I'm a little embarrassed to admit I have now seen BOTH of the 3-D 1970's hardcore porn movies (the other being "Hard Candy") that are currently making the rounds at the midnight movies. This is definitely the "best" of the two ("best" obviously being a very relative term here).
As a sex movie this isn't great. Only the lead, Serena, and, to a lesser extent, Leslee Bovee are partucularly attractive, and at times I actually felt sorry for the poor male actors who had to maintain arousal while being serviced by some of these skanks, I mean, girls. But if you want a porno for the sex, you're better off watching it at home with one hand on the fast-forward button and the other covered with Jergen's lotion than going to a midnight movie. The "comedy", unfortunately, is even worse than the sex--the "Harry Balls who?" joke wasn't funny the first time, and after about the twentieth time. . .
What I did like about this movie is that it contained two transgressive murder scenes. The second was more gory, but the first was more disturbing (albeit very silly)--the villain "Harry Balls" drowns an unfortunate woman in a big bowl of soup while having anal sex with her! Now I know some people claim you shouldn't mix real sex and fake violence because people might confuse the two (and you might have some kind of soup-dunking/anal-sex copycat murder). But to me that's like saying you shouldn't drink cold beer in a hot tub because you might start bathing in cold beer and/or drinking hot tub water. Even when they're in the same scene, real sex and fake violence are enjoyable, but for COMPLETE DIFFERENT REASONS. Besides, for me at least, I always get uncomfortable in movies where people are constantly having sex, but no one is getting killed or dying--it's like nature is out of balance or something. But if that's too weird for you, consider this: porno actors are typically terrible and their characters are very annoying, so any excuse to get rid of them after they "do their thing" is certainly justifiable.
Anyway, I wouldn't recommend this either as a porn film or a "comedy", but it might be worth seeing at a midnight movie (provided you sneak in without paying).
