Patrick Mahomes and Brittany Mahomes. Mike Coppola/Getty Images for Sports Illustrated Swimsuit Brittany Mahomes is her husband’s biggest fan. Brittany, 29, took to Instagram on Sunday, December 8, to gush over Patrick Mahomes’ game day look. Ahead of the Kansas City Chiefs vs. Los Angeles Chargers game, Patrick, 29, looked handsome in a light brown…