Reading Seitokai no Ichizon (manga).
But it's harder than the anime because Ken (the guy), Kurimu (the not so loli anymore president) and Minatsu (sports type) look too much alike, and sometimes from the angle of view it can be impossible to tell.
Chizuru (black hair) and Mafuyu (boys love) normally are ok, but I think there have been exception even with them (IMG:[
invalid]
style_emoticons/default/wacko.gif)