It started off a bit meh, not sure on the Hibbert thing though, seemed a little racist too me. The chicken pox thing was OK, perhaps a tad boring though and seeing Homer have it was a bit ew. It also needed a conclusion. Then we had the pizza and stomach joke, uggg that was horrible. I think that's the first time i've hated a joke that isn't a pain gag in ages. Despite this the first act was pretty funny. I thought Marge was characterized well. the second act was mixed, the whole Kirk and Lunanne getting back together was majorly undevolped. The whole Bart and Milhouse thing was nice, both in excellent character. The third act for me was probably the best. yes anouther Homer and Marge break up, but quite fun. The whole Bart falling into the river was really well done, and the trust me line from Marge was done well, seeing the whole thing was about trust. Not sure about Milhouse falling into the river. And yes he can swim (Bart of Darkness!)
Overall, It was mixed. the plot was a bit messed, the whole Kirk and Luanne thing was poorly done and could of done with some more time. Though the Bart and Milhouse parts were done really really well. A few bad jokes, though some good ones. B-/B(3/5). Though by mistake voted 4/5.