I think we would all agree a universal taboo would be necrophilia, yet it has gone on since the dawn of time.
Even in the days of ancient Egypt and the mummies, ones that had access to the dead, the embalmers and undertakers were known to act inappropriately with the deceased at times. Ones with such an unnatural interest in the dead often gravitated to the funeral industry to get access to the bodies. And as we all know, dead men, and women, tell no tales, so their crimes against the dearly departed are seldom found out.
In many places it is a crime to sexually violate human remains, ranging from a misdemeanor to a felony. There is also porn done with corpses called necrophilia pornography, which obviously was done without consent of the dead ones in the pictures.
Most necrophiliacs sought a partner that wouldn’t reject them, yeah, I think a dead person can’t really turn them down now, can they now…..Good Lord, there are some disturbed people out there.
Some have not been able to “let go” of a romantic partner and continued having sex with their corpse even after their death. It is a strange topic, and hard for me to understand that someone would do such a thing, yet it’s been going on for many centuries. As lonely as we might get, I think it’s best to stick to the living or at the very least our own hand or a blow up doll rather than defiling the dead.