Mabel is the 12-year-old twin sister of Dipper Pines . Mabel is a buoyant and energetic optimist, who expresses herself through an assortment of extremely colorful knitted sweaters. Her outgoing, curious personality often helps Dipper solve mysteries. Mabel enjoys pre-teen novels and seeks romance. Despite what she sees as obscurity in Gravity Falls, Mabel stays optimistic. She once went out on a date with Lil Gideon . It is revealed in "Head Hunters" that Mabel has a hobby of doing arts and crafts, and is actually very good at it.