Never tried it myself, but I see it in pornos a lot. But two things seem clear. Other interesting findings from the study? We also know the average volume of a single ejaculation is about a teaspoon. Girl gets results. I could tell a lot of people didn't believe her.
This is one patient motherfucker, let me tell you that.
Especially if you have a really hot female roommate within earshot. The facial has a relatively recent history. You can see more of his work at his eponymous site.