CBT phone sex is exactly what you need. You haven’t been a good boy lately and need a bit of punishment.
Your balls will be wrapped in rope, criss-crossing under your balls, between them and around the shaft. Not tight, just enough to let the blood flow in, then I will cinch them off to keep the blood there, making your cock harder than even you have ever seen. I start with a lube hand, stroking your cock, getting you to grind your hips with need. Faster, slower, faster, slower and you are thrusting your hips with every stroke of my hand.
I place a wooden plank on bed and ask what you think it is. With no clue, I put the hole in the plank over your cock, untie you and let the blood flow to your balls.
I show you a racket ball with a rod into it and you look at it like I just pulled out a skewer. I jerk your cock off some more getting you super hard again. Then the real punishment begins, I bet you won’t be a bad boy after this. I start to hit your balls one at a time, left right left right suddenly your cock shoots a load. So much for a punishment.