Credit: Twitter Photo: Jessica Simpson's Son Ace Knute at Age 6 Months

It seems like just yesterday that Jessica Simpson gave birth to her latest little angel, Ace Knute Johnson. But Ace was actually born back on June 30, 2013, so he's more than 6-months-old now. Ancient!

On January 4, mom tweeted the black-and-white photo shown of Ace, writing, "My snuggle bug..."

He's a serious little snuggle bug!

Back in August, Jessica was on the cover of Us Weekly with both Ace and her daughter Maxwell Drew, and Ace had a look of deep introspection. In October, Mom shared a photo of Ace at age 3 months, and he was similarly serious. In November, the entire family — including dad Eric Johnson — was photographed in Dallas and Ace just has the best expression. Everyone is looking into the camera except him, but he looks very interested in something off to the side. Adorable!

Ace’s big sister Maxwell is going to turn 2 on May 1. And 2014 should also ring with wedding bells for his parents. As Jessica explained in a recent Weight Watchers ad“Knowing that I have the wedding coming up is definitely an incentive to stay on my Weight Watchers, keep counting my points, and stay in the gym. I mean, when you see my dress, you’ll know.”

We can't wait! Maybe her mini man is just saving his biggest smile for when he sees Mom in her wedding dress too?

Source: Jessica Simpson on Twitter