Rape Puppet
Someone who is confined against their will in order to perform frequent violent sex.
Fritzl used his daughter as a rape puppet.
Puppet Rape
An act in which sex is forced upon a puppet, either in order to fulfill personal gratification, or to end the life of said puppet.
http://www.youtube.com/watch?v=-DD0pBgotC0
http://www.youtube.com/watch?v=-DD0pBgotC0
I'd say judging by the ruptured dorsal cavity, and the shattered interior ligaments, this was Puppet Rape.