I am a fan of the machine from the princess bride, I like watching it work and how it affects the people attached to it. I imagine how Count Rugen may have used it before he died. Is there any erotic lit that involves the machine out there? So far I’ve come up with nothing.
Source: reddit.com/r/eroticliterature/comments/54x7c6/request_princess_bride_machine_erotica
You might want to look for Barbarella machine stories to tide yourself over. Similar concept but it kills its victims with pleasure.