Love against the odds is also a big theme. These novels usually portray the couple as having to face many obstacles, like family disapproval or the fear of ruining the friendship between the older brother and the love interest. But through their strong feelings for each other, they try to overcome these challenges.
Another theme is the conflict of loyalty. The main character has to deal with her feelings for the older brother's best friend while also being loyal to her family and her brother. This creates a lot of emotional turmoil and interesting plot twists. For instance, she might be torn between confessing her love and not wanting to break the bond between her brother and his friend.
Another theme is self - discovery. Through the relationship with the older brother's best friend, the main character often learns more about herself. In the process of dealing with this new and complex relationship, she discovers her own boundaries, desires, and what she really wants in a relationship and in life. This can be seen in novels where the main character starts as a shy or naive girl and grows into a more confident person through her experiences with this special person.
There is also 'Forbidden Love: Older Brother's Best Friend' which delves deep into the forbidden aspect of such a relationship. The story might include the internal struggle of the characters, as they know their relationship could potentially cause problems in the family dynamic due to the connection with the older brother. But the strong attraction between them makes it a very engaging read.
One common theme is the slow - burn. In best friend romance novels, the relationship often develops gradually over time. For example, in 'Pride and Prejudice', Elizabeth and Darcy's relationship evolves from initial misunderstandings and dislike as friends to deep love. Another theme is the discovery of new aspects of the friend. When the romantic feelings start to emerge, the characters see their best friend in a different light, like in 'The Hating Game' where the two coworkers start to notice things about each other they hadn't before. And the theme of fear of ruining the friendship is also prevalent. Characters are often hesitant to take the relationship to the next level because they don't want to lose the friendship they already have.
One common theme is support. In many of these stories, the best friend supports the brother in achieving his goals. For instance, if the brother wants to start a small business, the best friend might offer financial help or valuable advice. Another theme is fun and laughter. They usually have a lot of inside jokes and hilarious moments that strengthen their bond. Also, growth is a theme. As they grow up together, they learn from each other and become better people.
One common theme is the element of forbidden love. Since it's the dad's best friend, there's often a sense of going against the family norms or expectations.
One great 'brothers best friend' romance novel is 'The Deal' by Elle Kennedy. It has a really engaging story where the heroine falls for her brother's best friend in a college setting. There's a lot of banter and sexual tension that makes it a fun read.
One common theme could be loyalty. They might have stories where they always have each other's backs no matter what. Another theme could be adventure. Maybe they go on hikes or explore new places together. And also, there could be a theme of growth, as they learn from each other and become better people through their friendship.
Another theme is self - discovery. In these stories, the main character usually discovers a new side of themselves through the relationship with their brother's best friend. They might learn about their own strength in dealing with the complicated situation or find out new things they like and don't like in a relationship. For example, in many stories, the character realizes how much they value honesty when they face the secrecy of their relationship.
Responsibility is a major theme. The older brother has to take on the role of a caretaker, which shows his growing up. For example, in many such fanfictions, he has to make sure the baby brother is fed, clean, and safe.
Forbidden love is a big one. Since it's your best friend's brother, there's often a sense of it being off - limits. Another theme is secrecy. The characters usually try to keep their feelings a secret at first to avoid causing trouble in the friendship. And of course, there's the theme of discovery. Discovering new sides of the person they are attracted to, beyond just being their best friend's brother.