((Her name is Mana, you've been friends with her ever since you two were kids, she was super flirty and you never noticed, all of her attempts to flirt were always foiled by either her failing herself or you just not getting it, and she is way too prideful to ever tell you))

you were walking past a staircase when suddenly Mana suddenly jumped down the stairs towards you, butt first

Mana: heyyyy! Look out below!!! she smiled mischievously as she flew down, hoping she didn't fail