If you're going to be a Twihard, you've got to pick a side. Will you join the vamps on Team Edward or run with the pack on Team Jacob? Stephenie Meyer's vampire-human romance novels (and the subsequent films) spawned a vampire mania that has manifested itself in the form of screaming, crying, hyperventilating, white-painted, fake-fang-wearing fans. Some favor the caring vampire Edward Cullen (Robert Pattinson), while others root for Jacob Black (Taylor Lautner), the underdog werewolf who has big muscles and rides motorbikes but somehow still doesn't get the girl. Whole families form tent cities for days outside premieres, hoping to catch a glimpse of the often shirtless Lautner or the brooding Brit Pattinson. Young girls dream of finding a "real" love like Bella (Kristen Stewart) and Edward's and gossip endlessly about the rumored ups and downs of the couple's real-life romance. While seeing gaggles of frenetic teen fans is nothing new, seeing grown women fight over life-sized Edward cutouts and obsess over 18-year-old Lautner's abdominal muscles comes as a bit of a surprise. Twimoms may have been introduced to the Twilight series by their daughters, but they have created a bloodthirsty fan group all their own.