Wife and best friend

My wife and I went bowling with our best friends this past winter, just to pass some time. My wife, who is quite shy, looked incredible that night. (In retrospect, she probably dressed so well for my friend Tony)

As the game wore on, I noticed that each time my tight bodied wife would throw,he would watch her and stare at her perfect ass. She was wearing tight jeans, and she has the body of a 30 year old.

I purposely went to speak to him each time it was her turn. He was so horny, he would stop and stare, with me right beside him!

That night, as we lay in bed, I told my wife what was happening. She played it all down at first, but then I began to finger her and get her relaxed. When she got really horny, she admitted that she had wanted my friend from the day she first saw him. She was saying things like "I can't wait to see his cock", or "he knows it's only a matter of time before he fucks my little pussy".

That night I fucked her, and made her pretend I was him. She was so wet, and came so hard. So did I actually.

Since then, we fantasize about little ways she can tease him when we are together. I was wondering if anyone had any erotic ideas. She is shy, so any ideas that are blatant won't be used.