A scene was cut where she was told to go bug her big sister by her mother. I am not saying this was Lorna, could be some random child their mother had with someone....Floozy

People were freaking out because they weren't twins.

“Is that the Scarlet Witch? No, that’s his little sister. I even had a line which I cut, where Quicksilver’s mother says to the little girl, ‘Go up and bug your sister,’ and the little girl says, ‘She bugs me!’ You never see the older sister, but it was to imply that there is an older sister for comic book fans. I ended up cutting it.

I know it's his little sister but does he have a little sister in the comics?

there is lorna, but i dont think that was supposed to be lorna either. The mom might just have 3 kids from two different dads

@w0nd: yeah I thought lorna at first but she's not a maximoff