Like so many things in life, it's because of breasts.

Maisie Williams, the utter badass who plays Arya Stark, went on Jimmy Kimmel Live! last night to talk about the new season of Game of Thrones. During the interview, she discussed the awkwardness of watching the show with her family, including her nan — and how Maisie's mom handled the situation by pouring more gin in her grandma's glass every time boobs showed up on the screen. So, basically, Maisie's grandma plays a really good Game of Thrones drinking game.

Oh, and if you have any doubts that Maisie is indeed a badass (which you shouldn't), make sure you watch the part where Maisie talks about how even though she's right handed, she learned how to sword fight with her left hand because that's how Arya did it in the books.

Sources: People