Free love societies stories (share your favorites!)

I’m a fan of stories set in worlds where sexuality is incredibly open, or even the focal point of society. Does anyone have any recommendations? This is what I know about.

You’ve got
A Perfect World by Al Steiner. very long, also about the geopolitics of Earth and Mars. Equal balance of power between sexes.
The Virus from McStories, where it’s scattered around. *warning, the premise is that all women become ultra-sexualized and sex-crazed, if that is or is not your thing*
Limerick on Mcstories. A lot of his stuff falls into the sex-based society thing, all of it that I can think of has male-dominated and bimbo aspects.

Source: reddit.com/r/eroticliterature/comments/4rk6fo/free_love_societies_stories_share_your_favorites