Caitlyn Jenner hits the ESPYs with rumored live-in girlfriend, 21-year-old Sophia Hutchins

Wednesday night's ESPYs were a glamorous night out for Caitlyn Jenner and her rumored girlfriend, Sophia Hutchins.

Despite a 47-year age difference, Jenner, 68, and Hutchins, 21, looked perfectly content as they sat side-by-side in color-coordinated outfits during the ceremony. Both wore royal blue, with Jenner opting for a conservative sleeved sheath while Hutchins donned a slinky slip dress.

The two reportedly live together in Malibu, where they've often seen grabbing morning coffee at a neighborhood spot, according to the Daily Mail.

The two have never publicly confirmed a romantic relationship. At 21, Hutchins is squarely between the ages of Jenner's youngest kids -- Kylie, 20, and Kendall, 22, both of whom have also declined to speak publicly about the alleged partnership.

But while they don't say much to the press, Jenner and Hutchins have made several appearances together this summer. In June they traveled across the globe for Vienna's annual Life Ball, and a few weeks later they attended an awards ceremony as a duo.

Additional info can be gleaned from Sophia's Instagram profile, where she's not shy about posting snapshots of her life with Caitlyn. From golf outings to bikini photo shoots, take a look in the gallery below.