* Genetics are complex: Cat coat color is determined by multiple genes. Even if we knew the exact genes of the parents, predicting offspring color is difficult.
* Main Coon color variations: Main Coons come in a wide range of colors and patterns. Your grey and white Main Coon could carry hidden genes for other colors.
* Dominant and recessive genes: Some colors are dominant (like black), while others are recessive. A cat can carry genes for colors they don't show themselves.
Possible Outcomes:
* Black kittens: It's possible, but not guaranteed. The black parent could pass on its black gene.
* Grey and white kittens: Also possible, especially if the Main Coon carries dominant genes for grey and white.
* Other colors: Depending on the genes involved, kittens could be tabby, calico, tortoiseshell, or other combinations.
The only way to know for sure is to wait and see the kittens! It's a fun part of the surprise of breeding.