Two Wives and One Husband isn’t so much an erotic love story as a family saga (with a lot of dirty parts.) It has been over three years since Jason married Jess, a pregnant teenager less than half his age, and she’s pregnant again. Their life is perfect except for one thing—they both have strong sexual feelings for Jess’s best friend, which would be fine if Jess didn’t feel so guilty and jealous. $2.99 on Kindle.