Kaorin's devotion

The next of the girls to gain weight is none other then Kaorin. Having heard in conversation with Sakaki that she thinks one of Kaorin's plushies is cute because its fat and soft, she decided that if she were to be fat and soft too then she could be cute.

I think she's succeeded there

I also like Kimura sensai's reaction (he is by far the funniest character in the manga/anime)