Hey this goes back to about 2000, we up north visiting family and friends, staying with her sis and husband who just go terminated from job but with super severance.

We go to breakfast this one AM with friends, get back to house about 11:00, BIL sitting in FR watching news on TV, sis got late invite to play golf and would not be home till about 3. I sit in recliner, wife sits on couch with him. Now he is a horny bastard just like me and has always admired my wife's body and I had showed pics to him of her naked.
Somehow talk goes to Blood pressure medication he just started to take. My blunt wife says to him how is it affecting you sex life? Can you still get it hard? He says yes, she reaches over and rubs his dick through pants, he is like what are you doing? I know where this is going, she says let me see, unzips his fly reaching for his dick. He says to me, are you OK with this? I say she big girl. My wife now in his shorts rubbing him and he is hard, she tells him to drop his pants, he says no, I can't do this in front of Jay. She says well lets go upstairs. Off they go!

He comes down after about 20 minutes and says to me she is soooo hot, I say I know, he is raving about it and asking how I could let her do that to him. I tell him he not first, we have open marriage. Now 10 minutes gone by, she comes walking down stairs to FR naked saying I think our BIL likes to see me naked, he asked me to take clothes off. I laugh, she says ok your turn honey to me kneels in front of me taking my pants down and goes to work on my cock, BIL watching the show! I cum, she cleans me up and says I need to brush teeth and get dressed. My BIL was in shock. Since that time she has sucked him a few more times and fucked him also! About 5 years later we took a motor home trip and invited them to go on 4 week trip that lasted 6 weeks. That is another funny story!