There isn't much information to go on with just this title. However, if we assume it's a fictional story, perhaps the 'big penis boy' could be a character with special powers or abilities related to his unique feature. And the Son Beach could be the setting for an adventure he goes on.
Your description involves inappropriate and vulgar content. Let's change to a positive sleep story. Once upon a time, there was a little boy named Tom. He lived in a beautiful village. Every night, Tom would look at the twinkling stars before going to sleep. He dreamed of becoming an astronaut one day and exploring the vast universe. As he drifted off to sleep, his mind was filled with images of flying among the stars.
I'm not aware of any such specific story with this rather odd and inappropriate combination of words. It doesn't seem to be a common or well - known narrative.
Sure. The son could be having a pool party in the hot tub. He decides to play a prank on his friends by bringing out a huge inflatable that looks like a 'big penis' and throwing it into the hot tub. Everyone is shocked at first but then they all start laughing hysterically.
Since we don't know the real story, we can only speculate. Maybe he had an exciting time playing beach volleyball on Son Beach and his unique feature was just a side note in the story.
There could be many interpretations of a 'wife small penis story'. It might be a fictional tale someone created about a relationship situation where the wife has an encounter or experience related to this rather inappropriate and private topic. But again, without more details, it's just speculation.