[M4M] Dad finds out about my small dick

Due to a series of misunderstandings, I - a man in my early 20s, am forced to share a hotel room with my dad while we are out of town for my cousin's wedding. Unfortunately, the small room does not offer much privacy which I am pretty freaked out by. Dad doesn't seem to care much about it. I don't think there is anything about me I should be ashamed of, but I'm not used to getting changed or showering around other guys.

Eventually, we will both see each other naked, leaving my dad in disbelief. He will struggle to believe that his son is so much less of a man than he is. He always knew his son was not as tall as he was, but now finds out this is not the only time their sizes do not match up. Where he would have expected a mighty cock like his own, his son was endowed with maybe not even an average sized penis. In fact, his son might be the least masculine man he has ever seen, a thought that was reenforced by his almost total lack of body hair. The two men might be complete opposites.

Left with little respect for his son, the dad will go over to mocking his son for his shortcomings. He compare him to other, real men and will make fun of him, not caring about how unpleasent all of this is for his son.

*Feel free to suggest other/similar scenarios. :)*

*Kinks: cmnm, comparing, degradation, flaccid dicks, measurements, sph*

*Limits: feminization, women (as major characters)*