I gave up calling my wife a nigger during sex for lent.
This makes me feel rather uneasy. Why do you call your wife names?
We are into BDSM so we call each other a lot of names during sex.
Offensive words can be hurtful, so to use them can hurt somebody that you care about. You should learn more about the meanings of words like nigger so that you can avoid using them.
This is ridiculous...
I think it is never appropriate to use the n word. Don't you want to have some respect for your wife?