Good stories of a husband and wife with established master/slave relationship.
Master/space relationship between a husband and wife.
I suppose Master/space is a typo, and you meant to say Master/Slave in the title and isn't looking for sci-fi? Or are you looking for a Master/slave relationship in a sci-fi story?
Unfortunately no I am not looking for sci-fi story. I am looking for a story regarding a husband and wife who has an established dom- sub relationship.
/16 "reasonable bounds" is all about that, although the husband is a little reluctant at first and there are a lot more women involved.
It's not quite husband and wife, but in 'Two and a Half Bitches' by FantasyLover, the teen MC in attempting to date the girl who will be come his fiancee winds up with her mother and sister as slaves, and later adds others as well.
https://storiesonline.net/s/15340/two-and-a-half-bitches