Taylor Swift and Brittany Mahomes are besties for the resties! On Saturday night, January 13, the dynamic duo stepped out in matching jackets to support their men during the Kansas City Chiefs playoff win against the Miami Dolphins. Swift was spotted arriving in style via viral social media videos showcasing her all-black ensemble, which was layered beneath an iconic red winter coat custom made by Kristin Juszczyk, the wife of San Francisco 49ers fullback Kyle Juszczyk. The “Love Story” singer paired her jacket — which was hand made using jerseys — with high-waisted black jeans, a long-sleeve …