9 years, 9 months.
Dear Jack,
Now that Mommy turned 39 a couple of weeks ago, she and I are both the same age.
In addition to that, I discovered another coincidence in our ages:
For the next couple of weeks, you will be 9 years, 9 months old; as your sister is 4 years, 4 months old.
By the way, I love the realness of the photo I took of you and your sister on Mommy’s 39th birthday.
You made a big, loud deal out of singing Happy Birthday, as your sister impatiently yet quietly waited for the song to end so she could finally have some chocolate cake!
Love,
Daddy