Just read Devon cream. It is short but well written and a pretty good read with a couple hot sex scenes. If you are into the theme, then I definitely recommend to read it.
I have read Lotus in the Wild - Sutherland, Fae. It is a little unusual. The slave in this books enjoys being a slave, like it's just another type of profession. Still, even if he likes to be a slave, doesn't mean he is obedient ;). The setting is a little medieval, even a king shows up, so men are very stereotypical (for example even some pillows to make the room more comfortable are frowned upon) - tough fighter, defender…