Senator Hillary Clinton and former Attorney General Janet Reno
were having one of those girl-to-girl talks, and Hillary said to
Janet, "You're lucky that you don't have to put up with men seeking
sex with you. I have to put up with Bill, and there is no telling
where he was last."

Janet responded, "Just because I am aesthetically challenged
(that's 'politically correct' for ugly as a mud fence) does not mean
I don't have to fight off occasional unwelcome advances."

Hillary asks, "Well, how do you deal with the problem?"

Janet: "Whenever I feel that a guy is getting ready to make a pass
at me, I muster all my might, tense, and squeeze to break wind as loud
and hard as I can."

That night, Bill was already in bed with the lights out when
Hillary slips into bed. She could hear him start to stir, and knew
that he would be wanting some action. She had been saving gas all day
long and was ready for him. She tenses up her butt cheeks and forces
out the most disgusting sound you could imagine.

Bill rolled over and said, "Janet, is that you?"

Oh goody, a fart joke.
This is similar to an old one that referred to Wilt Chamberlain. It was a pretty lame joke, so I won't repeat it. Maybe some other readers remember it.

There's a version with LBJ, Lady Bird, and Bubba Smith also.

And a version with Jimmy/Mrs Carter and Jim Brown