Kronii catches you backstage banging a Kronii cosplayer
You don't notice her so you just keep going at it
She's angry until she realizes that the girl cosplaying her is pleasuring you better than she ever could and she's been outmatched by an imitation
Now she's just sad
Kronii starts getting off to it
the girl cosplaying
girl
now replace sad with horny and you get a prompt I would write