Celebrity Pippa Middleton Challenges Brother James to a Friendly Tennis Match in St. Barts By Jonathan Borge Jonathan Borge Instagram Twitter Jonathan Borge is a writer and editor living in New York City. His writing has appeared in Glamour, Refinery29, Forbes, and PAPER, among other publications. Plus, he's held staff positions at Marie Claire, InStyle, and OprahDaily.com. Currently, he's the Senior Entertainment Editor at Bustle Digital Group's Elite Daily, where he oversees digital covers, features and profiles, freelance essays, and strategy for the site's TV/Movies and Celebrity and Music sub-verticals.He primarily writes about pop culture and style, and has a passion for telling LGBTQ+ and Latinx stories. When he's not working, he's likely waiting for Lady Gaga to announce her next tour. InStyle's editorial guidelines Updated on January 4, 2016 @ 11:30AM Pin Share Tweet Email Photo: CRYSTAL/PacificCoastNews A new year may call for big lifestyle changes for many, but we'll bet Pippa Middleton isn’t changing anything when it comes to her fitness routine. On Sunday, the 32-year-old brunette picked up the racket and challenged brother James to a sunny tennis match while vacationing in picturesque St. Barts, where she's been spotted before serving up major #fitspo. For the sweat-inducing session, the philanthropic—and super athletic—younger sister to Princess Kate rocked a collared red sleeveless top, white tennis skirt, comfortable trainers, a Nike visor, and dark-tinted sunglasses. CRYSTAL/PacificCoastNews So how did 28-year-old James perform next to his older, marathon-running sibling? While we’re not sure what the outcome of the match was, we do know that James looked the part, too. The handsome Brit rocked a pair of printed lavender shorts with colorful sneakers and socks, and shielded himself from the sun in a hat, and, like Pippa, a pair of sporty sunglasses. PHOTOS: Kate Middleton's Most Memorable Outfits Looks like Venus and Serena Williams may have found their rivaling sibling match.