I guess one of the things related to the pregnancy fetish, and impossible for biological, health and physical reasons is the so-called cum inflation. Well, I'm not hiding it, it's very hot for me. Maybe too much of the hentai genre, but I remember that some Asian girl wanted to recreate it live by drinking a jar of cum, she gave up on the second one. Well, for now, such horny things must be left to the imagination, or in the future some realistic, interactive technological simulations