Obviously, Brian and Ellie are the main characters. Brian is the talking dog with a rather intellectual side, and Ellie is another character within the Family Guy universe.
One interesting storyline could be Brian and Ellie going on a wild adventure through Quahog. Maybe they discover a secret society in the town that no one else knew about.
Fanfic involving Brian and Stewie in inappropriate or sexual situations is not appropriate at all. 'Family Guy' is a show mainly aimed at comedic and family - related entertainment. Such inappropriate fanfic goes against the general spirit of the show and is also not suitable for a wide audience.
One idea could be a story where Brian and Stewie go on an adventure in outer space. They could encounter strange alien species and have to use their wits to get back home.
A positive fanfic theme could be their adventures around Quahog. For example, they could team up to solve a mystery in the town, like finding out who is stealing all the pies from the local bakery. This would play on their intelligence and their unique bond as friends.
A trope that is often used is the 'mystery - solving' one. Brian and Stewie team up to solve a mystery in Quahog, like a string of strange disappearances or a mystery about a local legend. They use their combined skills, Brian's street - smarts and Stewie's deductive reasoning, to crack the case. It makes for an exciting and engaging fanfic plot.
Yes, there might be some fan - made or even some officially inspired works that could potentially feature Stewie and Brian in a novel - like form. However, as of now, there isn't a widely known, mainstream 'Family Guy' novel solely centered around them.
Another unique plot could be a fanfic where Brian and Lois get trapped in a time loop. Every day they wake up and it's the same day over and over again. They have to figure out how to break the loop together, and in the process, they learn more about each other and their relationship. It would be full of comical attempts and some deep conversations.
One memorable quote from Stewie could be 'Victory is mine!' This shows his over - confident and often comical nature. Brian, on the other hand, has lines like 'You know, there's a lot of beauty in ordinary things. Isn't that kind of the point?' These quotes can add humor and depth to a novel if used appropriately. For example, if you're writing a comical or satirical novel, Stewie's quotes can bring in that zany element, while Brian's can add some philosophical undertones.
I'm not sure there is an official 'Family Guy Stewie and Brian' novel. But if there were, it might involve Stewie's wild schemes and Brian's more rational attempts to deal with them, just like in the show. Maybe they go on some wacky adventures together in the fictional world of the novel.