Different states have different laws regarding whether first cousins can marry or not. As to having children by first cousins with each other assuming the child results from consensual activity, having the child in an of itself is not illegal in the majority of the states if not all in this country.

Is it illegal to reproduce with your cousin?

Scientifically speaking, procreating with your cousin isnt that risky. For most Americans, however, marriage between cousins is at best a punchline, at worst a taboo. In many states, it is illegal for first cousins to get married. The objections are ostensibly based on the risk of genetic problems.

What is it called when you have a kid with your cousin?

Children of your cousin are actually called your “first cousins once removed.” So if youre wondering what relationship your cousins child is to you, thats it — your first cousin once-removed! Your cousins child is NOT your second cousin as is commonly believed.

What is my dads cousin to me?

Therefore you and your dads 1st cousins are 1st cousins once removed. They are the generation before yours and you are their next generation. Notice that your dads 1st cousins are simply kids of his uncles and aunts, so all 1st cousins share the same grandparents.