I’ve been following the Alien story you’re writing rn, and this gave me some ideas. Have you thought writing about a brain parasyte which induces lust in it’s host and makes them extremly potent, while the parasyte itself wants to use the host’s sperm to breed? It takes over your body and enlarges your testicles and your whole body becomes extremly sensitive, the urge of planting your seed in someone else making you loose touch with reality and becoming either consumed, or consuming others.;3