There are a lot of perks to being a part of the Twilight franchise -- a legion of adoring fans, invites to exclusive Hollywood parties, the opportunity to book more high-profile roles -- but Taylor Lautner says there is a downside, too.

"When I am traveling the world promoting the films, I say I am on vacation, but it's not really true, I guess," he tells the September issue of VMAN. "When I go to a beautiful city I spend the whole time in a hotel room and then I am back on a plane to the next place."

Because of his busy work schedule -- he next appears in this September's Abduction, opposite real-life girlfriend Lily Collins -- Lautner says he rarely finds time to kick back and relax.

"If I'm not filming, I'm promoting, and if it wasn't Twilight, it was a different movie, so it got really busy," he says. "I hang out with my friends, family, and kind of just -- I don't even know. It's like, when I am not filming, it seems like -- I don't even know what I do."

Though Twilight made him a household name, Lautner insists that he's not the reason millions of fans have camped out to see the films on opening night.

"It's definitely these characters we are playing. They are in love with Bella Swan, Edward Cullen, and Jacob Black," the humble 19-year-old tells VMAN. "I mean, they feel like they know them. We are just lucky enough to be playing them. But I definitely think it's the characters."