Letter to My wife

I am looking for a letter I can send to my wife telling her she should try fucking other men, I want it to be like it was written by a friend of hers who has done it and tells her how great it is for her husband to watch and take part. But I have searched everywhere and have had no luck. I am not a very good letter writer. Anyone have ideas where I could find one?

Send her a story where this happens. Let her know that both of you would benefit if she fucked someone. That's how we started and we both love it.