From the first frames in the video, you can see how, first with a bonger, then (09:42) with a white rubber hammer, then (15:01), the balls slowly swell from hand claps. It turns me on sexually. - ballbust_berlin
I recommend lubricating the balls well before this event, because the skin on them stretches and dries quickly. The hammer blow must penetrate into the depth and not remain on the surface! - ballbust_berlin
The guy often hits not in the balls, but in the humbler. It was necessary to fix not only the balls, but also me. But this was 2018, I was still inexperienced. - ballbust_berlin