Women are still convincingly faking orgasms, according to a new wide-ranging Indiana University survey of Americans’ sex habits, with 85 percent of men believing their female partners climaxed in their most recent sex act, but only 65 percent of women actually doing so. The study also notes that men are now giving oral sex almost as frequently as they get it. About 60 percent of men of all ages masturbate once a month, until they reach 70, when that figure declines to 30 percent. By contrast, half of women in their 20s masturbated in the past month, and just 20 percent of women in their 60s did. The popularity of anal sex continues to rise—about 20 to 25 percent of people in the 1990s had had anal sex, now that number is around 40 percent, and even higher for people in their 20s and 30s. Researchers say this figure highlights the need for more public health education, because anal sex poses a higher risk for bacteria, viral, and sexual infections. The readily available porn on the Internet may be fueling the change in sexual behavior, researchers said.