#4 Dipper and Mabel Pines (Gravity Falls)
Fraternal twins Dipper and Mabel Pines head to the beach to take a timeout from solving the boundless mysteries of Gravity Falls. Dipper is wearing a pair of red swimming trunks that reveals his tan lines from his everyday vest, t-shirt, and shorts. Mabel, meanwhile, is rocking a pink one-piece swimsuit that shows her tan lines from her regular outfit of sweater and skirt. And with her hair pulled up in a high ponytail, the tan marks from her long side-swept bangs are also laid bare for everyone to see.