I was at a friend's place yesterday, and... There was a mother, father, three sons, and a daughter.
That night the mother and father started fucking each other. I yelled and told them there are innocent children in this house.
An hour later, they started up again. I walked to their room and they were asleep, so I looked in the brothers' room and all three brothers were fucking the sister.
I sighed at this. "Incest aside, you guys make a cute family." I started, "So Anna, when am I gonna have nieces and nephews?" They stopped instantly and went to sleep. "Thank you," I replied before walking back to my room they let me sleep in and I passed out for the rest of the night.