Prompt: Maggie gets protective over Kara and when Kara asks why Meggie goes like "You're my girlfriend's little sister. So it's like I'm your big sister for extension..."
Kara’s had one of those roll up my sleeves and chug the whole glass because if I’m gonna get drunk, I’m gonna get drunk hard drinks, and she’s squinting cock-eyed in a second, a permanently dazed grin on her face.
She’s slurring and she’s laughing and she’s leaning across the booth into Maggie because I have to tell you a secret – don’t worry, it’s not a bad secret, it’s a good secret – my sister’s never had this many feelings for anyone before like she has about you – and Maggie’s grinning and telling Kara to stay put, don’t fly off anywhere Little Danvers, I’m just gonna get you some water, I’ll be right back and Kara is calling out for potstickers, too, and Maggie’s chuckling and shaking her head with M’gann affectionately and then she’s turning and reaching for her gun because then something is wrong.
Because there a couple of hulk-esque guys Maggie’s never seen before leering over Kara’s table, and Kara is smiling and Kara is laughing and Kara is slurring because Kara believes the best in everyone and Kara is not used to being drunk.
She’s back across the bar faster than Barry Allen could have been, and she’s slipping her tiny body between Kara and the men looking down at her like they’ve just been served dessert, and she’s flashing her badge and she’s flashing her gun and she’s if you’re not away from this girl and out of this bar in the next ten seconds I swear to god you will find out why I have the highest marksmenship ratings of anyone in my precinct and just how good being on the science division makes me at knowing how to hide bodies.
And they’re scampering and Kara’s slapping her thigh laughing and she’s leaning across the table again as Maggie thuds down and she’s patting an uncoordinated hand on Maggie’s shoulder and she wants to know those guys were so much bigger than you, Maggie, they were like giants and you’re like a tiny, tiny little ant or something, but you made them run away – it was funny, how they ran away – why did you do that for me? Giants! Ants!
Maggie shakes her head and sighs and puts her hand on Kara’s forearm and gives her the only explanation that makes sense, one that she hopes she’ll remember in the morning: You’re my girlfriend’s kid sister, Kara. So it’s like I’m your big sister by extension. There isn’t anything I wouldn’t do for you.
Kara’s uninhibited smile lights up the room just before her head lolls back and she passes out on her own shoulder, muttering something about gotta tell Alex this one’s a keeper, so tiny though, and I get two big sisters now.