I am looking for a book about an earth woman kidnapped by reptilian aliens for breeding but she is not compatible with them. Instead of killing her they give her to other aliens that they are holding as slaves. I remember that they take her down to the aliens on a scary elevator that travels very fast. And that the alien slaves may have fought for her. She does not understand the languages. I think that the Hero takes her ...maybe rapes her... I know...that is awful... any help would be appreciated. Another scene in the book where they go to get food and the h sees another female who's "protector" uses her to sell and she is being raped very publicly.