Echoing the above : if you haven't seen Kyou Kara Maou, you really should.

Boy gets flushed down toilet into another world, discovers he's the new king of the demons. He is then aided, affianced to, and protected by an assortment of really attractive men. Also, drop bears are canon.

Makes for incredibly shiny crack right up till ep. 27, when it grows a plot. (and continues to be shiny, with angst included. ^.^)