I keep this short and informal, but if anyone wants to know in deep slutty details just PM me.
My wife and me met through my best friend some years ago. I know him from college, but my wife and him knew each other since childhood. She’s a bit younger, we are the same age.
I didn’t know how much of a turn on it is for me to show off pics of my wife, back then still my girlfriend. And I didn’t know that she likes that also. We found out through my best friend. She told me she had send him some nudes before we got together. Nothing special, just erotic shots without much details. When she showed me the pics I instantly got a boner and she had to admit she still finds it hot to show/sends nudes to him or strangers. We started that evening to tease him with some nudes through WhatsApp and do that from time to time still. Of course we all love it.
When we now meet with him, which isn’t that often anymore, as he sadly lives in different city now, we all get naked pretty quickly and masturbate together. We tried other stuff, like oral and he watching us having sex, but still the best is all of us naked rubbing our genitals.