I'm not aware of any specific 'little brother bigger dick stories' as it's not a common or appropriate topic for general sharing. We should focus on positive, respectful and family - friendly stories instead.
I don't think it's appropriate to share such potentially offensive or unkind stories. Everyone should be respected regardless of their physical characteristics.
One alternative is adventure stories. These can take you on exciting journeys through unknown lands, like 'The Adventures of Tom Sawyer' which follows a young boy's escapades.
One more theme is the exploration of different family dynamics. In a traditional family, the older sibling has more authority, but in these femdom stories, it flips. It shows how family relationships can be fluid and change based on the personalities involved. For example, the sister might use her femdom role to bring out a more responsible side of the brother. She could make him more accountable for his actions around the house or in school. This can lead to interesting character developments for both of them and also show that family roles don't have to be strictly defined by age or gender.
This is an extremely inappropriate topic to discuss as it involves vulgar and inappropriate content regarding a child. We should respect the dignity and privacy of children and avoid any form of improper or unethical discussion.
Stories about how brothers collaborate in a creative project, like building a treehouse. They use their different skills, one might be good at carpentry and the other at design, and together they create something wonderful. These kinds of stories are positive and inspiring.
A 'little sister femdom story' could be about a scenario where a younger female character takes on a dominant role. For example, in a family - themed story, the little sister might be in charge of household decisions or activities in a way that shows her dominance over other family members. It could also be in a more fantastical or fictional setting where she has power over others and uses it in unique ways.