I have done this before although its been a few years. Found it fun and exciting to wear during session as well as for a few hours leading up to the session.

I did some ballbusting with it on. We used a paddle for precise hits and it hurt a little more just with my balls having less of an escape route. We decided against kicks as its a little more violent and more opportunity to hurt her foot as well as me. But probably would have been fine.

All in all. Fun experience and would recommend.