2nd part of the saga "Your sister is a furry"

One day you come back home early much earlier than your parents come from work just to find your sister Olivia dressed in a wolf fursuit looking at herself in the mirror, but not only her; then you find your brother Daniel dressed in a panther fursuit and your own mother in a fox fursuit.

You just discovered the family greatest secret, they are furries having a huge world hidden from everyone only to them.