Sister-in-law jokes

What’s the difference between my sister-in-law and a driveway?

I pull out of the driveway.

A brother and a sister always got into fights. One day the brother tells the sister, "You're adopted!" The sister yells back, "At least they wanted me!"

What's the difference between your girlfriend and sister? Nothing if you're from Alabama.

My sister's boyfriend is mad at me because I fucked his girl.

I told my sister I was into incest. She took it really hard. 😉😏

Guys, my sister's pregnant!

I'm finally a dad!