Limitless horror ideas! But you don't have to be!

I'm here again this time with specific ideas rather then a bunch of different ones. This time it is to do with horror or atleast horror related.  Now these ideas are long term and are also the short versions of the ideas rather then the long versions to save space in this post. All ideas don't have to be limitless as I can adjust to people's limits and such so don't worry if you aren't limitless. 

The first idea is based in the resident evil universe where the virus does spread through bites but also spreads through sexual intercourse as well. As those infected become increasingly sexual and either rape or hypnotise others to get them to preform intercourse with them. My character would be immune but also able to spread a different form of the virus. He's sort after by infected and humans alike for different reasons, as she trys to survive this world as well as sate his own sexual desires. 

Another idea I have is more of a general horror purpose, one where either includes multiple different horror related games, movies etc. This idea is where the horror characters were pulled into the real world for purpose for war, however there was sexual side affects. So instead they would sell them off to the public as dangerous sex slaves. However they don't expect what's to come when my character is able to train these creatures, rather then them trying to kill him. 

Third idea would be a more oc related idea, where its another apocalyptic setting however the virus is strictly passed on via sex. However this virus mutates bugs and creatures to also spread the virus as well as humans. My character would be a survivor who is immune to this virus fully, so for a virus who feeds of sexual fluids and intercourse, he's a highly prized item for them. As well as the humans who have less and less partners for their sexual endeavors.

Last idea is similar to the resident evil one however is set in the last of us universe. Most of the premise is the exact same as the resident evil rp but based in the last of universe.