I think Chase from 'Lab Rats' and Jack from 'Kickin It' would be an interesting pair. Chase is the smartest of the bionic siblings and Jack is quite street - smart in the karate world. Their different ways of thinking and approaching problems would create a lot of interesting interactions. For example, Chase might be too reliant on his bionic intelligence, while Jack would show him how to use intuition and quick thinking in a fight.
Another great pair could be Bree from 'Lab Rats' and Kim from 'Kickin It'. Bree has her super - speed bionic ability and Kim is a skilled karate fighter. They are both strong female characters. They could bond over their determination to be the best at what they do. They might compete with each other at first, like in a race where Bree uses her speed and Kim uses her karate - inspired agility. But then they realize they can be better together and team up against a bully or a villain.
Adam from 'Lab Rats' and Jerry from 'Kickin It' could also be an interesting pair. Adam is the strongest bionic but not always the brightest. Jerry is a bit of an underdog in the karate group. Adam could protect Jerry from some initial threats in the new combined world of the fanfiction. And Jerry could teach Adam some of the subtleties of karate, like balance and focus, which Adam might not have learned in his bionic training.
One possible plot could be that the bionic heroes from 'Lab Rats' somehow end up in the dojo from 'Kickin It'. There, they meet the karate students and initially there are some misunderstandings due to their different worlds. But then they realize they can learn from each other. The bionic superpowers could be combined with the karate skills in an epic battle against a common enemy, like a group of high - tech thieves who want to steal both the bionic technology and the secret karate techniques.
Another great pairing could be Sakura and Bree. Sakura is a strong and intelligent female character in Naruto, and Bree is a powerful bionic girl in Lab Rats. They could bond over their shared experiences of being in a male - dominated group and having to prove themselves. They might also exchange fighting techniques, with Sakura teaching Bree some of her ninja - style combat moves and Bree showing Sakura how to use her bionic abilities more effectively.
Chase from Lab Rats and Kaz from Elite Force would make an interesting pairing. Chase is the super - intelligent one in his group, and Kaz is the impulsive but brave member of his team. Their different personalities could lead to some great banter and also they could learn from each other's strengths.
I think Naruto and Adam could be a really interesting pairing. Naruto's never - give - up attitude combined with Adam's over - the - top confidence and super strength would make for some really fun and action - packed scenes. They could compete with each other at first in terms of strength, but then realize they need to work together.
I think the interaction between Percy and Chase would be really interesting. Percy has his quick - thinking and his water powers, while Chase is the smart one in the Lab Rats with his super - intelligence bionic ability. They could have some great debates about strategy and technology vs. magic.
One common theme is crossovers. Writers like to bring the characters from Lab Rats and Kickin It together and see how they interact. Another theme could be character growth. For example, taking a character from one show and exploring how they would develop in the world of the other show.
Leo can also be an excellent character to pair with Douglas. Leo, being the step - brother of the bionic trio, has a unique perspective. He can be both suspicious of Douglas's motives and also be the one to give him a chance at redemption. Their relationship can develop as Douglas tries to prove himself to Leo, and Leo learns to see the potential good in Douglas.
In my opinion, Black Widow and Annabeth Chase would make an interesting pair. Black Widow is a highly skilled spy and fighter, while Annabeth is known for her intelligence and strategic thinking. They could team up to outwit their enemies. Annabeth could learn some new combat moves from Black Widow, and Black Widow could gain insights into ancient strategies from Annabeth.
Definitely Hulk and Hercules. Hulk is all about brute strength and uncontrollable rage at times. Hercules is a demigod known for his incredible strength as well. They could either have a massive fight to prove who is stronger or they could learn from each other. Maybe Hercules could teach Hulk how to control his anger better and use his strength more effectively.
It has to be Spider - Man and Mobius. Spider - Man's youthful exuberance and his quick - wittedness would contrast well with Mobius' more serious and experienced demeanor. Spider - Man could ask a million questions about the multiverse, and Mobius would either patiently answer or get exasperated, which would be really entertaining.