One great 'best friends brother' novel is 'The Kiss Quotient' by Helen Hoang. It has a unique plot where the female lead hires the male lead, who happens to be her best friend's brother, as her practice boyfriend. It's a heartwarming story of two people from different worlds coming together.
In this plot, the best friend's brother is a very shy person. He has a secret talent for painting but is too afraid to show it to anyone. You accidentally discover his paintings and are amazed. You encourage him to participate in an art competition in the town. At first, he is hesitant but with your and your best friend's support, he enters. Throughout the process, there are a lot of self - discovery moments for him, and it also strengthens the bond between you, your best friend and her brother.
The forbidden - love aspect makes it appealing. It's that idea of something being off - limits which adds an element of excitement. For example, in many such novels, the main character has to deal with loyalty to their best friend while also having strong feelings for the brother.
In a typical best friends brother story, there could be a situation where the brother has a crush on one of your other friends. So, there are all these secret glances and little attempts to get her attention when she's around. And your best friend and you might be in on the secret and trying to help him out in a subtle way.
There's this amazing fanfic called 'Forbidden Love'. In this best friends brother fanfic, the two main characters have to overcome many obstacles. Their relationship is a secret at first, and they struggle with hiding it from their families and friends. The author does a great job of building the tension and the chemistry between the characters.
A great best friends brother fanfic has a strong emotional core. For example, the characters should have complex feelings like guilt (because of the situation with the best friend) and attraction at the same time. This creates an interesting internal conflict.
In one story, the best friend's brother was an artist. He was a bit of a loner, but when the best friend and his sister showed an interest in his art, he opened up. He taught them how to paint and draw. They would have art sessions together, and it not only brought them closer but also made the best friend understand his brother better and made their friendship deeper as they shared this new aspect of his family life.
Well, sometimes the best friend's brother can be a great sports coach. Let's say he's really good at basketball. He might offer to train the best friend and their friends during the summer break. He'll teach them how to dribble better, shoot accurately, and play as a team. Through this, the friends become more confident in their skills and also learn about discipline and hard work. It also creates a more inclusive environment where everyone is having fun and getting better at the sport.
If the best friend's brother is really friendly and outgoing, it can enhance the friendship. For instance, he might include the friends in his social activities like going to the beach or having a barbecue. This adds more fun and variety to the friendship. However, if he's not so nice, like if he's always teasing or being mean to the friends, it can put a strain on the friendship. The best friend might feel caught in the middle between defending their friends and not wanting to get into an argument with their brother.
Well, in such a story, there could be a lot of drama. Maybe you start to have a crush on your best friend's brother, which creates a really awkward situation. You don't want to ruin your friendship with your bestie, but at the same time, you can't help your feelings.