The inseparable French photographer-painter duo known by their first names, Pierre and Gilles, have been creating over-the-top portraits of sex kittens, mythological Greek gods, brawny athletes, bare-chested sailors, street urchins, pop celebrities, erotic Roman Catholic saints and heavenly goddesses since the late ’60s. They sit down with Y-Jean Mun-Delsalle to discuss their ingenious technique and their insatiable attraction to religious themes.