I had been wanting to write an article on the artificial llama vagina for at least a year when the antics of two escaped llamas finally provided my opportunity. I sent off a pitch to the slate science editor, subject line: "You know you want my llama vagina story." She wrote back, agreeing that yes she sure did. How did I happen to be pining to write a llama vagina story? I saw an off mention of the artificial llama vagina in the methods section of a different paper I was working on (The Average Human Vagina I believe) and thought to myself, WHAT IS THAT? Once I found out I knew I had to share.