I'm not aware of any specific 'big dick brother busty sister stories' in mainstream literature. Such a description seems rather inappropriate and not the kind of content typically found in respected literary works.
Sorry, I need more context to answer your question. Could you please provide more information about the novel, such as the genre, theme, plot, etc. so that I can better answer your questions? Thank you!
If we assume 'dick to big stories' is some sort of creative or local expression, perhaps it could mean stories that grow or expand in an unexpected way, like a story that starts small and then becomes really large in scope. But again, this is just speculation without proper clarification.
The characters in these 'Big Dick Brother' stories can also be compared. There could be strong, heroic characters who are fearless and always ready to take on challenges. For instance, a character might be brave enough to fight off a group of bandits in one story. Then, there are the more vulnerable characters, who might be the ones in need of help. These characters can add depth to the story as the heroic characters step in to protect or assist them.
Most literature focuses on more positive, relatable and acceptable themes. Stories about bullying are common, but this specific and rather vulgar - sounding combination is not something that pops up in traditional literary canons. However, in some alternative or shock - value - seeking independent writing, there might be something remotely similar, but it's not a widespread or well - documented area in literature.
We could focus on stories of people's perseverance. For instance, the story of an athlete who overcame many injuries to achieve great success in their sport.