We included rough play in our Femdom lifestyle until menopause hit and most activity stopped.
In addition to spankings and pegging, ball punishment was included. There was hitting and kicking...all moderate without the danger of damage. Wife/Mistress would enjoy checking my "sack" after a session and seeing how red the skin got.
Most memorable was a period of a couple weeks when she had extra work that required lots of overtime. As a morning person, she preferred leaving at 5 AM and getting home by 5 PM. I was made to kneel in the open front door as she left. Turning around Mistress would deliver 4 or 5 kicks to "the boys". I was in full view of the neighborhood, but it was doubtful anyone was stirring. As she drove off, there was no doubt who was in charge in our home.
All though there is no play anymore, there is still a couple remnants. For instance, she just turned 82. We kept the tradition of the Birthday spanking. As her sub, I, of course, had to take her spanking. Damn, 82 is a lot. Monday I'll be expecting my 75.
Back to topic of balls. I'm still kept in panties. When dressing to go out, I have to stand before the wife for her approval of my panty selection. She then delivers three or four whack to my "package" as a reminder of who is still in charge. With a dull ache between my legs, I finish dressing and leave to run errands.