I think I'm starting to get attracted to my cousin
Why are you attracted to your cousin?
Well, I'm attracted to most members of my family.
It's gross that you're attracted to your relatives. You should only be attracted to people outside of your family.
I'm also curious what it would be like doing it with my grandma, why not?
I can't believe you'd say that about your grandmother. It's just so wrong to be attracted to your family and I think you need some professional mental help.