Everything you know about sex is true.

P.P.S. - Prostitutes Protective Society (1966) (imdb.com). Via Fleshbot

Big Sister is an upscale brothel in Prague. After having signed a release form accepting the establishment's terms and conditions, the clients' sexual adventures are recorded and broadcast live for the website's tens of thousands subscribers. Guests are afforded the chance to become instant cyber porn stars.

Hana Jakrlova's series of photographs documents the exploits of mistresses turned actresses and their clients in search for their moment of internet glory.

Photographer Patric Fouads had a tour of the brothels in Germany and published a book documenting his discoveries.

Stern has a Photo set.

Previously in our red-light district: Brothel offers special deals for virgins, Infertiles Madonnas, Pompei’s top brothel restored, Falkland Road, Prostitutes of Bombay, Upmarket house of pleasure, Unemployed offered brothel discount, etc.

Michael Grieve's No Love Lost is a visual project that inhabits sexual environments in contemporary Britain. People featured are active in the increasingly entwined and performative worlds of pornography, prostitution and stripping.

Porn shoot, Cuffley, UK, 2006, from No Love Lost by Michael Grieve

Via gmtPlus9.

We already knew that monkeys would pay for porn, now a research reveals that male macaques exchange grooming for the right to mate with females whose fur they have cleaned.

"I found that the amount of grooming a male performs on a female during a sexual interaction is related to the supply/demand ratio of females per male around the male-female pair at the time of the grooming," says research leader Michael Gumert.

Put another way, male monkeys - especially lower status ones - have to groom more to get more action when fewer females are around. Grooming in macaques involves using the teeth and hands to pick through the fur of the recipient to remove dirt, tangles and parasites. The activity often sexually excites the monkeys, particularly the males, so many scientists suspect it evolved into foreplay in humans.

The "grooming before sex" bouts lasted anywhere from a few seconds to a half hour or more, with the durations frequently linked to either the number of potential other partners or to the status of the groomer or recipient.

According to Gumert, "rank does not remove the market, it only skews it."

"Powerful individuals can take more and give less than low-ranked individuals can," he says, suggesting that such corruption of the fair trade ideal appears to be an inherent facet of primate social life that can apply to everything from monkey sex to human politics.

High-ranking females can also skew the system because, in the case of macaques, they demand more attention before they agree to mate.

Night Chicas is an anthropological portrait of various Guatemalan prostitutes.

The women show a creative receptivity to being photographed, allowing photographer Hans Neleman to focus on their physical attributes, and zones of intimacy, as if they were figures in a low budget pageant, filmed by a sophisticated artist passionate in his endeavor to document and flatter their bodies, regardless of whether they are beautiful or not. Zaftig, corpulent women dolled up in transparent teddies, their bellies stretching out their panties, assume the ageless poses enacted by pinups, actresses, dancers, and whores since the inception of art.

Via gmtPlus9.