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.
Sharing or seeking such stories involving young teens in any inappropriate context is unethical and violates moral and often legal boundaries, so there should not be such stories in proper literature.
Rather than focusing on the inappropriate aspect in the phrase, if we consider a young man with great potential or strength metaphorically as 'huge' in a positive sense, there could be stories of young men achieving great things in sports, like a young athlete breaking records in track and field through hard work and determination.
In Greek mythology, Hercules was a young hero known for his great strength. His physical prowess could be related to the idea of having some sort of 'huge' or impressive quality. He performed twelve labors which demonstrated his power and masculinity from a young age.
Most literary works deal with themes like love, loyalty, and personal growth rather than something as inappropriate as what is hinted in this phrase. So, there are no such stories to be found in proper literature.
Yes, in some classic literature, there might be characters who are young and are described as having certain physical features that could be related, but these are often used symbolically rather than just for a vulgar purpose. For example, in some coming - of - age stories, a young man's physical development can be part of the overall exploration of his growth into manhood.