It could be Tess. She might have changed a lot since the early days at Camp Rock and has become more responsible. She could be a great babysitter as she already knows Shane and Mitchie well and has a lot of experience around the camp environment.
Maybe one of the older campers who has a big family of their own back home. They would have some natural instincts when it comes to taking care of a baby. For example, a camper named Jason who often talks about his younger siblings and how he helps take care of them at home. He could be a reliable babysitter for Shane and Mitchie's baby.
One possible fanfiction could be that Mitchie and Shane's kiss was a spontaneous moment during a private rehearsal. They were alone, and the music filled the air. As they practiced a duet, their eyes met, and suddenly, the chemistry between them was irresistible. Shane leaned in, and their lips met gently. It was a soft, sweet kiss that left them both a bit breathless and with a newfound understanding of their feelings for each other.
One idea could be that Shane and Mitchie's baby has an amazing musical talent that emerges at a very young age. Maybe they discover the baby can play a complex melody on a toy piano just by listening to music once. This could lead to cute moments of Shane and Mitchie being proud parents and also thinking about how to nurture this talent in a fun and age - appropriate way.
Definitely Tess. She could be the antagonist who tries to break Shane and Mitchie apart. Her jealousy of Mitchie's relationship with Shane could create a lot of drama. Also, Mitchie's mom would be a great addition. She could give Mitchie advice about her relationship with Shane, adding a touch of parental wisdom to the story.
There might be a fanfiction where Shane gets injured right before a big performance, and Mitchie has to step up not only to perform but also to take care of him. This shows their bond in a different light. In the story, Mitchie's determination to help Shane could lead to a deeper emotional connection between them. It also gives a chance to explore how they deal with setbacks and support each other in difficult times.
Archive of Our Own (AO3) is also a great place to look for 'Camp Rock Shane and Mitchie fanfiction'. It has a large collection of fan - created works with a good tagging system, which makes it easier to find the specific type of story you're interested in. For example, you can search for tags like 'Shane and Mitchie', 'Camp Rock', 'Romance' etc. to narrow down your search.
After their kiss, they might face some jealousy from other campers. For example, some of the girls who had a crush on Shane could be envious of Mitchie. This could lead to some minor drama at the camp.
One great Shane and Mitchie fanfic could be about their post - Camp Rock 2 adventures. Maybe they go on a tour together and face various challenges that test their relationship. It could show how they support each other through tough times like dealing with difficult fans or problems with the tour schedule.
One interesting storyline could be Shane and Mitchie writing a song together. They could start with different ideas but as they work on it, they discover their musical styles blend really well and it becomes a hit at camp. Another could be them getting lost in the woods near the camp during an adventure day. They have to rely on each other to find their way back, and in the process, they grow closer and realize their feelings for each other.
Their different personalities. Shane is a famous pop star while Mitchie is more of an underdog trying to make it in the music world. In fanfics, this contrast can lead to many interesting situations, like when Shane has to teach Mitchie about the glitzy side of the music industry and Mitchie shows Shane the importance of staying true to oneself.
There's a possibility that the kidnapper is a deranged fan who has an unhealthy obsession with Shane and Mitchie. This fan might believe that by kidnapping them, they can have Shane and Mitchie all to themselves and make them perform just for them.