LOOKING FOR A STORY OF ROMANCE BETWEEN A SUB AND HER MASTER.
Here's a nice one to start the ball rolling:
'Here's the Thing...' by Tedbiker
MWTB's Tired of being the nice guy. Don't let the title fool you,,,she's better at being the sub than he is the master...
When you say 'slave' are you talking about the submissive person in a relationship, or a person 'owned' by another, as in the pre-Civil War South in the USA?
If it is being owned, Uncle Jim's 'Slave Girl' stories almost all feature a romantic relationship.
How about "The Collar Around the Heart" by Old Softy
Petgirl is also really good.
"The Collar Around the Heart" by Old Softy