People write it because they love the relationship between Santana and Brittany. The kiss is a very significant moment in their relationship, and fanfiction allows fans to explore different scenarios and emotions around it.
People write it because they love the characters. Santana and Rachel are both complex and interesting characters in Glee. Their relationship in the show has its own tensions and chemistry, and fans like to explore different possibilities for them, like a kiss.
Writers often develop their characters by showing their interactions. For example, through their conversations, we can see Rachel's determination and Santana's sassiness. They also put them in different situations. If they're in a competition, Rachel might show her competitive side more, while Santana could show her loyalty to her friend. Another way is by exploring their pasts. Maybe we learn about Santana's family issues that made her so tough, and Rachel's lonely childhood that fuels her drive for stardom.
Their relationship would likely become more deep and committed. Having a baby together means they are now a family, and they would have to rely on each other more than ever.
She may start to develop deeper relationships with other characters. For example, her bond with Brittany could become even stronger as Brittany stands by her side during this difficult time. Also, she might become more empathetic towards others in the Glee club who have their own secrets or insecurities. Her character growth could also involve her becoming more involved in the Glee club's activities in a more positive way, using her voice to sing about her experiences and feelings.
It could also be for creative exploration. Writers might want to see how the storylines would change if these characters were more adversarial. They can play with different character dynamics and create new plot twists that deviate from the positive or neutral portrayals in the original show.
Writers often show Santana's character development by having her face her fears. Since Santana has always been a tough - as - nails character, pregnancy could be something that scares her deeply. So, as the fanfiction progresses, she might become more vulnerable and open, especially to Rachel. For example, she could start sharing her insecurities about becoming a mother and how she's worried she won't be good enough.
Fanfictions on this topic often take a deep look at Santana's character. They may show her journey of realizing she has an eating disorder, perhaps through small signs like skipping meals or being overly critical of her appearance. It could also show her getting help, either from friends or professional sources, and the process of recovery which can be both difficult and inspiring.
In a fanfiction, Rachel and Santana could become friends after being paired for a project that has nothing to do with glee club. Maybe they have to work on a community service project. At first, they bicker constantly, but as they face challenges like dealing with difficult people in the community or coming up with creative solutions to problems, they start to respect each other. This newfound respect turns into a real friendship that surprises everyone around them.
I'm not entirely sure specifically about 'santana pregnant fanfiction'. However, many fanfiction communities are vast. It could depend on the fandom Santana is from. If it's a popular one, there's a good chance someone has written a story with that concept. You could also check related fan forums where fans might discuss or share such fanfictions.