Yes, there can be. Such stories might promote unrealistic or inappropriate ideals. They could also objectify individuals and contribute to a culture that focuses too much on certain physical aspects rather than more important qualities like character and intelligence.
One can focus on more positive and meaningful content, like educational books or inspiring movies. By filling one's mind with good things, there is less room for such unwholesome stories.
I'm not sure specifically which 'huge cock story' you are referring to. There could be many stories that might use this phrase in a non - vulgar way, like a story about a large rooster perhaps.
There is no well - known 'huge teen cock story' in mainstream literature or common knowledge. However, if we take the nautical meaning of 'cock' as mentioned before, there might be local tales in fishing communities about a large teen - sized boat that was significant in some way, like saving a village from a storm.