Arielle Lane's F'N Machine continues with this massive set of updates. In Pt. IV, you'll see all of the content I shot of Arielle using the Machine while in doggy style position. You'll footage from our 8K camera, our slow-motion 4K camera and extreme close-ups thanks to our 4K iPhone. Please note that some camera shake was left in this video as not to disturb the flow of Arielle's experience. If your a booty lover, get ready for something special! This is a 3840x2160p 4K MP4 video.