A woman went to her doctor for advice. She told him that her husband had developed a penchant¹ for anal sex², and she was not sure that it was such a good idea.

The doctor asked, "Do you enjoy it?"

She said that she did. He asked, "Does it hurt you?"

She said that it didn't. The doctor then told her, "Well, then, there's no reason that you shouldn't practice anal sex, if that's what you like, so long as you take care not to get pregnant³."

The woman was mystified. She asked "You can get pregnant from anal sex?"

The doctor replied, "Of course. Where do you think lawyers come from?"