My parents when I was a kid. They had a Black friend stay over & my Dad went to work. Pretty sure I heard my mom get fucked that night. My Sisters husband was overseas during Iraq. I heard his older brother was fucking her while he was video chatting. Actually I heard the same brother fucked my other sister during a night at the bar. My sisters were married to brothers. Also when we first got married, my Wife’s best friend from church was Cuckolding her husband openly. My Wife went out with her one night, the guy showed up & took them to his house. He took the friend in the bedroom & started fucking her. My Wife left. Maybe this helped plant the seeds for her. really there are quite a few.