This mom is a “Fire Bomb.”

Rihanna mastered date-night dressing in New York on Sunday as she stepped out in a bold red outfit with plenty of bling — and her fashion-forward Alaïa set proves her maternity style just keeps getting better.

The “Umbrella” singer — who revealed her second pregnancy in February while headlining the Super Bowl halftime show — joined her boyfriend, A$AP Rocky, for dinner in the designer’s sheer turtleneck bodysuit ($1,180) and skirted pants ($1,330), scrunching up the long skirt over her baby bump to make a shorter look.

She wore her hair in a Pamela Anderson-style updo, sporting a glossy red lip and peach blush along with a lengthy lavender manicure.

Rihanna, 35, added some serious sparkle in the form of a cascading diamond necklace and ring by Messika, carrying a beaded red Gucci by Tom Ford clutch.

In several of the photos, the “Diamonds” vocalist — who wore a pair of crystal-buckled Saint Laurent heels ($1,150) — covered up her ‘fit with a furry black Louis Vuitton jacket that coordinated with Rocky’s black leather look.

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As for the 34-year-old rapper, he sported crystal-embellished jeans with his biker jacket, adding a Harley Davidson tee and dark shades.

The couple’s date night follows a fun (and fashionable) Easter celebration with their 11-month-old son, whose name has yet to be revealed.

The trendy tot followed in his mom’s fashion footsteps for the holiday, wearing custom Chrome Hearts bunny ears and a “one-of-a-kind” double-strand pearl necklace from Amrapali featuring diamonds, emeralds, sapphires, rubies and tourmalines.

With the celebrity child becoming a big brother soon, fans are eager to find out the new baby’s sex — and Rihanna might have given a hint on a recent shopping trip.

The hitmaker was spotted checking out a pink romper while shopping for baby clothes earlier this month, giving all of us hope for a mini RiRi on the way.