Not originally intended as erotic, but painted realistically in the eariest, liberal era of the Renaissance. Covered with fig leaves a couple of centuries later by a more conservative Medici, and now restored.
Similarly some of the figures on Michelangelo's Sistine Chapel were later cover with fig leaves, some have been restored and others retained as some of the artists painting the fig leaves were also famous.
Chinese erotic art tradition, discussion of pillow books as marital aids, hand scrolls, balance between depictions of same-sex and opposite-sex relationships.Haiduc