Defiling the Priestess - Seraphina's Erotic Adventures, #1

Seraphina is a virginal priestess in service to the moon goddess. She must remain pure and innocent, untouched by man or desire. She seeks to save the land from a horrible curse. Dark magic has blighted the land, killing the crops. The people are terrorized by hideous monsters. One night, she dreams of a dark and beautiful man attempting to seduce her. She rebukes him but wakes to three hideous gargoyles in her bedroom, intent on defiling the beautiful, virginal priestess.
As her body betrays her, she vows to destroy the sorcerer who sent them.