I am babysitting a neighbors kitten while she is away on her honeymoon, its about 3 months old. I came home from running errands this morning and on my bed is my Molly (my misfit who I adore) and the kitten, and the kitten is NURSING on her! Molly has never had kittens and was spayed at 6 months, and she's about 7 years old. Molly was licking and cleaning the kitten like it was her own, and the kitten was kneading on Mollys belly and purring really loud. I just closed the door and left them both alone. I felt like I was intruding... Is this normal?