There's just something about bouncing boobs that stirs naughty pubescent memories of catching a glimpse of teacher's cleavage as she leaned over to explain a math problem.

Well, Rack O Rama takes boob fantasy to anther dimension — the 3rd dimension — complete with screen-popping techniques that will have you groping air tits with your free hand. Thanks to red/blue technology and free 3D glasses included with the DVD, you'll see Christy Marks, Cindy Cupps, Janet Jade and Kylee Nash in all their enormity busting off your screen.

The sight gags are hokey ... very reminiscent of the paddle ball in the classic horror movie House of Wax (sorry Paris, not yours) ... but frankly, after the novelty wears off, it's more fun to watch the old fashioned way. The girls' boobs are just as big, they bounce around and tease each in their own unique setups, and in the end it's still the boobs — and not the gimmicks — that turn us on.

Retailing: Good boobs carry 3D gimmick in sure-to-rent DVD.