Twice More, With Feeling

Twice More, with FeelingWhat's more than 11-1/2 feet tall, hotter than a firecracker, sultry as sin, able to spin glamour into gold and to flip coins with superb stomach muscles? Has to be the Barbi twins. Sprung from San Diego on an unsuspecting Hollywood three years ago, they're the 5'9" pair with identically incendiary looks and surprising talents. "We're a fantasy," says Shane, the rationalist. "We're a freak show," says Sia, the kidder. In 1989 they were belly dance...