"There has been a long tradition of erotic painting in the East. Japan, China, India, Persia and other lands produced copious quantities of art celebrating the human faculty of love. The works depict love between men and women as well as same-sex love. One of the most famous ancient sex manuals was the Kama Sutra, written by Vātsyāyana in India during the first few centuries CE. Another notable treatise on human sexuality is The Perfumed Garden by the Tunisian Muhammad ibn Muhammad al-Nafzawi, dating to the fifteenth century

In Japan, the erotic art found its greatest flowering in the medium of the woodblock prints. The style is known as shunga (spring pictures?) and some of its classic practitioners (e.g. Harunobu, Utamaro) produced a large number of works. Painted hand scrolls were also very popular. Shunga appeared in the 13th century and continued to grow in popularity despite occasional attempts to suppress them, the first of which was a ban on erotic books known as kōshokubon issued by the Tokugawa shogunate in Kyōhō (1722). Shunga only ceased to be produced in the 19th century when photography was invented. The Chinese tradition of the erotic was also extensive, with examples of the art dating back as far as the Yuan Dynasty (1271–1368). The erotic art of China reached its peak during the latter part of the Ming Dynasty (1368–1644). In both China and Japan, eroticism played a prominent role in the development of the novel. The Tale of Genji, the work by an 11th-century Japanese noblewoman that is often called "the world's first novel," traces the many affairs of its hero in discreet but carnal language. From 16th-century China, the still more explicit novel The Plum in the Golden Vase has been called one of the four great classical novels of Chinese literature. The Tale of Genji has been celebrated in Japan since it was written, but The Plum in the Golden Vase was suppressed as pornography for much of its history, and replaced on the list of four classics." :Wikipedia.