you like it as much as me. Recommended for 17+

The passionate story of Tessa and Hardin continues as family secrets, deep betrayals, and career opportunities threaten to tear them apart.

17 year old Jessamine Taylor has just recently moved to California after her parents both get job promotions. She's very excited to be moving to a new state. The only thing that catches her off guard is one of Hamminton High School's bad boys, Harry Styles. Something is different about this boy, and she wants to find out.