Necrophilia phone sex it’s hotter when they’re dead. Give it a try. Like once rigor mortis sets in the cock will stay hard for up to eighteen hours. Now that is a boner that I can get on top of. Ha ha. After all what nasty evil bitch wouldn’t ride a hard fucking cock for hours. At the same time knowing that the guy will never get off.
All the better. At the same time when you fuck a cunt whore after they have most notably passed from these plains. That cunt gets tighter than a virgin doll that never has been penetrated.
For the most part you are going to have snuff sex knowing that you are going to be terminating the cunt whore or at the same time the useless dick. 
Pumping into that tight little hole that won’t stretch. You might as well be fucking a soda bottle. That is how small the hole will be. Tight just making you cum hard. Emptying your cock and balls into that fuck hole.
With this in mind you are going to want to have plenty of lotion available. After all fucking for hours, shooting lotion in will keep it moist.
Finally, you will have to decide will it be just rough pretend die going bad or will it be Murder phone sex Fantasies that are simply to die for.
In summary dead bodies getting fucked hard is excellent and only a misdemeanor. Dispose of it in the end. Prior fuck it hard for no one is caring and what happens; happens.