I have a story a family with their only son go to Mexico and over dinner they drink too much. So with all the alcohol comes risque topics one of them being MMF threesomes so when they all confess that they've never had one they make a decision. They tried it once and for the rest of the two weeks vacation they continued again, and again, and again and they decided that they liked it very much. I'm thinking about calling it polyamorous parents or something like that. It's an interesting story.