I've seen this on ' mentally challenged' men more than once.
One young man at the gym had massively fat, 4- 5"er totally soft
but he had the I Q of gold fish. He was always a very happy guy.
This is NOT the biggest soft endowment I have seen....but as it relates to the two previous posters comments about "mentally challenged" men I will share.
This is going back many decades to back when I was a late teenage. There was a "mentally challenged" mid 20ish older than I who young "man" who lived in the neighborhood. Back then they were called "retarded" and that was not used as a pejorative, but just a description. He went to a special school that was basically a day care center with activities that were vaguely learning oriented, but all ages were in the same class, and most of the activities seemed more to entertain and occupy the time of the "students".
As it happened this fellow was really nice...kind and good hearted. He, his two sisters, one younger, one older, and his parents, lived in the next block but just a few doors down. I remember his mother was a spectacular "looker"...tall, at least 6', model of that era thin...probably a size six of that time, pretty face, big mane of hair, very buxom, and just built for sex....and since women of that era did not shave or trim their pubic hair, she had a magnificent hairy giant bush.
One of the sisters was my age. He....Ricky.... would occasionally wander off away form home and the neighborhood often "mobilized"...mostly the young teenagers on their bikes or on foot or in their cars, to ride around and check the yards and alleys and hedges and bushes to see if he might be just hiding or sitting around watching grass grow or playing with some dog or other animal he had discovered. Really...happened at least once a month if not more Go find Ricky.
And Ricky was not tall...maybe 5'5"ish...average, almost stocky build, the typical facial features of a "mentally challenged"....and as I recall very vividly he was measured 12.75" long x 8.25" around flaccid penis with very big balls. And Ricky loved to show it off...you might find him under a row of hedges playing with a dog or sitting playing with himself. The stories were that when he was in his room, he occupied his time with just playing with himself and his family saw him soft and erect many times.....his sisters told their friends but with Ricky being found around the neighborhood sitting somewhere playing with himself, it was not like a shock....but he was very sweet person and not a harmful thought in his nature so his antics were just accepted, more or less.
As it happened, both of his sisters were much taller, similar to their mother, and while pretty, were not anything like as beautiful and sexy as their mother...facially closer to their father but they both did have their mothers thick mane of hair and hair color.
Some time later I learned that Ricky's mother had for decades many times had sex in long standing friend with benefits, but not "affairs" per se, with two of my paternal uncles, my paternal grandfather, and my father as well. Her own husband was said to have just over 9" and about 7" around erect, but she over decades had discreet sex with my relatives who had much bigger endowments than her husband.
I never heard it actually confirmed, but it was several times alluded to that Ricky's real father was a relative of mine....though it possible that his mother, if she did know who, never did share that I know of, which of any of my relatives who......and thus Ricky was possibly to me related as an uncle, or cousin, or even an older half brother to me. Which, in the event, unlikely as it was shared that she only was with my father a few times and not nearly like my uncles and grandfather, my own father was his father, would have made him the only sibling I ever had. As it happened, years after I was grown and gone, I heard that Ricky had passed away in his early 40s, which was not, as I was told, uncommon for men afflicted as he was.