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Jessie James Decker, Eric Decker, Instagram

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Looks like somebody's excited to be a big sister! 

Jessie James Decker is pregnant with her second child, E! News confirms. The 26-year-old beauty, whose husband is NFL star Eric Decker, announced the news via her Instagram account on Monday, sharing an adorable family photo alongside the exciting news. 

"Vivianne is so excited because she is going to be a big sister! We are over the moon about having another baby!!!" the soon-to-be mother of two captioned the aww-worthy shot. 

Eric and Jessie's wee one will join 11-month-old daughter Vivianne Rose in the family fold; the Deckers welcomed their first child on March 18, 2014, and clearly, Jessie adores being a mom. 

PHOTOS: Cutest kids on Instagram

Jessie James Decker and Baby

"I just love just everything about it," Decker previously gushed to E! News. "It's just the most incredible thing in the world...Every five seconds my husband and I go ‘Oh my god! Have you ever seen her do this before?!' and it's just an amazing experience for the two of us."

Following the birth of her first child, Jessie admitted she was in no rush to lose the baby weight, despite gaining over 50 pounds while pregnant with Vivianne. 

"I've not been killing myself to lose weight because it's ridiculous," she told E! News in October. "That's a lot of pressure and I understand a lot of women do that but that's not how I roll."

Still, Decker was back in her size 25 jeans less than five months after giving birth, which she attributes to both genetics and hard work. 

PHOTO: Jessie James and daughter wear matching bikinis

Eric Decker and Jessie James Pucker Up

"I gained 55 pounds [while pregnant] and so there was a little phase in there where I was just sitting at a weight and I was uncomfortable," she shared. "So for about four to six weeks, I was on the StairMaster every single day and eating a little better."

As for her final thoughts on her adorable daughter Vivianne? 

"I'm honestly so obsessed with her," the singer previously said. "She's the best thing I've ever done in my life. It really is." 

Aww. Congrats to the happy family!