That would be pretty nasty for the other person involved....assuming your version of sex includes another person, of course...
If they're into necrophilia there shouldn't be an issue
Which way do I want to die?
Something quick like a nuclear bomb dropped directly on my head, or a missle into my head, or three sticks of dynamite in my mouth to blow my head up real good.
Something that involves instant death and instant fragmentation on a particle level so that my brain has no time to register what the hell just happened..... or if there was going to be pain, even extreme pain, it would only last a fraction of a second before my head turned into a spilled bowel of macaroni & cheese with ketchup spread out all over the ground.
...... Or die peacefully in my sleep, whichever..... But I know the chances are more likely that I'll die a slow and horrible death that will be very painful and during which time, I'll have to watch my useless body rot away as I see my friends and family come visit me with expressions of pity and sadness.
Weee.... sounds like fun.