Perhaps the story is about the baby being a symbol of hope for the future of the Trolls. Poppy and Branch would be protective parents. They would teach the baby about love and harmony. There could be a plot where an outside threat tries to harm the baby, but the whole Trolls community unites to protect it.
Maybe it has a more reserved personality like Branch at first. A bit shy but with a big heart. As it grows, it could start to come out of its shell more, especially with the help of its parents and the friendly Trolls around. It could be really creative, using things from the forest to make little artworks.
There could be an evil wizard who has been banished to a lemon - less dimension. When he senses that Poppy and Branch are getting close to unlocking the power of lemons, he tries to use his dark magic to stop them. He fears that if they succeed, they will be able to use the lemon's power to banish him even further, so he becomes the antagonist in their adventure.
A Trolls Poppy and Branch pregnant fanfiction might be filled with cute and heartwarming moments. For example, Branch could be overly protective of Poppy during her pregnancy. It could also delve into the cultural aspects of Trolls, like how they celebrate the upcoming birth, with their unique music and colorful traditions.
One possible plot could be that Poppy and Branch go on a journey to find a magical lemon tree. Along the way, they face various challenges that test their friendship. They might have to cross a dangerous river and solve riddles. When they finally find the tree, they discover that the lemons have special powers that can save their village from a mysterious threat.
Friendship is a very common theme. Their bond as friends is often explored, like how they help each other out in various situations. For instance, when one of them is in trouble, the other is always there to rescue or support.
In a Branch and Poppy married fanfiction, their married life might be centered around building a family. They would be great parents, teaching their little trolls about the importance of unity and friendship. Branch would be the more practical one, making sure the family has a safe and comfortable home, while Poppy would fill their lives with joy and laughter through her fun - loving nature.
Poppy would probably be really into the lemon - inspired world in the fanfiction. She might start decorating everything with lemons. Branch would be more practical, like trying to figure out if the lemons are edible or not.
Love and affection are likely to be common themes. Since it involves a kiss, it probably explores the romantic feelings between Branch and Poppy.
One common theme could be the anticipation and preparation for the new arrival. This might involve Branch and Poppy getting their home ready, gathering supplies, etc. Another theme could be how their relationship evolves during the pregnancy, becoming more loving and protective.
A fanfiction could revolve around Branch's past before he became the survivalist we know. Poppy discovers some long - hidden secrets about him that change their relationship dynamics. She has to help him come to terms with his past while also dealing with the current threats to their troll village.