What’s wrong with sex?
Nothing; it’s wonderful: “The younger women melt men’s hearts with rouge and powder and songs and smiles... Ah! ... a tryst in a boat on the waves equals a lifetime of delightful encounters.”
Thus the courtier-poet Oe Yukitoki (955-1010) celebrated the asobi (women of pleasure) of his day. Their boats plied the rivers of the port towns, and poets paid them homage.