A knock at the door

Homer hears a knock at the door. "That's strange most people use the door bell."
As he gets up to aswer it the women change places.
Patty was now licking Lisa, while Lisa was licking Selma. Selma was licking Marge and Marge was licking Patty.
Homer stepped out of the room and he heard Bard say "Aye carumba?"
Homer opened the front door. Standing there was his cousin Jessica Simpson. She was in tears "Why does every one laugth at me and why wont people tell me is tuna chicken or fish?"
"I don't know people refuse to tell me if mutton is a bird or some kind of rodent. So cousin why don't you come and we can ask Lisa when she is not to buissy." Asked Homer
Jessica and Homer walked back to the lounge and sat down.
The women were still licking each other out. But now Bart was rooting his mothers arse.
Jessica just sat there and watched. Homer looked at her and said "Aren't you going to ask about what is going on?"
Jessica smiled at Homer and shook her head "No I once stayed at Madonna's before she became a mother stuff like this went on all the time."