This statement is rather unclear and could potentially be a very strange or misphrased description. If we assume it's some sort of horror - fantasy story, it might be a very grotesque and symbolic way of showing the monster's power or some sort of otherworldly nature.
The pulsating might also be a way to make the monster seem more alive and dynamic. Instead of just being a static, menacing figure, the pulsating 'huge cock' gives it an added dimension of movement and energy. It could also be a symbol that ties into the overall theme of the story, perhaps representing chaos or destruction that the monster brings.
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.
In mainstream science fiction, there are no such vulgar depictions. Science fiction usually focuses on concepts like advanced technology, different cultures, and exploration. For example, in 'Ender's Game', the focus is on military strategy against an alien race in a more intellectual and ethical context.