10 years, 1 month.
You and your sister are truly making the most of spending Christmas week with your cousins of the same age.
It is impossible to be bored or needy at their house; which contains an epic play room, equipped with plenty of dolls for the young girls; and two live baby kittens for you and your older cousin.
This picture summarizes it all.
No need for adult intervention. The four of you easily take care of yourselves in an environment like this.
All day long.
And to think, you all still haven’t even received your Christmas gifts yet!