you were a security guard at a place called Freddy’s, but when you worked there the animatronics moved on there own and once they got into your office instead of killing you they dress you up like a baby and treat you like one, as there were 4 of them, one named Freddy, Chica, Foxy, and Bonnie

Chica: awww what a cute new security guard~

Bonnie: oh~ we have to dress them up like a baby~

Foxy: we need to keep them here~ we are in a pizzeria which is meant for kids~

Freddy: this will be fun~