Tess and Lily had their 15 month checkup yesterday... Tess weighs a whopping 18lbs, and Lily tips the scale at 18 lbs 10 oz. Totally fine just petite. I don't know how they can be so tiny, the are constantly eating, or crying to eat. And how can it be that after 3 days of following me around crying, they get a leg full of shots and become cheerful little monkeys again??