Happy to share !

My reactions vary on the size of the sound, how deeply it is inserted, and whether or not the Domme has been kind enough to use any lubricant.

If no or little lube has been used, the sound does sting when it is first inserted. Once in, the sound does create a pleasant sensation as the Domme slides it up and down the uretha. Once stretched a bit, the sensation starts to lessen. I think that's why I love it when a Domme goes through an entire set of increasingly thicker sounds, recreating and increasing that sensation of discomfort followed by what I can only describe as jolts of erotic pleasure from the nerves in the uretha.

As for depth, deeper is better to a point. I like it deep and slow. When the sound slides down slowly, to depth that is just short of painfully uncomfortable, and then just as slowly withdrawn ALMOST out of the head of the cock, the feeling really is very pleasurable.

Wash, rinse repeat!

Although I have never been allowed to cum that way, I do believe that it would be possible to do so.

Thanks for asking a great question!