One possible plotline could be that Hiccup and Jack Frost meet when a strange magical event causes their worlds to collide. They then have to work together to find a way to separate the worlds again while also dealing with the local problems in each other's worlds, like Hiccup helping Jack with some mischievous spirits in Jack's world.
One possible plotline could be that Jack Frost discovers something strange related to Pitch, like a 'lemon' - themed object that has some sort of power over Pitch. And he has to figure out how to use it to either defeat Pitch or make him change his ways.
One common theme could be friendship. Since they are both unique characters, exploring how they become friends can be interesting. Another might be adventure, as both are often associated with exciting tales in their original stories.
Well, they might start off with some confusion. Jack, with his mischievous nature, could play a little trick on Hiccup which Hiccup might not appreciate at first. But then they would start to talk. Hiccup would probably be full of questions about Jack's powers and his origin. Jack would be equally interested in Hiccup's relationship with Toothless and the other dragons.
One possible plotline could be her journey in a magical world filled with other mythical creatures. As a female Jack Frost who is also a Pooka, she might struggle to fit in or find her place among the different magical beings.
A plotline might involve Orochimaru having some information that could help Sakura save a dear friend, like Sasuke perhaps. So Sakura has to bargain with Orochimaru, and in the process, they form an uneasy alliance. This would explore their complex relationship and Sakura's growth as she deals with a morally grey character.
One possible plotline could be a simple friendship story. Naruto, being the friendly and open - minded character he is, could befriend Shego. They might start by having a misunderstanding, like Shego thinking Naruto is a threat, but then realizing he's just a friendly ninja. They could then team up to take on a common foe, using Naruto's ninjutsu and Shego's combat skills.
Another theme could be the exploration of the impossible becoming possible in the realm of fanfiction. It would likely be a very creative take on the characters of Jack Frost and Hiccup, with the added element of pregnancy bringing in elements of family, responsibility, and new beginnings in a completely out - of - the - ordinary way. Since this is such an unusual concept, the writer would have a lot of room to play with different themes and ideas.
A possible plotline could be that Jack Frost is on a mission in Rapunzel's world and accidentally stumbles upon her tower. They form an instant connection. As their relationship progresses, Rapunzel gets pregnant. Now, they need to figure out how to raise the child. Jack Frost wants to introduce the child to his icy world, but Rapunzel is worried about the cold environment. Meanwhile, there could be a villain, like an evil witch or a jealous magical being, who wants to harm Rapunzel and the baby. So they have to rely on their combined powers and the help of their friends from both their worlds to protect their family - to - be.
I'm not sure about specific 'Jack Frost and Hiccup Lemon' fanfiction. But you can try searching on popular fanfiction websites like Archive of Our Own. They usually have a wide variety of fan - created stories.
Since 'lemon' content is inappropriate, let's focus on clean Hiccup and Jack Frost fanfictions. You can start by using search filters on fanfiction websites to exclude any mature - rated stories. Then look for ones that explore their different personalities - Hiccup's resourcefulness and Jack Frost's playfulness - and how they might interact in various scenarios.