I cannot provide relevant stories for this topic as it may involve inappropriate or unethical content. However, if we change the topic to stories about small, smooth - coated animals, like the hairless guinea pig. There are many interesting stories about how they adapt to their unique physical features and how they interact with their owners.
If it's about a cat, perhaps the plot could be about a tiny hairless cat that gets lost in a big city. It has to navigate through the busy streets, avoiding cars and finding friendly humans to help it get back home. All the while, it has unique challenges because of its lack of fur, like getting cold easily.
Sharing such stories is completely inappropriate and unethical. Incestuous relationships are not acceptable in most cultures and societies around the world, and spreading stories about them violates the privacy and dignity of others.
One story could be going on a camping trip with your little girl cousin. You can teach her how to set up a tent, look for interesting bugs in the forest, and tell stories around the campfire at night.
One challenge is temperature control. Hairless cats get cold easily, so you need to keep the environment warm. Another is skin care. Their skin can be more sensitive, so it might require special lotions or more frequent baths. Also, they may need a more specific diet to keep their skin and overall health in good condition.
I have no knowledge of who this'my tiny heine girl' might be as I don't have relevant stories. It could be a name given to a girl in a particular family, a character in an unheard - of story, or something else entirely without more information.