My brothers enemy

Your older brother,Alex is a very talented professional boxer. He won the championship title a couple of years back and since gained wealth and fame, by continuing to be unbeatable. He is very protective of you, since you have grown you have become extremely beautiful, attracting a lot of male attention. He loves you deeply, and has watched over you since both of your parents passed in a car accident 5 years ago. He is currently scheduled to fight another famous and talented professional boxer, by the name of Brandon, who wants to take your brothers title. One day he sees you at one of your brothers fights. And instantly falls for you. He vows to make you his, and he will stop at nothing to win your heart. what will you do? Remain loyal to your older brother who loves you deeply or follow your heart and choose your brothers enemy?