The two-year-old was pictured on the Duggar family Facebook page holding his baby cousin Henry [the three-month-old son of Jessa Duggar and Ben Seewald] — and he certainly looked happy to have another baby around.
"Izzy is getting in some good practice! Soon, he will be holding his baby brother! Are these two not just adorable!?" the caption read.
According to the comments section, fans were loving this image and pretty much everyone agrees that Izzy will make a great sibling.
"What a precious picture. Izzy will make a great big brother. He is making memories with his cousin. Thank you for sharing," one user wrote.
"So precious! Izzy is going to be an awesome big brother. Nice seeing Izzy getting some practice in! He sure loves his baby cousin!" another agreed.
A third chimed in with, "Awww, sweet Henry looks so happy being cuddled by Izzy."
Scroll through the gallery to see how much the Duggars have changed over the years!