The tight race between Hollywood’s pubescent panties has been neck-and-neck for a while. First, Hilary Duff and Lindsay Lohan were fighting to mount Aaron Carter’s jock. Then the bitch-fight turned all business.

Lohan’s “”Mean Girls”” somehow grabbed the hipster crowd – every ginger snap, fat kid and dykish punkette identified with the morality story’s caricatures. Meanwhile, Duff was reaping the Disney demographic with her “”Lizzie McGuire”” series and its offshoot film. The two bimbos even held an eating-disorder contest, though Lohan was the only partier branded a cokehead.

So this year, with both starlets releasing feather-brained bubblegum flicks, the pressure is on to see which floozy finally ends up on top.

If you’re measuring by tit value, the Duff sisters’ “”Material Girls”” is a shoo-in: Hilary partners with Haylie to win back the family fortune by entering the nine-to-five cycle. That means two hot sets for the film, while Lohan thought her own sagged-out duo could liven the drab “”Just My Luck.””

It’s an even bigger shame for Lohan, since her previously glorious rack looks really worn down as of late – I guess Hollywood (a.k.a. nervous breakdowns and cocaine binges) gets to even the best of us.

But let’s be real. No college-age filmgoer watches these movies to hear its bitches caw about problems that should be left to the tween cohort. It’s all so disingenuous: real-life Hilary obviously got her cherry popped by rocker Joel Madden, yet in “”Material Girls,”” Hilary’s Tanzie frets over junior dating problems. Throw in some more grating humor by Haylie, and that’s a double date you’d want to bring a gun to. But if it’s onscreen, you can just turn the volume off.

Of course, if you’re a guy, it won’t be a burden to watch these films on mute, as long as it’s in the dark too, and with lotion. But sorry, there isn’t any sister-on-sister fountain action, a la “”Our Lips Are Sealed.”” Oh, cock teases.

Honorable mention: “”High School Musical””