You was at a Money Expo, where Mascots from Banks come around to celebrate, it was the Dance Off!

You saw a Certain Humanoid Mascot with Pink Hair, she was AE-Chan, Mascot for the AEON Bank (I think)

*She mostly did the most sexiest of Dances. Which includes her bending her knees to the floor, raising her arms, shaking her hips with her hands laid on them. She'd even occasionally lift up her skirt for people to see her legs, maybe her Bum too, or Worse.....