fake.. any doctor you talk to, medical site or even wikipedia has the science behind ejaculations. Why we have them (as if we didn't know!), where the semen is made, why the semen is made, how much semen is made, and what it is made of. Showing that for it's purpose, it's not needed in large amounts and any large amount would make sex messy, repulsive. and less efficient and enjoyable.. Semen is for carrying and feeding sperm to the egg. Not for cumshots. These fakes are just that. Physically Impossible.
But i'll admit maybe these sites exist is because even though we know they are fake some of us get turned on somehow anyways.. there is one scene on Cumshot Surprise that I love. It is Eden Adams, my fave.. first off her outfit is sooo cute and hot (cute blue top, cute white shorts, cute white striped tube socks) and she is cute and hot. The pics of her blond hotness stripping out of it was hot. So it had a lot going for it from the start. But for whatever reason seeing her get her whole face covered in goo, even fake goo while getting rammed turned me on. Just the fact that she let it ooze all over face, drip down her nose and cheeks, run into her open mouth, and glob in her messy hair. Letting herself get all messed up and sweaty and gooey. And acting as if simply having it on her skin was making her cum herself. I have a thing for girls all gooey, whether it's milk, whipped cream, chocolate syrup, fake cum, etc.. It was fake but it got me going! Don't know why.. guess I have fetish.