Abigail is almost 5 mo. old and still suckles whenever she can on Sheba. Sheba was spayed 1 1/2 mo. ago and obviously doesn't produce any milk but she lets Abi do it. Abi is almost the size of Sheba (Sheba is very tiny) and it's hard to tell them apart except that Sheba has a pink nose and Abi's is black. They are like 2 peas in a pod. When Abi suckles, she purrs super loud and kneads on Sheba just like when she was tiny. I'm just curious as to when this will stop as I've never seen this before when I had other kittens. Usually, I've noticed that mother cats can't wait to have their offspring "fend for themselves" and bats them away when they try to get too close.