At our most primal, what do we really need to have a good time? We could probably narrow it down to three: breasts, beer, and barbeque. Before you leave this frat party completely disgusted, this is San Francisco, so of course there's a philanthropy aspect to all the, uh, titillation.The 12th Annual Breastfest Beer Festival brings 60 breweries together to raise money and awareness for the Charlotte Maxwell Complementary Clinic, a nonprofit clinic offering alternative medical treatments for low-income women diagnosed with cancer. (Health care plans rarely cover alternative treatments like acupuncture, Chinese and Western herbs, and social services.) If there's an easier way to help cure cancer than by knocking back a couple cold ones, we don't know of it. In addition to booze and boobs, Breastfest also offers local food and numerous Bay Area musicians, including rock cover band Metal Shop and DJ Von. If you'd call yourself a Beer Guzzler 4 Breasts (there's that frat boy again), drink up!