10, Jason and Cass? Please?

lysical:

“You know damn well why things are the way they are.” 

Cass scoffed, tapping Jason on the nose. He jerked his head back and kept his arms stubbornly folded. She frowned at him. “Little brother. Language.” 

“First of all, I am not the little brother,” Jason replied. “And I saw you signing worse things behind Bruce’s back on patrol so don’t even start with me.” 

“Play the game,” Cass said, choosing to avoid his accusations because he was right but that meant nothing. He was the little brother and that meant Cass could chide him for bad language whether or not it was hypocritical. She’d learned that much from Dick. 

“I’m not playing the game, you just want to skip cutscenes. Play it yourself.” 

“No. It’s bonding.” 

“I don’t have to listen to you.” Jason turned away, rolling over on the couch and sulking. Cass knew he was the little brother. He sulked too much to not be the little brother. 

“You have to listen to me,” Cass said, poking him in the side. “Little brother.” 

“You have no proof of that.” Jason slapped at her hand. “Until I see documented proof that you were born before I was, it doesn’t count.” 

Cass huffed. The timeline of Jason’s death, resurrection and the Pit meant that nearly everyone considered him younger than his age on paper anyway, Cass had heard them talking about it and seen Bruce’s files. No one wanted to argue with Jason about that though, because he was sensitive about his death and everything surrounding it. 

Cass was sure it was just because he didn’t want to admit he was the little brother. 

Fine. She would show him. There would be proof, and then he would have to admit it and Cass would Win. 

And then they could finally go back to bonding and playing games. 

“Fine, I will get proof,” Cass said, despite her misgivings of any documentation existing in the first place. “But you will be a good little brother when I prove it.” 

Jason grumbled. “I’ve never been a good little brother in my life, why would I start for you?” 

Cass kissed him on the forehead and then got to her feet. 

She had a Mission. 

Operation: Prove Little Brother Wrong was a-go.

fyi I do have the tentative ‘patented heget fusion fandom crossover where the second fandom is an in-universe story’ for Voltron: Legendary Defender in The Silm. Namely that it’s one of the younger readers adventure romance cycles that Findis writes for her huge fanbase in Valmar and it’s super popular. Lions are a favorite animal of the Vanyar and the SF elements are fantasy elements here – giant robot lions that are actually celestial other-dimension beings are now Maiar-esque other dimensional beings. Allura and Coran are elven still but what with the popularity of mortals in Second Age Valinor, Findis makes the rest of her leads mortals. In honor of Beren and Gwindor and even Maedhros – the leader is missing a hand. A girl off to find her captured older brother and father is going to resonate with way too many of the remaining Noldor (Galra are orcs? Findis’s version decides to make align them more Avari corrupted by Morgoth but with rebel groups; she wants a less Marred and more hopeful universe. No Edain groups were ocean lovers? She’s inventing one and he loves terrible pick-up lines and is a great friend. His personality is based off of one of Olwë’s sons, secretly. Nobody asks who Lotor is based off of.)