"Happy birthday my little boys," Pataky wrote, "there's nothing that makes me happier in life, than being a mum and watch you growing up everyday!"
From the looks of this hug, it seems like their dad totally agrees.
Hemsworth, who is also father to 3-year-old daughter India Rose, told Australia’s Daily Life
last year that having kids helped him realise the meaning of love.
"The biggest thing I’ve learned by having kids is that now I know what love is. I know what frustration is," he said. "I know the full gamut of emotions, good and bad. I feel I had just scratched the surface prior.”
Hemsworth, who has been married since 2010, also said that having kids made him fall even more in love with Pataky.
"Watching her be a mother made me fall even more in love with her," he told Who
magazine. "All of a sudden, I had a greater appreciation for my wife... She kind of came into her own when we had kids."
Seriously, frontrunner for dad and husband of the year right here.