The Avengers team. Fury, Steve, bucky, Tony, Sam, Wanda, Natasha, Peter, Bruce, Maria, Rodney and.... Y/N Gray... Ever heard of overprotective big sister? Yep, That's Y/N.

The team are after twins from hydra, Adrian and Alice Gray. The team didn't realize it was Y/N's little brother and sister, so they didn't think about Y/N being protective. Y/N was at hydra, but got saved.

Adrian and Alice see Y/N, the both immediately says

Adrian and Alice: Roger Roger!