It's fiction. There is no magic that can cause such a physical change in the male body. Physical growth in the male genital area is a natural process during puberty and is mainly determined by genetics and hormonal balance.
One myth is that there are special potions or spells that can instantly increase size, which is baseless. Another is that certain rituals can cause growth, but there's no scientific proof for this either.
Yes, there might be some fictional stories in certain types of literature, especially in some satirical or extremely imaginative works. However, it is not a common or mainstream theme.
One common theme could be the element of transformation. It might involve a character going through a sudden change that includes this growth, often for comical or shock value.
For some readers, these stories can be a form of escapism. They enter a world that is different from the ordinary and explore extreme concepts. However, they can also be disturbing for some. If a reader is not comfortable with sexual or extreme body - related themes, it can cause discomfort.
One common theme could be the idea of transformation. It might involve a character going through a sudden or gradual change related to their physical state. Another theme could be shock value, as these concepts are rather extreme and might be used to create a strong reaction in the reader. Also, it could touch on themes of power or dominance, as the idea of a'massive' growth can be associated with a sense of power.
Perhaps it's a satirical take on male bravado. The idea of something growing in an extreme way might be used to poke fun at excessive masculinity. It could also be a way to explore the concept of change in a very extreme and physical - sounding way, even if it's not meant to be taken literally.
Most likely they are fictional. There is no scientific evidence to support the idea of sudden and extreme growth in that area in real life. It often belongs to the realm of fantasy stories.
There could be. Folklore is full of all kinds of magical elements. A 'cock growth magic story' might exist where a cock, perhaps representing courage or vigilance in the story, undergoes some form of growth through magic. This growth could be physical, like growing larger and stronger, or it could be a growth in character, such as becoming more intelligent or brave.