Hilary Duff is one hot mama!
The "Younger" star took to her Instagram on Saturday to share a snap of her rocking a black two piece bikini while lounging out with her son Luca.
"Max relax," the caption reads.
The "So Yesterday" songstress also shared a sweet black-and-white photo of her son.
"Sun tired/swim tire/life tired/photo tired," she wrote.
The "Cinderella Story" star revealed in June that she's expecting a little one with Matthew Koma.
"Guess what guys! @matthewkoma and I made a little princess of our own and we couldn't be more excited," she wrote on Instagram.
Hilary shares 6-year-old Luca with ex-husband Mike Comrie.
-- Stephanie Swaim