Unfortunately, HowStuffWorks forgot to include this.
It is funny, but not attractive for man. A female's mouth is needed; otherwise, use it in the lady's room.
A genuine reason for the sale. Straightforward and honest. If our politicians can be that honest, our life surely would be far better.
Current or even previous generations cannot read it properly, as not so many girls hate Hitler any more. Anyway, at that time, girls were different from today's, and they would not want to be screwed by a politician unless there were no choices.
When picking up a girl, think whether she is clean. The problem is people will only think about this when it is too late.
Not only human beings are leaning, but also the animals. We learn how to kill animals, so, animals learn how to shit on us.