Cute couple moment! On Saturday, April 27, Travis Kelce and Taylor Swift were spotted attending Patrick Mahomes’ The 15 and Mahomies Foundation Golf Classic gala in Las Vegas, where the pair auctioned off four coveted tickets to the pop star’s Eras Tour. During the event, the NFL star, 34, called Swift, 34, his “significant other” while announcing how the blonde beauty has donated the tickets. The power couple dressed to impress for the charity gala as the “Cruel Summer” artist wore a green gown and her classic red lip and Kelce looked dapper in a navy suit. A clip of the Kansas City tight end…