I think it’s Leda and Zeus the Swan. Beautiful picture!
Bestiality fantasies are not a special turn-on for me personally; if a story otherwise interests me I don’t mind if it contains some bestiality elements. I did however once read a book with a bestiality theme which I found interesting and which I would like to recommend. It’s not primarily a sex story, it’s mostly about personal change by means of a radical change of scenery.
Marian Engel: Bear.
“After five years buried like a mole amid the decaying maps and manuscripts of an historical institute, Lou is given a welcome field assignment: to catalogue a nineteenth-century library, improbably located in an octagonal house on a remote island in northern Ontario. Eager to reconstruct the estate’s curious history, she is unprepared for her discovery that the island has one other inhabitant: a bear.
Lou’s imagination is soon overtaken by the estate’s historical occupants, whose fascination with bear lore becomes her own. Irresistibly, Lou is led along a path of emotional and sexual self-discovery, as she explores the limits of her own animal nature through her bizarre and healing relationship with the bear.”
This novel won the Canadian Governor General's Award in 1976.