I've written an in-depth behind the scenes account of this 40 repetitions ass-to-mouth shoot for the http://cumtrainer.com/blog. This is one of the biggest videos I've ever done and there's a number of question I'd like to address to add to your enjoyment of this project. And it really was a PROJECT. It's been in the making for half a year or so and there's even a test-shoot you might prefer from a purely technical standpoint (called "Ass-to-Mouth Test Shoot"). However, getting to 40 rotations took quite a few logistical decision that made this whole thing even possible within a sensible runtime of roughly 30 minutes. We had most things figured out but somehow managed to forget the GoPro's battery life which adds a bit of drama at the end. There is actually a part 2 of this video which I'll have online in about a week's time. My guess is that the entire affair will end up running for about 35 minutes. Read the whole thing in my article on the http://cumtrainer.com/blog.