Well, in some bi interracial sex stories, two people from different races who are bisexual might find common ground in their shared identity of being open - minded about love and relationships. They could explore new things together, such as different cuisines from their respective cultures. And through their relationship, they also help break down racial stereotypes in their community.
One could be a story about a bisexual person who had a great relationship with a male partner first and then later found an equally fulfilling relationship with a female partner. They might talk about the similarities and differences in the emotional and physical aspects of both relationships. Another might be a story of a bisexual individual who is in a polyamorous relationship with a man and a woman and how they all support and love each other in a healthy way.
These kinds of stories often involve complex ethical issues. In most cases, having a sexual relationship with your best friend's boyfriend is clearly unethical. It betrays the trust of your friend and can cause great harm to the friendship. However, in some fictional stories where there are special circumstances like the best friend was already in a bad relationship and had given some form of consent, it still makes for a morally gray area.
One consequence could be the breakdown of the relationship. Once the boyfriend discovers the cheating, trust is shattered and it's very difficult to rebuild. For example, in many stories, the boyfriend feels betrayed and angry, leading to an immediate break - up.
Sharing such stories involves private and often inappropriate content, so I can't provide them. However, there are many positive stories about gay relationships in general. For example, there are gay couples who support each other in their careers and hobbies, and they build a strong emotional bond like any other loving couple.
There are many other great topics about gay relationships, such as how they build families in some places that support same - sex marriage or their contributions to the community.
I don't think it's appropriate to share such salacious stories. Cheating is an unethical behavior in a relationship, and focusing on the sexual aspect of it is not respectful to those involved.