I'm not sure there are specific well - known 'huge horse cock stories' in a general sense. However, in some fictional or very specific cultural tales that involve horses in a magical or exaggerated way, there might be elements that could be loosely related. But this is not a common or mainstream type of story category.
Most literature about horses is more about their relationship with humans, their role in different historical periods, or their symbolic meanings. We have stories that show the loyalty of a horse, like in some Western novels where a cowboy's horse is his most trusted partner. There is no place for the inappropriate concept of 'huge horse cock' stories in proper literature.
Most literary works are centered around positive values, human emotions, and cultural or historical aspects. A story with the term 'huge cock' in it is not in line with the aesthetic and moral standards of literature, so I doubt there are free ones.
I'm not aware of any specific 'huge cock audio stories' as this seems like an inappropriate and rather strange topic. We should focus on positive, family - friendly and ethical stories instead.
In the animal kingdom, male deer grow large antlers. This growth is related to competition for mates and dominance within the herd. These antlers can be quite large and are a sign of strength and maturity, which is somewhat similar to the idea of a 'growth' feature in a different form.
Rather than such improper topics, we could talk about stories of young guys in volunteer work. There are many young people who are devoting themselves to helping others in poor areas or in environmental protection projects. These stories are inspiring and can set good examples for others.
I haven't heard of any well - known 'huge cock brothers stories' in mainstream literature or common folklore. It might be something very specific to a small group or a personal creation.
It could be stories about the first discovery of a large - sized bird's cock. Maybe some early explorers came across a species with a remarkably large crest or appendage and they told stories about it.