The only published item I am aware of dealing with the concept of skull fucking is William S. Burroughs' novel Naked Lunch. In the novel Burroughs describes an escaped crazy drilling a hole in the head of a person passing on the street, inserting his penis, then going to town. He also mentions that this must be done quckly after the person dies, or the brain will dry out, resulting in a rather uncomfortable material to be inserting your genitals in. | 
