The Internet is Very Informative

KRAMER: George, George, Get a Penthouse Forum.
GEORGE: I'm not getting a Penthouse Forum.
KRAMER: That will make great dinner party conversation. We'll read the letters at the dinner table.
GEORGE: Oh, that's nice.
KRAMER: Hey, did you ever read one of these?
GEORGE: It's not real. They're all made up.
KRAMER: Oh, it's real.
GEORGE: You know there is an unusual number of people in this country having sex with AMPUTEES!

If I've gauged internet porn correctly, and you'll excuse me for being confidant enough in presuming to be somewhat of an expert in the field so as to boast about my qualifications therein, there seems to be an unusual number of sons in this country who are catching their mothers cheating and then blackmailing the mothers into having sex with them in return for not telling their father.  And, of course, filming it and putting it online. Of course.