United Kingdom, Feb. 22 -- Travis Kelce was "enchanted" by Taylor Swift from the very start of their relationship.

The Kansas City Chiefs tight end, 35, and pop phenomenon Taylor, also 35, have been dating for almost two years, and according to the NFL star's brother Jason Kelce, his sibling knew "early on" the romance was serious.

Jason said on TNT's 'The Steam Room' podcast: "I remember the first time he said he was hanging out with her and I remember just being like, 'Are you kidding me? You're hanging out with Taylor Swift? Like, that's insane. That's awesome for you."

Taylor is frequently seen supporting Travis at his NFL games and Jason - a former Philadelphia Eagles player - went on to reflect on their relationship and his broth...