By Jonathan Borge
Updated Sep 20, 2016 @ 4:30 pm
Sarah Michelle Gellar
Credit: JB Lacroix/WireImage

If you pay close attention, 39-year-old actress Sarah Michelle Gellar takes to Instagram to show off her sharp wit with silly pictures and equally smart captions.

That’s what she did on Tuesday, when the proud mother-of-two used the social media platform to wish her and husband Freddie Prinze Jr.’s son Rocky James a happy 4th birthday. “I’m knocked out, that you are already 4 years old #ThisIs4 #HappyBirthdayRocky,” she wrote alongside an adorable picture of the little tike inside of a gym. In the shot, he wears way-too-big red boxing gloves and looks prepared to punch it out for mom.

In addition, Gellar shared a quote from author Jodi Picoult explaining that the loving message “completely sums up the love I feel for my children.” Sure, all eyes may be on little Rocky today, but he’s not the only member of the household reaching milestones this week. Just a day earlier on Monday, mom also shared a too-cute throwback of herself holding her daughter, Charlotte, who just turned seven.

“Sometimes when I need a miracle, I look into my daughter’s eyes, and realize I’ve already created one,” she wrote in quotes as the caption to the celebratory birthday ‘gram.

Talk about one happy family!