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

Working for a world-leading mafia, Harry knows how to kill, how to hunt his victims, and how to avoid any company of any kind. He's used to a lonely, quiet, and harsh environment. He is the best at what he does. And everything he does becomes problematic when he's assigned to protect the boss's daughter from world-known killers. Catalina tries to understand him, eventually failing because instead she falls for a man so willing to resist her. [Contains Mature Content]

In which a boy-unlucky college girl receives a rather, erotic picture message on accident. Highest Rank: #3 bRO Copyright © Michella 2015. No translations pls cover by me Re-make in my works :)