These are themes that i do enjoy, when done right.
Idea 1. I'm making my way across the country, where I'm seen by either a wealthy, eccentric billionaire who recently lost his gothic companion, and has me snatched to take her place. Or taken by someone on the move who does the same thing to me.
Idea 2. I'm also travelling, only I'm snatched to become someones captive mermaid, either kept in a pool with my legs incased in a latex tail, or somehow given a real tail.
If any of these appeal to anyone, let me know.