There's more to the song: I think it's about twisted serial killers in general. He mentions Gilles De Rais and Dahmer who were both serial killers and cannibals. The song also hints at a demented childhood: his mother died while trying to abort him (sick ain't it?) and then his father just screwed whores. The narrator takes over and rapes virgins and does some sadistic this (cutting, stabbing, ect...) and then he goes back for more after they die. He admits it's sick, but he just has to do it to feel complete. That's the twisted nature of Cradle for you.
There's more to the song: I think it's about twisted serial killers in general. He mentions Gilles De Rais and Dahmer who were both serial killers and cannibals. The song also hints at a demented childhood: his mother died while trying to abort him (sick ain't it?) and then his father just screwed whores. The narrator takes over and rapes virgins and does some sadistic this (cutting, stabbing, ect...) and then he goes back for more after they die. He admits it's sick, but he just has to do it to feel complete. That's the twisted nature of Cradle for you.