Well, I'm not going to really be giving away any spoilers since the movie is the Japanese equivalent of watching softcore porn on Cinemax, but only two of the girls are running around in swimsuits when they are wearing them and not swapping spit with each other. The rest of the swimteam was killed off in like 5 minutes by the zombies. Real intimidating, eh? And yeah, the girls are hot.
While we're at it, a friend of mine recommended a J-Horror film to me that I never heard of and when I found it, downloaded it and burned it to a DVD to watch I nearly pissed myself watching it it was so stupidly funny. It was called Sexual Parasite: Killer Pussy. If you want a laugh, check that one out.