rosemary.
They are second cousins
your auntie.. your sisters father is your dad..your dads brother is your uncle..your uncles daughter is your cousin and your cousins mother is your auntie:)!
Your first cousin's nephew's daughter is your first cousin twice removed.
Your child and your sister's daughter are first cousins. Your grand child and your sister's daughter are first cousins, once removed.
Your daughter and your sister's child are first cousins. Your daughter and your sister's grandchild are first cousins, once removed.
Your brother or sister's daughter is called 'your niece.'
First cousins once removed.
Yes you can marry her. She has no blood relation to you. She is just the niece of your brother's wife from her side. It is no different than if two cousins married two women who were sisters.
No. The daughter of your first cousin is your first cousin, once removed. The daughter of your second cousin is your second cousin, once removed. First cousins share grandparents. Second cousins share a great-grandparent; but not grandparents. Your niece is the daughter of your brother or sister. Brothers and sisters share parents.
He cheated on her with her sisters best friends sisters cousins daughter in-law
No they are not brother and sisters they are only cousins
Some exact nouns for two children are sisters, brothers, brother and sister, cousins, sons, daughters, son and daughter, grandchildren, grandsons, granddaughters, etc.