If you do everything correctly, as in this video, then after this practice everything works even better than before. :)
My dream is for my beloved woman to do with me exactly the same as in this video. Although we are already close to it.
This makes sense. After getting ballbusted, the ejaculation is 5x the normal. I think it has something to do with coming so close to losing your balls, so the release is that much more exhilarating.