The new baby quickly became a celebrity through all of Gotham city. E! News held polls and debates for which socialite was Bruce Wayne's baby mama. A majority few of his exes made public claims to the baby, and most surprisingly, even old creepy rich guys pimped their daughters to gain a "partnership" with Wayne Enterprises.

Meanwhile at Wayne Manor, the baby's history was the least of anyone's concern. Obviously it took one guess to know she was adopted, and y/n was instantly the center of attention.

Dick Grayson was the most elated person to have a baby girl at Wayne Manor. He also was the person who spent the most money on y/n, even getting her totally extra diapers. Hey, baby Wayne's gotta look fabulous every day of the week. And taking your baby sister out for walks was totally a deal maker with babes (he means Babs!! Totally Babs... or Kori..?!?)

Tim Drake liked her fine (especially happy to have a little sibling that wasn't literally a demon spawn), was actually the most responsible one, but he was more interested in her abilities. He had to often be reminded that y/n wasn't a test subject, but actually his adoptive sister. So, Tim was totally the big brother that hung out at the pool with y/n.

Damian was eternally grateful he wasn't the youngest, but now it meant that he was essentially the 'middle child', was uninterested and unkind to the baby (upset that he wasn't the baby anymore. What? Pfft! No?! Who gave you that idea!). He hated it when any and ALL grown ups pulled his cheeks about being a big brother, and absolutely resented y/n more because of it, but when no one was looking, he would totally have conversations with y/n about life being a Wayne.

And then there was Jason. The cool, detached, "I don't care" kind of big brother.

Ba humbug!

In reality, he was y/n's second father, sometimes even father one before Bruce. If someone made her cry, they would get a longer lecture from Jason than from Bruce. If someone was taking her to babysit, Jason's list was longer than Bruce's. And God forbid if Jason Todd ever had to take y/n to her doctor's appointments. Bruce had put a ban on it ever since the baby's bill was added to the physical damages to the nurses and property caused by Jason.