Talk about a sweet celebration!

Kevin Jonas and his pregnant wife, Danielle Jonas, celebrated her 27th birthday at Sugar Factory American Brasserie in NYC on Saturday — and Life & Style has all the fun details.

“She ordered chocolate ice cream for dessert, but was surprised when Kevin replaced her selection with Sugar Factory’s colossal King Kong ice cream sundae,” an eyewitness tells Life & Style.

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So what exactly is in that big treat? 24 scoops of ice cream, waffle cones, hot fudge, chocolate chip cookies and much more! Kevin even shared a fun pic of the dessert, captioning the Instagram photo below, “Happiest ever!!! @daniellejonas birthday ice cream.”

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They also dished on Danielle’s upcoming baby shower, which is set to take place later this year. “They mentioned that the company’s signature Couture Pops would be the perfect addition to it,” the onlooker shares.

The reality star proudly showed off her baby bump in a white sweater.

Danielle and Kevin announced their joyous baby news on Twitter in early July. On Aug. 29, the duo revealed they were having a girl via the Jonas Brothers mobile app.

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This is the first child for the pair, who wed in December 2009 after two years of dating.