Bruce introducing Fem!Reader to the family for the first time.
Bruce: This is my biological daughter whom I'm extremely stupidly protective of and hidden from you all
Bruce: Please, be nice. She is weak and fragile and helpless. And, mourning her dead mother.
Everyone looking at Damian for his reaction since he's just barely getting out of the blood son phase
Damian: I need to make a call
Everyone: ...
Cass: That wasn't a negative reaction
Damian in the Batcave making a call to his mother on the Batcomputer.
Damian: Greetings, Omm.
Thalia: Habibi, what is that matter?
Damian: It's father. He has just informed us all that I have sister. A blood sister.
Thalia leaning forward as a lethal gleam in her eyes.
Thalia: Oh?
Damian: She is...
Damian: ... untrained. And, has lost her own mother recently
Thalia: *Gasp*
Damian: I know...
Damian: You need to come to Gotham as soon as possible and train her. I don't think father plans too.
Thalia already setting up a jet to fly in: I WILL BE THERE IN TWELVE HOURS
A/N: Little crack idea for Damian actually being the first to start up the fanclub for his new sibling. No sister of Damian's isn't going to know how not to defend themselves. 😤 And, Thalia jumping at the opportunity to be a girl mom just feels right. She just wanted a blank one to start with and for them to be Bruce's blood.
A/N: I don't know if I got those terms of endearment right.