"Two farmlads and a blonde" joke

A pretty blonde woman is driving down a country road in her new sports car when something goes wrong with the car and it
breaks down. Luckily, she happens to be near a farm house.
She goes up to the farmhouse and knocks on the door. When the farmer answers, she says to him "Oh, it's Sunday night and
my car broke down! I don't know what to do! Can I stay here for the night until tomorrow when I can get some help?"
"Well," drawls the farmer, "You can stay here, but I don't want you messin' with my sons Jed and Luke."
She looks through the screen door and sees two young men standing behind the farmer. She judges them to be in their early
20's. "Okay," she says.
After they have gone to bed for the night the woman begins to get a little horny just thinking about the two boys in the room
next to her. So she quietly goes into their room and says, "Boys, how would you like for me to teach you the ways of the
world?" They say, "Huh?" She says, "The only thing is, I don't want to get pregnant, so you have to wear these rubbers." She
puts them on the boys, and the three of them go at it all night long.
40 years later Jed and Luke are sitting on the front porch, rocking back and forth.
Jed says, "Luke?"
Luke says, "Yeah, Jed?"
Jed says, "Remember that blonde woman that came by here about 40 years ago and showed us the ways of the world?"
"Yeah," says Luke. "I remember."
"Do you care if she gets pregnant?" asks Jed.
"Nope," says Luke, "I reckon not."
"Me neither," says Jed. "What the hell, let's take these things off!"