chloroform
Step son or not regarding your mother's cousin that would make him your third cousin.
If she is your grandpa's step-niece, she would be your mom's step-cousin, and your second step-cousin.
Ask him or her.
No, Poe's wife, Virginia, was his cousin.
No, you share no ancestor with your cousin's stepbrother so you are not related. You could call that person your cousin if you were close or if he had been in the step-relationship from a very young age and was not asserting his different parentage.
His step-cousin is Ian Fleming.
Your sister's cousin is your cousin, too, unless you and your sister are really step siblings with different parents. Then your sister's cousin is not related to you.
There is no relation that is properly called a step cousin.
it is okay to date anyone who is not a "blood relative". Anyone who is a "Step..." anything is not a blood relative. For instance, it is okay to date your: Step Cousin, Step Second Cousin, Step Third Cousin, etc. it is even okay to date a step Brother or sister, however it is slightly looked down upon by most societies.
Probarbly joking
your half sisters cousin would be your cousin
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.