18 inch penis

Recently, my Partner and I had discussion regarding his past ex-girlfriend of; 10 years. Background of the, Ex-girlfriend. She’s was married to man of, 8 Years. She was married (Still married) While dating my partner. Her reasons for continuing the affair were; her husband penis size/taking advantage of her while passed out Or sleeping. She claims her husband has penis size of, 18 inches long. Which sounds like huge lie to me. I took tape measure to demonstrate 18 inches in length to my partner. He confirmed his ex-girlfriend showed him in ruler measurement of her husband penis size. I’ve never heard of, man having 18 inch long penis. Actually, truthfully having penis that long. Many years ago I saw documentary of, the man with largest penis in the world. The man in documentary penis size was, 18 inches long. They even showed his actual penis in the documentary. As well, documentary showed medical evidence of his penis size. In documentary, the man had a lot of issues sexually/preforming because, of the size. Basically, I don’t believe that her husband is 18 inches long. What’s your opinion?