A/N: This idea came about after watching the Superflash musical crossover and imagining how the aftermath could play out for Karamel, WestAllen and others. I marked it as a crossover, because I will probably include Flash characters as well. This is mostly/ hurt comfort/romantic and friendship fluff. And will ignore the show's events in terms of action. I'm marking this as AU as well, because well, after next week it probably will be. Title comes from Moon River. I don't own Flash or Supergirl, credit goes to CW, DC and respective owners.

Chapter One: Stay

They'd made it back successfully to Earth 38 after the extravaganza that was Kara and Barry's shared consciousness, which apparently included them being lounge singers for whom Barry had summarized was not so much an overprotective father with issues with his son (that looked eerily like her, well she still wasn't sure what she and Mon-El were life saving kiss notwithstanding) dating the daughter of a gang leader that looked eerily like his foster father and his what he had assumed was his ex-fiancee. (Relationship status: it's freaking complicated). He was just a really bad man that had crossed and reverse crossed Teams Flash and Arrow multiple times over, and how the hell had he ended up in their subconscious Hepburn/Sinatra West Side Story coma dream? She took a deep breath as she entered her apartment building after an extra extra long checkup by Alex and Mon-El and J'onn and everyone at the DEO punctuated by constant recaps and teasing Winn about his singing voice, which he vehemently denied, followed by Kara challenging him to karaoke on a weekend when neither of them were actually having their lives threatened or being arrested.

Her couch had never been such a welcome sight, and she was going to take a nap, she really was, but then she noticed the television was on, and Breakfast at Tiffany's was playing, and Audrey Hepburn was singing. Kara could almost feel the stage lights from earlier, and this made her want to pass out even more.

"I stole Alex's extra key, and she will definitely kill me later, but you still seemed off and..." The voice was familiar, achingly so.

"Mon-El." Despite her confusion, a delirious smile crept onto her face as she noticed the Daxamite standing timidly in the middle of her living room.

"I wanted to make sure you were okay. I'm sorry for basically breaking in."

"Breaking in would imply property destruction…" She looked around. "And nothing seems broken. I think one friend getting arrested this week is enough."

Mon-El nodded. "So...we should...talk right?"

Kara peeled off her jacket throwing it on the couch haphazardly before tumbling on top of it. She was too tired to even consider hanging it on a hook, much less having a proper conversation. "Can we just wait on that?" She cringed, knowing it probably came across rude, if the way Mon-El's face changed was any indication. His hands found his pockets and his foot scuffed the ground.

"I'll just...let myself out then."

"Mon-El…" She shook her head. "That's not what I meant."

He stopped midway to the door.

"I…" Kara sighed. "Stay...please." Her voice climbed, an octave even as her words could barely be made out as more than a whisper.

Mon-El turned and saw Kara's state clearly for the first time since they'd arrived back. Despite eight to nine hours spent sleeping... or the forced hypno -coma equivalent, dark craters could still be made out under her eyes. She was curled up as far back as the couch would allow, and she trembled, whether from cold or the shock of events catching up, Mon-El wasn't entirely sure, but he did know that getting shot was traumatic for anyone, especially when you're used to being bulletproof. He did recall where Kara kept the throw blanket, and went to retrieve it from the bedroom closet without a word. The conversation could wait. Right now, he was just glad she was safe, that she was here with him, and perhaps selfishly that she hadn't kicked him out.

It could all change in an instant, but as he covered her, Mon-El couldn't help but enjoy the feeling of being able to return the favor and take care of her like she took care of everyone else.

A/N: The title of this story comes from a lyric from Moon River originally by Frank Sinatra, later performed by Audrey Hepburn in Breakfast at Tiffany's and performed beautifully by Melissa Benoist on Tuesday's episode: "Two drifters off to see the world, there's such a lot of world to see" and that lyric, well it made me think of both of these couples, and this story was born.