PI is the only woman ive ever met (or heard about second hand) that has a cum fetish. None of my friends have that fetish, no one they know has that fetish. Nobody i've met online, nobody I know online knows anybody they've met online who has that fetish, except for PI.
Which I am both sad and elated over. Because it is so rare, it is unlikely my mate will enjoy it, but at least I know, it is humanly possible. Not just fiction.