What does a hillbilly say when she loses her virginity? Stop Dad, you're crushing my cigarettes.
Forgive me, what are you trying to say here?
I am saying that hillbillies commit incest.
That joke seems to be based on stereotypes about incest in the south, not the reality of rural Southerners, and it would be hurtful to hear a joke like that about your community.  There have been some good books about Appalachia written in the last five years or so. You might find them interesting.