Marguerite Nousville 
Spell — Erotic Short Story [EPUB ebook] 

A landowner is happily married to his young, round-faced wife, and they enjoy each other in bed every night. But he has never managed to forget the girl of his youth, and when he goes out hunting one night at the full moon, a witch calls for him in the fog. She has gathered juice and power from the goddess of the forest, and now she wants to share it with him.-