Mark Zuckerberg has always been frank in discussing certain aspects of his personal life on social media, like when he and wife Dr. Priscilla Chan suffered a number of miscarriages before finally announcing their pregnancy with now 15-month-old daughter Max. If his social media is any indication, the Facebook boss is a doting dad (like when he shared baby Max’s first word and first swim last year). Well, hang on to your heart strings, because daddy Mark has announced a new addition to the Chan-Zuckerberg clan, and it’s adorable.

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Taking to (where else?) his Facebook account, Zuckerberg announced that he and his wife are expecting their second child, who will also be a girl. Alluding to his own family, he said, “I cannot think of a greater gift than having a sister, and I am so happy that Max and our new child will have each other.”

In the post, Zuckerberg shared photos of him with his three sisters, and Priscilla and her two sisters, citing their talents and their inspiration to their lives, as well as saying, “We are all better people because of the strong women in our lives — sisters, mothers and friends. We can’t wait to welcome our new little one and do our best to raise another strong woman.”

With such great words from the Facebook boss, we can’t wait to see his announcement when baby number two actually arrives.

What was the sweetest pregnancy announcement you’ve ever seen? Share it with us @BritandCo!

(h/t People; Photo via Justin Sullivan + Adam Berry/Getty)