A plotline could be that the mmf trio starts as friends. The bisexual man has feelings for both the man and the woman in the couple, but is hesitant to act on them. Eventually, some event or realization makes them all come together and start a relationship, and they deal with issues like jealousy and communication along the way.
Perhaps the story could start with the man in the couple being curious about bisexuality and reaching out to the bisexual man. They start to build a relationship, and then the woman in the couple also becomes involved. They have to face external judgment from society and family. Meanwhile, they also have to work on their internal relationship dynamics, like how to divide their time and attention equally among the three of them.
I'm not sure specifically as the description is rather vague. It could potentially be a story about a bisexual male in a relationship with a male - female couple. But without more context, it's hard to say exactly.
One possible plotline could be that a wife is in an open relationship and meets two men, one of whom is bisexual. They start to explore a new kind of relationship together, with the wife being in the center of this new dynamic, and they all have to deal with the emotional and social implications.
There was a couple, the guy, Mark, who was bi. His partner was Emma. Mark had always been open about his bisexuality with Emma from the start. They often talked about his past relationships with both genders. One day, they decided to attend a pride parade together. It was a great experience for them as a couple. Mark felt more accepted in the relationship, and Emma was proud to be with him. Their story is about acceptance and growing together in a relationship with the unique aspect of Mark's bisexuality.
Well, consider a story where a MMF couple was looking to start a small business. An older man, who had been a successful entrepreneur in his day, came into their lives. He mentored them, guiding them through the process of writing a business plan, finding investors, and marketing their product. Thanks to his help, the couple's business got off to a great start, and they remained in touch with the older man, often inviting him to their business events as a sign of gratitude.
One possible plotline could be that of a resistance fighter in 1943. He or she is secretly working against the occupying forces, passing on information and helping the underground movement. Another could be a story about a group of factory workers in 1943 who are trying to increase production for the war effort while facing difficult working conditions.
Another theme might be family unity. Despite the bisexuality aspect, the family members strive to stay together and support one another. It could also involve themes of self - discovery, as family members explore their own identities and those of their loved ones in the context of bisexuality.
In some fictional worlds, a wife might be part of a bisexual mmf relationship where they start as friends. They all enjoy each other's company, go on adventures together, and over time realize that their feelings are more than just friendship. It's a story of self - discovery and building a relationship that is free from any form of force or coercion. They communicate openly about their feelings and boundaries every step of the way.
The bi man's couple story could be about his journey in finding true love. He might have dated both men and women before finally settling down with his current partner. It could also include details about their first date, how they fell in love, and what makes their relationship unique.
A theme of self - discovery could also be present. Through the massage experience, the wife might discover new things about herself, like her tolerance for different types of touch or her preferences for certain massage techniques. Maybe she realizes that she enjoys the combined efforts of her male and female friends in this relaxing activity more than she expected.
There might be some self - published or niche - market books that deal with such relationship stories, but they are not widely known. You could try searching in specialized relationship - themed bookstores or online platforms that focus on rare or unique reads.