Horny Elves and a Moral Orc

Donovan is the last surviving orc, and he has made a vow to the Goddess: never sleep with an elf. A curse was placed to enforce it — if he breaks the vow, he dies. He has kept it for years. Then two elf sisters find him and decide they are going to have what they came for regardless of his feelings on the matter. An adult visual novel about Donovan's fight to stay alive against increasingly determined opposition.