Nympho Nelly & the Werewolf's Saber

Nelly has succubus blood and a curse. She must live for sexual intercourse, never truly being satisfied by the ones she samples along the way, until she meets the werewolf. Huge, terrifyingly feral and scary, he is the epitome of terror, until she looks at his crotch. Floppy, naked, and completely human, though scaled up and big, the werewolf's saber is a complete mismatch with his otherwise terrifying body.
If only he had a sheath to contain it, and a willing partner in crime to give him a terrifying image. Fortunately, with a little rope and her masochistic body, Nelly has the perfect plan to make him an absolute terror of the forest, while satisfying the persistent itch that makes her who she is.