For every additional kid, the statistical chance of getting a good photograph decreases by 10 orders of magnitude. At least.
And, when the family is actually assembled, bathed, clothed and willing to pose for photos, it will be out of focus, my hair will be weird, my blush will be shiny, my face will be two shades whiter than mayonnaise, my baby will look terrified, and my husband will be grabbing my ass region.
School of Not-Quite-Rock
5 hours ago