Your step-father's cousin is not related to you because you have no ancestors in common. However, if your step-father came into your life while you were very young, you may e treating him as your father and his cousins as yours. In that case you might consider that if he was your biological father, his first cousin would be your first cousin, once removed.
if they are the children of your brother, they would be your nephews and nieces - if they were her children before she married your brother, then step-nephew and step-nieces
They are your step-nieces/nephews because her children would be your step-siblings.
Well I've heard that a 'step cousin' is a step parent's nephews and nieces. Meaning if your father and mother got a divorice, your mother remarried to a man who is now your 'step dad' then his brother or sister's children are your 'step cousins'. Also, I believe to use it with my other 'cousin'. I believe step father or mother means a father or mother because of marriage, not a blood parent. So, I believe that when my aunt married my uncle, my uncle became my 'step uncle' or 'uncle by marriage' and his brother's or sister's children are now my 'step cousins' or 'cousins by marriage'. This may be incorrect but that is how I choose to describe my aunt's husband's brother/sister's kids. I like to be able to call them my cousins because I am so close to them!
Step son or not regarding your mother's cousin that would make him your third cousin.
it depends if its a step father or not. if it is a step father then ts completely legal. but if its his birth father then you cannot marry your cousin!!
Your great grandmother's step-father's cousin's are not related to you.
If she is your grandpa's step-niece, she would be your mom's step-cousin, and your second step-cousin.
Nothing because it is your step father and his cousin If your stepfather were in fact your father, the son of his First Cousin would be your Second Cousin. If you are close to your stepfather, or were formally adopted by him, you might call that person your Step-Second Cousin. If you really like your stepfather, or his cousin's son, and want to assert a relationship, you could even call him your Second Cousin.
Your mother's husband is your father or step-father. His brother-in-law is either the husband of his sister or the brother of your mother. * The brother of your mother is your uncle. * The husband of your father's sister is your uncle. * The husband of your step-father's sister is your step-uncle if you like him or if you are required to associate with him a lot. If you don't deal with him much, then you can consider him not to be related to you. So you have either an uncle, a step-uncle, or no relation.
First off, if your cousin and his "step-brother" have the same father, they are not step-brothers; they are half-brothers.Now, your cousin is your cousin (first cousin) because he or she is the child of a sibling of your parent. Perhaps your cousin's father married his sister-in-law after a death or divorce. If so, the cousin's half-brother is still your first cousin. Or perhaps your cousin's father married your aunt from the other side of the your family (a sister of your other parent). If the half-brother/step-brother is the child of your aunt, he is still your first cousin.In any case, it is OK to date your first cousin if you want to. The questions may arise in some, but not all groups and locations, if dating goes further and becomes sexual activity. Some jurisdictions and cultures find that to be improper; others do not.
Your cousin's child would be your cousin once removed. So your cousin's stepchild would be your step-cousin once removed.