Erotic mythology by Griffith H. Williams.
The mythologies of the world contain an amazing range of tales describing the consequences of carnal relations between humans and gods. From classical Greece to Ancient India, from aboriginal Australia to feudal Japan, these stories often result in human tragedy, but divine children. Akin to an adult version of Bullfinch's Mythology, this book is by turns romantic, funny, sexy, sad and sweet.
Prose, not poetry.