The problem is, if your partner expects a monogamous relationship, the "side chick" is first and foremost a sign that you are not a serious person and don't deserve a "main chick."

I can see advantages to the multiple partners situation. A woman who stays home to take care of a kid might not be in a sexy mood. I never had kids, but it looks to me like raising a child is basically hell on Earth.

Also, since the reverse of this is true and men tend to take their wives for granted, maybe after washing his clothes and cleaning up after him all day, mama could use a little strange too.

But, let's be honest: multiple partner relationships rarely work.

In the end, the truth is what it always is: be open, honest, and live up to whatever vows you made, or you are a piece of $#!+ who deserves to be alone.