I'm not entirely sure about the common themes in 'wendy and mest lemon fanfiction' specifically, but in general, love and relationship development might be common.
I'm sorry, but I don't have a specific list of 'wendy and mest lemon fanfiction' to recommend. You could try searching on fanfiction - specific websites like Archive of Our Own or FanFiction.net.
Their relationship could develop through training sessions. As they train together, they learn more about each other's strengths and weaknesses, and a bond of mutual respect forms.
One interesting plot idea could be Wendy and Mest going on a mission together to a far - off land. Along the way, they encounter a powerful magical beast that they have to defeat using their combined skills. Wendy's healing magic might come in handy when Mest gets injured during the battle.
Friendship is a very common theme. Writers often explore the bond between Wendy and Lemon, how they become friends and how they maintain that friendship.
The 'Peter Pan and Wendy 2003' in lemon fanfiction could indicate that the fanfic uses the 2003 version as a starting point. It could be that the 2003 adaptation had a particular aesthetic or mood that the writer wanted to use in their more risqué story. For example, the way the characters were designed or the way the Neverland was presented in that version might have inspired the fanfic writer to create a story that delved into more adult - themed relationships between Peter Pan, Wendy, and the other characters.
I can't really say for sure as I don't actively read lemon fanfictions. But generally, in any fanfiction about two characters, themes like their relationship development might be there. Maybe how they support each other in different situations in a more romantic or intimate context in the case of lemon fanfictions. However, this is all speculation.
Another theme could be growth. For example, they might start as two very different characters but through their interactions, they both grow and change. They could learn from each other's strengths and weaknesses. It might be that Wendy is more outgoing and helps Lucy Lemon be more confident, while Lucy Lemon has some skills or knowledge that Wendy lacks and she imparts that to Wendy.
One interesting Dipper and Wendy lemon fanfiction could be about their adventures in a parallel dimension where they have to rely on each other more than ever. In this story, their relationship deepens as they face various challenges together.
Sure. One great Wendy Lemon fanfiction is 'Wendy's Adventure' which takes Wendy on a journey through a magical land. It's full of exciting plot twists and character development.