Both her babies! Pregnant Ciara is all smiles as she gives two-year-old son Future Zahir Wilburn a piggyback ride

Ciara posted a sweet Instagram photo on Saturday starring both her children: her two-year-old son Future and the baby percolating in utero.

The 31-year-old had slid into a tight black T-shirt that emphasized her bulging baby bump and featured a neckline that bared a faint trace of cleavage.

Meanwhile, her child by her ex-fiancé Future straddled her back and held a stuffed Mario toy as she stood at the bottom of an outdoor staircase.

'Back Rides and Walks Down Sunset': Ciara posted a sweet Instagram photo on Saturday starring both her children: her two-year-old son Future and the baby percolating in utero

'Back Rides and Walks Down Sunset': Ciara posted a sweet Instagram photo on Saturday starring both her children: her two-year-old son Future and the baby percolating in utero

'Back Rides and Walks Down Sunset... #HappySaturday,' captioned the singer, who's expecting by her husband Russell Wilson.

The Austin native and her Seattle Seahawk spouse have been married since last July, having thrown their wedding at the 19th century Peckforton Castle in Cheshire.

Though it's Ciara's first marriage, Wilson had previously been tethered in matrimony to Ashton Meem from 2012 until 2014.

The man behind the bump: The singer's expecting by her husband Russell Wilson, whom she's been married to since last July

The man behind the bump: The singer's expecting by her husband Russell Wilson, whom she's been married to since last July

Ciara and Future had affianced in October of 2013, seven months before their son was born, but they'd broken the engagement by August of 2014.

Having announced her pregnancy last October, Mr. and Mrs. Wilson know both the due date and sex, but won't divulge either publicly, as he's told Extra in January.

He also revealed to Mario Lopez that a name's been settled on, saying: 'It will be a good one. We both have some creative sense, so it’s gonna be cool.'

The way they were: Ciara and Future had affianced in October of 2013, seven months before their son was born, but they'd broken the engagement by August of 2014

The way they were: Ciara and Future had affianced in October of 2013, seven months before their son was born, but they'd broken the engagement by August of 2014

Last November, Ciara had told E! News a bit about the cravings she's been undergoing, dishing: 'Water with lemon has been my thing.'

Her affinity for the combination's got to the point that 'I have moments where I drink water with no lemon and again I'm like...oh. I'm trying to find my rhythm.'

Meanwhile, 'I also love huevos rancheros in the morning right now, and Acai bowls. I love to eat and I enjoy it and I take advantage of it when I'm carrying.'

Keeping mum: Having announced her pregnancy last October, Mr. and Mrs. Wilson know both the due date and sex, but won't divulge either publicly

Keeping mum: Having announced her pregnancy last October, Mr. and Mrs. Wilson know both the due date and sex, but won't divulge either publicly

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