Motsy the overweight cat who arrived at the RSPCA weighing twice the weight of a normal cat. Although she has since slimmed down she still has some way to go. See SWNS story SWBRfat. A ten-year-old cat who was so overweight that she couldn’t groom herself or get through a cat flap, has shed the pounds and is now looking for a new home. Motsy came into the RSPCA’s Newport Animal Centre last October after her owner sadly passed away. On arrival she weighed 10.1kg - more than twice the weight of an average adult cat and roughly the same as a small dog like a West Highland Terrier. Motsy’s size meant she was unable to get in and out of the cat flap in her pod at the animal centre, so staff decided that being in a foster home would help her to lose weight and get more exercise. Fosterer Danni Wilson, who has been looking after Motsy at her home in Newport since November, said: “At first she was very nervous and had a particular fear of hands, so I started off by initially stroking her with my head.