To Seduce an Earl by Lori Brighton
I first described this novel as sort of a "hooker with a heart of gold" but the "hooker" is man, which takes place in the regency/Victorian era in London. And I have to say I haven't read a regency romance like this before, it was refreshing reading a new plot (which was very steamy at times) in this genre (well new, in regard to the male hooker thing).
The novel quickly pulls you into this world where beautiful Alex (he even has adorable dimples) is a whore in a brothel for women. He specializes in virgins, who want to be prepared and able to seduce their future husbands, but dear Alex doesn't like his job. He's a prisoner in "gilded cage" owned by Lady Lavender, the madam of the brothel.
Now meet Grace, who is accidentally, on purpose, sent to the brothel under the guise she would find help discovering a hidden treasure. Alex is tasked with teaching her the ways of the boudoir, but all Grace wants to know is where is the treasure book. It takes a while for Grace to figure out what's going on (Alex has to get completely nude for it to sink in) and she leaves... but that brief meeting sparked something in the pair.
The novel follows Alex's attempts to escape from his prison and Grace's desire to provide for her sickly mother and little sister. It was a compelling story which at times you won't want to put the book down because you eagerly want to know how it will end.
I have to warn you, I found this novel quite erotic, but not enough to classify it as erotica, but certainly for the 18+ crowd.