GFIII isn't my favorite partly because the rest of the gang wasn't in it and because Michael is so old and frail but to get back to the topic - besides the whole smoochy, make-out scene in the kitchen, the dumbest part is when they are in Italy and Michael tells her, he's your first cousin and she says, well I like him first.
How retarded is she? Why does she have to embarrass the family with a Jerry Springer episode? She does have great hair though.