Necrorare

Also known in short as NCR a subgenre of neterare(NTR) where the protagonist (mainly a necromancer) kills his love rival and fucks his lover while also reviving him as an undead and making him watch his lover get fucked by the protagonist.

An example of a necrorare:
Cinderella and Prince Charming get married and live happily ever after... Or did they? I am a devilishly handsome warlock who got smitten by Cinderella but ever since she got married to that weakling, Charming, I was heated up with jealousy. I knew despite my striking good looks she will never fall for an evil man like me. So I waited for a chance until I saw Prince Charming walking in the woods. I then approached him and said, 'your end comes now charming and Cinderella is mine". Charming shouted, " not as long as I liv..." A bolt of magic just hit him and he died. I then resurrected him as a zombie. Then I sneaked into the palace into Cinderella' s chambers. I then used my magic and made all her clothes disappear. Cinderella was shocked and surprised. I casually said," I will make you mine". Cinderella resisted but I looked below and sneered at her that she is getting wet at my sight and called her a horny slut. Cinderella asked where she is Charming and I showed her zombie Charming as my servant. I then coerced her into having sex in the bed while zombie Charming watches. She agreed. I fucked her hard in her wet pussy that she craved for my BWC. I then kissed heron the lips while she gave me a hand job and I sucked her tits. Zombie Charming was just standing in the spot watching me fuck his wife. And then I and Cinderella lived happily ever after.
The end.