I have a headache.

One of my single girlfriends is in a relatively new relationship. You remember. The fun zone.

"We have sex every night."
"Every night??"

I told another good friend of mine, who's married with three kids and also happens to be a guy. His response? "I don't even remember when that SOUNDED like a good idea."

Amen to that. A 2004 study, “American Sexual Behavior,” by the National Opinion Research Center at the University of Chicago found married couples have intercourse about 66 times a year.

So..how many of you are doing some calculations in your head right now?

A recent New York Times article discusses some recent books written on the topic of married sex (yep, just like military intelligence or smart bomb).

One couple wrote a book called "365 Nights." As in, 365 consecutive days of doing the horizontal mambo. Another couple went 101 days in a row of coitus non interruptus.

The idea was to reignite a sex life that had burned out. Instead of French Maid outfits or a trapeze on the ceiling, these couples decided the way to put the heat back into the marriage was by going whole hog, pardon the expression.

Kind of like when you're on the South Beach Diet too long and you decide to eat nothing but carbs - for a year.

Anyone else feel bloated?

I'm glad it worked for these couples, and I'm sure there are others out there. But it reminds me of when my husband and I were trying to conceive our children. We had to do it certain days and even at certain times, whether or not either of us was in the mood. The poor guy had to fly out to Arizona because IT'S TIME! IT'S TIME!

If my husband's penis could salute, it would have.

As stated by an expert in the article, happy marriages have more sex, but maybe it's more sex that helps make happy marriages.

It's something to ponder, next time your husband gives you the look.

Maybe I'll keep the Advil by the bedside.