I kinda liked the beginning of this article, not so sure about the second half: Occupy Sexual Freedom. An excerpt:

Sympathy for Newt and Open Marriage
You know the narrative. Right-wing family-values Republican gets caught doing secular-liberal totally-not-family-values stuff, usually involving sex:
Cruising for manlove in an airport men's room.
Knocking up the maid.
Sending dirty emails to young male pages.
Hiring male hookers and smoking meth.
Asking wife #2 for an open marriage.
This kind of thing happens all the time. And it's always red meat for leftie media commentators.
Liberal pundits love to call fallen Republicans hypocrites. They point out that liberal politicians are often more heterosexual and monogamous than many so-called conservatives--and remain married to the same spouse for life.
Now it's Newt Gingrich's turn.

In defense of the "liberal pundits," I have to say that while liberals also engage in sexual misconduct, they're far less duplicitous about it....

Many years ago, I read a book titled Open Marriage. I thought it recommended that married people have friendships with the opposite sex while remaining sexually faithful to one's spouse. I think Newt's concept was somewhat different.
-Joe-