Taylor Swift and Tom Hiddleston's whirlwind romance just keeps heating up! Hollywood's hottest new couple once again looked smitten with each other, this time among the scenic ruins of Rome. The 26-year-old pop star radiated in a bright yellow sundress and polished off the look with a Louis Vuitton top-handle bag and cobalt blue flats. The couple shared a passionate kiss while sightseeing in the picturesque Italian city.