Pres. Clinton's agreement from 23/6

It's a joke at Pres. Clinton's expense. It's sexist. But why does this "Clinton agreement"from 23/6 make me laugh?

President Clinton signs extraordinary agreement to zip his pants for eight years

From the office of President-Elect Obama

To: Bill Clinton

1. No chicks.
2. Not even if she's hot.
3. Not even if there's no way that Hillary can find out.
4. Not even if Terry McAuliffe vouches for the chick.
5. Not even if the chick has access to Iran's nuclear codes.
6. Not even if Hillary says "it's cool," which we highly doubt.
7. No.
8. Mr. President, what part of "no" don't you understand? The "n" or the "o"?
9. Both? Christ.