What is a good exercise to lose love handles?

So I know I’m not fat, I just have love handles I wish weren’t there. Im 16, 5′ 8", 130 and size 3, in my pants even pajamas my lovehands always hang over. I exercise plenty, I am in waterpolo so I go to practice 5 days a weeks 2-3 hours a day. I am active besides that always running around or riding my bike. I just want an exercise that will make my love handles go away or lessen.