By Brandi Fowler
Updated: Jul 13, 2016 @ 7:23 pm

Madonna's kids have grown up so fast. On the heels of her 19-year-old daughter Lourdes Leon's modeling debut in Stella McCartney's new ad campaign this week, the iconic pop star shared several sweet snaps of herself hanging out with Leon and her other three children during their trip to Africa this month.

In one sweet snap, Madonna strikes a smiley pose with her kids Mercy, 10, and David, 10, while spending time in Kenya. In the shot, the mom rocks a neutral fedora paired with a collared shirt complete with a bow, and a black vest, as Mercy flashes a smile and David strikes a fighting pose. "Join Mercy, David and myself at the New Pediatric Surgery Hospital in Blantyre adjacent to Queen Elizabeth hospital. First of all help us think of a name for the hospital and Secondly. Would you like to sponsor a nurse or a clinical officer?? If so check out our website @raisingmalawi," she captioned the photo.

Madonna went on to share another smiley snap of Mercy, this time with the pre-teen flashing a smile with plenty of greenery in the background. "Happiness is Contagious in the Warm Heart of Africa. @raisingmalawi," the pop star captioned the photo.

RELATED: Madonna Shares Rare Pics of Children Mercy and Rocco as She Continues Her Visit to Africa

Happiness is Contagious in the Warm Heart of Africa. 💛🌎❤️🇲🇼 @raisingmalawi

A photo posted by Madonna (@madonna) on

As the group continued their trip, they headed back to the orphanages where David and Mercy lived – Home of Hope and Kondanani Children's Village, respectively, and Madonna's 15-year-old son, Rocco, and Leon came along too.

Mercy makes new friends at Home of Hope in Michinji! ❤️ 🇲🇼 Malawi !

A photo posted by Madonna (@madonna) on

"Oh Africa you have filled our hearts with joy and appreciation!," Madonna wrote alongside a photo of herself wearing combat boots and rolled-up, off-white pants as she strolled along with Rocco, who brought his camera with him.

Oh Africa you have filled our hearts with joy and appreciation! 🙏🏻🌍☮💘😂🐘

A photo posted by Madonna (@madonna) on

In another heartwarming photo, Leon sits amongst a group of children who play with her hair and seem to be fascinated by her. "So many Beautiful Moments! @raisingmalawi," Madonna captioned the snap.

So many Beautiful Moments! 🌍💘🇲🇼 @raisingmalawi

A photo posted by Madonna (@madonna) on

Indeed. Take a look at more of their family photos from their trip to Kenya, which has had a charitable ring to it. While there, Madonna has discussed ways to help eliminate maternal and child mortality in Kenya with community leaders and also looked over the architectural plans for a new pediatric hospital set to open there in 2017, among other things.

Squad ❤️ Rocco at Home of Hope In Michinji 🇲🇼🇲🇼

A photo posted by Madonna (@madonna) on