How about a little "play along with Me" ballbusting exercise? The Custom Request this clip was edited from was for a chastity slave but that doesn't mean you have to be in chastity to play along. Before tying up your balls I suggest you watch this video- http://www.behindkink.com/2014/05/22/quick-tie-cock-balls/ to make sure you do it safely. Then you can tie up your balls and smack them, squeeze them and punch them just like I demonstrate with a dildo. And like I instruct you in the video, make sure to say "Thank You Princess" after each blow!