Sharing such a story is completely inappropriate and unethical. It involves vulgar and inappropriate sexual content that goes against moral and social norms.
It could be positive. If the main character forms great friendships with their brother's friends, it can be a story full of shared experiences, laughter, and support. For instance, they might all come together to help the community or achieve a common goal.
The story could be centered around a mystery related to the brother's friends. Maybe there's something they are hiding, and the main character is on a journey to find out what it is. It could also be a coming - of - age story where the interactions with the brother's friends play a crucial role in the main character's growth and self - discovery.
There is no evidence to suggest that such activities occur in a gym environment. Gyms have rules and ethics in place to maintain a proper and respectful atmosphere for all members. This kind of description violates the basic norms of a public fitness place.