Okay, here is the thing. Kara is always this big ball of energy, right, and sometimes, she just needs to burn it off. Of course, these days, most of that takes the form of her Supergirl Shenanigans, but think about this. Kara, in college, discovers Parkour. At first, she’s super conservative with it, but the longer she does it, the bolder she gets, until she just becomes kind of legendary among the local Parkour groups for being completely freaking fearless. But Kara gets really uncomfortable about all the praise, because honestly, she can’t get hurt, so she’s not taking any risks, but it makes her feel free in a way very few things do before she becomes Supergirl.
And it kind of grows from there, until Kara has tried all sorts of Extreme sports. Mountain Biking, Wind Surfing, Kite Boarding, Base Jumping, Parasailing, skateboarding.
Now, imagine one day, Cat decides to check up on her former assistant, and does a google search, only to find dozens, if not hundreds of youtube videos of Kara doing absolutely ridiculously difficult and dangerous stunts, and she’s just sitting there, shaking her head, and wondering what it would take to get all the videos removed from YouTube.
“YOU told me to dive, Cat!”
“METAPHORICALLY, you idiot. Not off a literal cliff!”