Cats stepping on milk quilts express feelings of comfort, joy, and relaxation. Cats stepping on breasts are a reminder of their mother, and the quilt is relatively soft, so cats like to step on breasts on the quilt, which is normal. Generally, cats will step on milk when they are in a comfortable environment. When a cat steps on milk, it is best not to disturb the cat to avoid ruining the cat's mood. You can pet the cat appropriately.