Talk:Incubus/@comment-29602226-20170326071950/@comment-10429980-20170326140639

The atmosphere of a mamono realm is also enough to transform a man into an incubus over time. That said, I don't see any evidence prisoner fruit can turn a man into an incubus on its own. According to the prisoner fruit article here it just makes the man's energy more attractive to monsters.

Even human women aren't transformed directly by  the fruit, they have to have sex with a man after consuming it routinely for a while.