I...have only ever seen one Ouran doujinshi, and it was kind of scarring. That was the first time I unwittingly downloaded porn, which implies that I do it wittingly all the time and I really don't, but it's a shock when you aren't prepared for it. Er. Anyway, for richer or poorer generally has answers to my Ouran-related woes, so poking around there may be successful for you.