Tethered Hearts... (James-Sirius-Potter Fanfiction/lovestory)

The year is 2019, and it's James Sirius Potter's forth year at Hogwarts. He's made plenty of friends over the years, one of which is his younger brother, Albus.
Being a third-generation Gryffindor, James has grown a small reputation for himself... as Hogwarts' bad boy with a soft side. Little did he know, he was about to befriend an American girl from Brooklyn.
Katherine (KIT) Blakely is the daughter of an infamous boxer, who was known for cheating in the ring. Her childhood wasn't like everyone else's; being a mobster's daughter wasn't as fun as it sounds.
Kit had always been there when her family needed her. One day, she got sick of being the annoying girl that everyone hates, so she decided to move... to the U.K.
She'd spent her first three years at one of America's best schools for the magical arts, Westwood's Preparatory School for Witchcraft and Wizardry. It took a few months for her transfer to pull through, but she finally got accepted... as one of the last students for this upcoming school year.
Will Katherine open up to somebody other than her trusted kitten, Prince?
Will she manage to make a few friends at her new school?
Find out by reading my book... (title)

Disclaimer: I DO NOT own all the characters that appear in this story. I own a few of them, but several are the work of J.K. Rowling. If you don't know who they are, look them up... they wrote some of THE BEST books ever published. (this is a fanfiction! I am not trying to disrespect any ships or fanfictions written by other authors... so please do not take offense to any of my work)