Our Maine Coon girl cat, Miss Olivia is large and in charge at 14.5 pounds, but that’s OK for that breed.
My kitten, Chaos, is 8 months old and is already 13 pounds. I’m not sure what breed he is- I adopted him as an 8 week-old orphan right after Hurricane Irene- but I’m thinking he has either Norwegian Forest cat or Maine Coon in his lineage. He’s so big that we call him our “Geico watch panther”. :-)