Aww, super pictures
My boy Toby (choc lab) wouldn't be on his back either if there was any food in the vicinity!
Love the pic of your cat! Again, my cats aren't so well mannered! My blue boy "Zippy", sits on your shoulder (he's a big lad too), swipes a paw onto your plate, "spears" it with his claws and helps himself if you're not quick enough!
Carol