yes you can because at 18 you are consider an adult and state law forbids it even with the mother's consent
Yes they can
Your mothers sisters Granddaughter is your second cousin
your grandpa
Not unless you are in a custody battle. It is only if you are going out of the country that you need consent
The relationship to you would be your cousin !
No, the only way is if it for medical reasons.
Yes but it should be a written consent and It also depends how old is "older"/
Only the legal guardian can give consent to a medical procedure. If she says no you can get a court order.
It means she is serious about the relationship
She is your third cousin.
no
Your mothers hairy vagina