Aaron is your twin and you two are identical twins. When you and Aaron were 15, your parents divorced and you both lost contact with each other. You join the Los Angeles NCIS team. Neither of you knowing anything about each other anymore. You married your colleague G. Callen and had twin daughters. on a normal day Hotch explains to the BAU that they will be teaming up with an NCIS team and it turns out to be your team! Skip to the time the BAU are meeting up with NCIS and their complaining about how annoying the NCIS crew is gonna be.