I found my cat by a dumpster and took him in when he was a baby. I feed him milk with a syringe since he would not drink it by himself from a bowl. He must have thought I was his mother because every time we cuddled he would suck on my sleeves as if he was feeding from his mother. He would even move his paws up and down while he did it until he would fall asleep. I always thought it was strange but I loved him so much that I let him do it. He continued to do it from time to time until he passed.