(Sorry for my poor English. This scene inspired me:
https://m.youtube.com/watch?v=HbK-KvJpH9U )

"Now I'm asking for a volunteer for the last show!" announced the world-famous magician.
Eleven-year-old Michael jumped up from his chair and raised his hand. His father, sitting next to him, tried to pull him back, but the boy was too eager.
The magician's eyes scanned the audience, then held out his hand.
"The boy in the blue shirt in the fifth row! Please come on stage!" he told.
Michael couldn't believe how lucky he was. He grabbed his father's hand and pulled him up to the podium.
"Hello! What's your name?" asked the magician.
"Michael"
"Well, Michael… Do you know that a painful death awaits you?
"Yes!"
"A kind, brave and very enthusiastic boy! Won't you miss him?" the magician asked the father.
"He will be missed, but his greatest wish was to stand here on the stage. I can't do anything about it."
"Then let's not waste time! Ladies and gentlemen! Among the botched magic tricks are…. Table of Death!"
Michael's heart skipped a beat as the helpers pushed the device onto the stage. The boy's body was covered in cold sweat and he was briefly seized with fear. But the fear quickly gave way to some strange excitement. He felt a tingle in his groin and his penis began to harden.
"Do you have a last wish?" asked the magician.
The boy thought, then answered:
"I would like dad to undress me and help tie me down to the table!"
"As you wish!"
The boy raised his arms. His father stepped behind him and took off his shirt. Micheal sighed as he felt the cool air on his hard nipples. He unbuttoned his pants and let his father pull them down to his ankles. His erect penis lifted his underpants. His father also pulled it off and the thin young cock sprang up.
The audience gasped at the sight of the exposed and excited virgin body. The father stood proudly behind him and reached forward to caress his son's nipples.
"Aaahhh" moaned the boy and blushed.