Serena Williams and husband Alexis Ohanian have been somewhat guarded when it comes to sharing images of the newest member of the family, Adira, with the public.

But on Thursday the retired tennis legend, 42, took to TikTok and gave her 1.6 million fans and followers a glimpse at a personal but heartwarming moment inside her home.

In the short clip, Olympia can be seen being absolutely adorable with her baby sister, pinching her cheeks while doing baby talk.

Off the top of the clip, big sis immediately grabs at Adira’s left cheek, as Williams gives her new born a kiss on her head and then tries to open a box of cereal while cradling her in her arms

While squealing, Olympia begins to rub her left cheek ever so lightly, and then grabs ahold of her left arm and slightly moves it along to a song she stars to hum out loud.

Sibling love: In a rare appearance, Serena Williams, 42, shared a video of herself cradling baby Adira while her Olympia heaps all of her attention on her little sister

With high-rise buildings in the backdrop of the video, the patient mom remained calm, cool, and collected during her multi-tasking exhibition.

The clip appears to have been shot in the morning hours, considering the 23-time Gran Slam singles tennis champion is dressed in pink and white-patterned pajama bottoms with a matching spaghetti-strap top.

She has her lightened locks flowing down long past her shoulders with plenty of natural curls and a part in the middle.

Olympia looks to be dressed in light blue pajamas and her hair styled in cornrows that are pulled into two ponytails.

It turns out the cheek-grabbing has become more of a trend for Olympia when it comes to showering her sister with attention.

‘Olympia is obsessed with being a big sis,’ the legendary tennis champion began in the caption of the clip, before adding,’ She’s always pinching Adira’s cheeks.’

She also added the hashtags: ‘#babytok #bigsis #siblingsbelike #olympiaohanian #adiraohanian #siblingcheck #siblinggoals #daughters #momtok #momsotiktok #fyp #foryou’

Breakfast time: The clips of Williams with her two daughters appears to have been shot in the morning, considering they’re all in pajamas

Aww: Olympia, six, first pinches Adira’s cheek and then lightly rubs it

Cute: The adorable little girl showed a soft touch when playing with her sister

Big sister: The proud mother says Olympia has made a habit out of pinching her sister’s cheeks

Sweet: Olympia started moving her sister’s arms along to the song she began to hum

Glam time: Later on Thursday, the former tennis champion shared a clip of herself getting her makeup done with the help of a makeup artist

Growing family: Serena Williams and husband Alex Ohanian, 40, announced the birth of their daughter Adira, who arrived on Planet Earth on August 22

Williams announced the birth of their second child with a sweet TikTok video in which she’s holding her newborn with the caption, ‘Welcome my beautiful angel.’

Williams and Ohanian met for the first time in May 2015 over breakfast in Rome. The two were seated next to each other, a coincidence that would ultimately lead to their romance, according to People.

The tennis legend made the first move, asking Ohanian to sit with her and her friends during breakfast — a lovely gesture that was quickly followed up by an invitation to watch her compete in the 2015 French Open.

Ultimately, the lovebirds got engaged in 2016, and then by the end of the following year they would celebrate Olympia’s arrival to Planet Earth and get married.