Comparing Notes?

Today Cullen noticed something I would have NEVER thought he would have actually noticed. He asked why I had a picture of me holding toddler-age Lila up close and one of me holding toddler-age Carson up close and don't have one of me holding toddler-age Cullen up close. I do have one that my sister-in-law took and I only have one. It is sweet but it is not in a frame anywhere. Who would have thought Cullen, who I have to remind to comb his hair and change his clothes, would have noticed this? I showed him the picture in the scrapbook and said I would make a copy and frame it too. The way I REALLY wanted to reply would have made him turn red and be too embarrassed to ever ask a question again. I wanted to say...
"Yes, but I breast-fed you the longest, sweetie..."