The English language has no relationship term for the wife of your cousin's brother. You are not considered to be related to her.
Your wife's brother is your brother-in-law. His wife is your wife's sister-in-law, and she is also your sister-in-law.
We call "Mami" to moms brother's wife.
Shwe would be your sister-in-law.
Your sister-in-law.
Your brother's wife's cousins are not related to you and the English language has no special term for that. The same applies to the cousins of a stepbrother's wife.
Why would anyone want to sleep with their cousins wife? Are you perverted or what?
Your brother's wife would think of you as her brother-in-law and when wanting to get your attention will simply call you by your first name. If she is introducing you to someone she would say, 'This is my brother-in-law ____.'
A hoe.
That would probably be your cousin-in-law.
In genealogy terms she would be "spouse of your first cousin."
If you are close to your step-brother, or to his wife, you can call her your sister-in-law. If you are not close, you can call her your "step-brother's wife."
aunt
if your wife's brother is your brother in law, his wife is your sister in law