Spoiler for Zan Sayonara Zetsubou Sensei x Bakemonogatari crossover parody:
So basically once I saw this I was like, "How did I not notice the similarity between the last scene in the Zan SZS OP and the Koyomi-catches-Hitagi scene in ep1 of Bake?"
Uh, Fuura here is basically quoting or paraphrasing Senjougahara, "You've realized it, haven't you? I have no weight," "Based on my body type, I should be 40 kilos, but in reality I weigh 5," "It happened in middle school, before I entered high school," "I encountered a crab," etc.
Then the conversation starts to become different... if my uber dictionary skills serve me, Itoshiki-sensei is saying he wants to help Fuura out of pity, and instead she goes off on one of her optimistic bright-side-of-things speeches, saying how girls like weighing less anyway, and how she can almost fly, being so light. And then of course in the last frame...
Hey, anyone notice how Kanbaru's bloomers (sports shorts, whatever they're called) sort of mirror Senjougahara's zettai ryouiki?