There's no evidence to suggest that such a story is true. It might be a fictional or exaggerated account created for shock value or to gain attention. We should be cautious about believing such unusual stories without proper verification.
One real brother - sister story is about a brother and sister who grew up in a small town. The sister was really into art but was too shy to show her work. Her brother, believing in her talent, secretly entered one of her paintings in a local contest. She won, and it gave her the confidence to pursue art further.
A brother and sister once invested in real estate together. The sister had studied architecture and knew a lot about property values based on location and design. The brother was good at networking and finding great deals. They bought a dilapidated property at a low price. With the sister's vision for renovation and the brother's ability to manage contractors, they transformed the property. They then rented it out and later sold it at a much higher price. Their story emphasizes the importance of leveraging each other's skills in investment.
There's a story of a brother and sister where the brother had a physical disability. But the sister never let that stop him from living a full life. She would push his wheelchair everywhere, take him to school, and help him participate in all activities. They both showed that with love and determination, any obstacle can be overcome. She was his strength, and he was her inspiration to be a better person.
Brother - sister relationships can also impact investment decisions through complementary skills. Say the brother is good at marketing and the sister is good at accounting. They could invest in a business where the brother promotes it and the sister manages the finances. This synergy can lead to more informed and successful investment choices. Moreover, they may be more patient with each other during tough times in the investment journey compared to other partners. If there's a loss, they are likely to support each other and work towards recovering rather than blaming one another.
Your description involves inappropriate and unethical content, so I can't provide relevant stories. We should focus on positive, healthy and ethical family interactions.