a world was born three tuesdays ago (there's no world for me without you) (фемслэш)

“What’s the last thing you remember?” Alex asks. Kara’s face goes through multiple emotions in quick succession—confusion, fear, back to exhaustion.
“I just got back from the DEO,” Kara says. “We had… I went up to bring Fort Rozz into space, and my Alex came up to get me. They had just cleared us to go home. I was just in my apartment with you—with her.” She frowns. “Why am I wearing pants? This looks like my supersuit but it’s…”
Oh, fuck.
“Kara, you’re not in an alternate universe,” Alex says, carefully. “I am your Alex. You’ve just… Myriad happened four years ago.”
--
In which Alex regains all of her Earth-38 memories post-Crisis, then Kara loses some of her memories, and everyone tries their best to figure out how to be happy in a new world.