Clinical Study Of A Masturbator

I have always had such a devious fascination with the thought of a masturbating male being examined and studied, much like a test subject. This stems from an experience I had when I was much younger, in which an older boy I knew was touching his private parts and was caught by his mom and punished in front of me. We were playing some kind of game where he was put inside a big box, and we didn't realize that while he was in there he had pulled his pants down and was masturbating. His mom came in unexpectedly and she opened the box before he could pull his pants up. Seeing his mother scolding and punishing him after we knew that he was masturbating became a fixture in my mind. I now have deep rooted thoughts about the idea of an older male who willingly, yet apologetically allows a group of mothers and daughters to examine him as he is masturbating and as he openly shares this very personal and shameful part of himself. 

It's difficult for me to write a story about this happening, as I'm not really a writer, but I wonder if this kind of scenario resonates with anyone? I know it's a more taboo dynamic, but this is purely fantasy. The masturbator would be a fully grown adult male, who's masturbation was mostly triggered by his own feelings of shame, exposure, guilt and embarrassment. He's not a porn addict, as his primary fantasies are centered around being exposed and examined because of his life long masturbation. He feels nervous, yet he has been wanting to experience this for a long time. The mothers agree to this closed and monitored series of sessions, where their daughters will be encouraged to ask questions and learn about the experiences and thoughts which have caused this man to become devoured by masturbation, and witness his reactions, masturbation and ejaculation as a result. It would be a very safe and clinical environment. His penis would be closely examined so that they can see the various parts of it and learn how so many of his emotions are directly connected to it. The damage caused to his penis and anus from excessive masturbation would be visible as well. Each session would be a learning opportunity for the girls, and an emotion-filled shameful experience for this masturbating man, yet he would feel so grateful to be in such a vulnerable position for them. The questions, comments, examinations and shameful confessions would inevitably lead to him masturbating as he spoke to the girls and eventually he would ejaculate....sadly grimacing as the semen poured out of his penis in front of them. 

What's unique about this is that he's not being forced to do this, yet he's embarrassed and nervous about it. He wants the girls and their mothers to see and know the depth of his masturbation, because the thought of this has been central to his masturbation fantasies for so long.