law or son in law? Has anyone ever had sex with their aunt or had sex with their nephew?

Has anyone ever had sex with mother in law or had sex with their son in law?

How was it? How did it come about? Who initiated it? How is your relationship now? How old were both of you when it happened?

No a-hole posts. I don't care what you think about it. I am just curious and want to her from people who have experienced this.