Knight and Shining Mascot

(Mature just in case honestly.. maybe language and maybe something more later on.)
Emma Swan has a secret, one all of New York has been trying to find out. She's the mascot for the knights of New York, the most loved football team in the whole state. When she isn't being the mascot for them she works as Ruby Lucas's personal assist, who happens to be the owner of the whole team and the stadium itself. Ruby and Emma's best friend Mary Margaret are the only two people in the whole state that know of Emma's secret which makes her life quite fun.
Killian Jones is the quarter back and most loved player right behind or next to David Nolan, he's a flirt and a lady's man in every way which leads him to flirt with Emma Swan. She of course doesn't take any of his bullshit, making a little game called 'flirt until she physically makes you stop'. To get back at Killian for being a jerk and annoying Emma decides to mess with him on the field when she's their mascot. He gets annoyed and she loves it so begins a new game from her side, 'annoy him until he physically makes her stop' the only thing is he doesn't know it's her. They play back and forth at each other, accidentally learning things of each other and maybe even falling in love in the process.