This is an interesting move that pops up from time to time, but is rarely if ever showcased prominently in blowjob videos: The D Move. It's called that because of the similarity between the position of the hand and the uppercase letter D. The thumb stays straight along the underside of the penis while the rest of the hand curves over gently so the fingertips caress up and down the top and the cockhead makes contact with the palm. It's the perfect way to tease a well-slicked cock with fingertips, but using a bit more overall sensation from the other parts of the hand. Piper demonstrates many ways to include this technique as part of the blowjob.