Sex At Dawn by Christopher Ryan and Caclida Jetha.

A friend invited me into his open marriage.

Well, me and a bunch of our other female friends. Plus other women I don’t know.

I declined but he’s persistant. It’s a personality trait of his.

He sent a link quoting Christopher Ryan, author of “Sex at Dawn,” who said,

We assume monogamy is natural and preferable. But (controversial) evidence says “maybe not.” If monogamy isn’t necessarily natural, then we can stop shaming and discriminating against non-monogamous behavior.

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