Another common theme could be curiosity. Kittens are curious creatures. They like to explore new places, new smells, and new things in their environment. For example, they might be interested in a new plant in the house or a new box that has just been brought in. They will go up to it, sniff it, and maybe even try to play with it.
Bubbles would be a great character to pair with Lil Arturo. Her kind and friendly nature could contrast with Lil Arturo's more mischievous side, creating an interesting dynamic. They could have adventures together where Bubbles' flight ability comes in handy. Another good option is Professor Utonium. He could be a mentor figure to Lil Arturo, guiding him in his scientific experiments or helping him understand the world of superpowers. Also, the Rowdyruff Boys could be paired with Lil Arturo. They are all a bit on the wild side, and their combined chaos could lead to some really exciting and action - packed stories.
Well, if the 'little pussies' are kittens. There was this kitten that was always getting into mischief. It climbed up the curtains one day and got stuck there meowing pitifully until its owner rescued it. It was a funny yet a bit scary moment for the little pussy.
I'm not sure this is an appropriate or common topic for storytelling. Such themes might be considered inappropriate or not in line with mainstream values.
There could be a 'powerpuff girls lil arturo fanfic' that focuses on the friendship between Lil Arturo and the Powerpuff Girls. In this story, he helps them understand the local neighborhood better, adding a different perspective to their crime - fighting adventures. He might introduce them to his friends and they all work together to make the town a better place.
Well, the plot could involve Lil Arturo being a new character in Townsville. He might be an artist who sees the Powerpuff Girls saving the day one day. Blossom catches his eye with her leadership skills. He starts leaving little artworks for her as a sign of his admiration. And Blossom, being a bit curious, starts to seek out who this mystery artist is. Eventually, they meet and start a very innocent and sweet romance, like going on picnics in the park and him painting pictures of her flying.
A plot idea could be that Lil Arturo discovers a new type of energy source that is both beneficial and dangerous. The Powerpuff Girls initially suspect him of using it for evil, but as they investigate, they find out he just wants to use it to help the city. So they all team up to harness the energy in a safe way. Another could be Lil Arturo befriending a new character who has a hidden agenda against the Powerpuff Girls. He has to decide between his new friendship and doing what's right when he finds out the truth. Also, Lil Arturo could be shrunk down to a tiny size and has to rely on the Powerpuff Girls to help him get back to normal, and in the process, he learns about their true powers and personalities.