The reason I said 'nothing' instead of saying 'just thinking' is because she then would have asked 'about what?'
At that point I would have had to explain that men are deep thinkers about various topics, which would lead to other questions.

Finally I pondered an age old question:
Is giving birth more painful than getting kicked in the nuts?
Women always maintain that giving birth is way more painful than a guy getting kicked in the nuts, but how could they "know"?

Well, after another beer, and some more heavy deductive thinking, I have come up with an answer to that question.

Getting kicked in the nuts is more painful than having a baby, and even though I obviously couldn't really "know", here is the reason for my conclusion.
A year or so after giving birth, a woman will often say, "It might be nice to have another child."
On the other hand, you never hear a guy say, "You know, I think I would like another kick in the nuts."

“I’ll call one of those men you see advertised in phone books for escorts and sensual massages.”

She found a full page ad for a guy calling himself Tender Tony – a very handsome man with assorted physical skills flexing in the photo.