Echoing the sentiments shared by countless heavily pregnant women, she joked that "I feel like I have a bowling ball sitting on my hoo ha!"
Gently mocking her big belly, Jimmy Kimmel asked "you sure you're not having twins?" to which she replied, "everybody says that."
Apparently, Jessica's carrying around a lot of amniotic fluid, so "whenever my water breaks it'll be like a fire hydrant!" Kimmel quipped that he hoped her waters would break then and there: "I'd be delighted to deliver your child on television," he laughed.
So, is the "Fashion Star" mentor daunted by the idea of giving birth. "No," she said. "I'm ready to push!"
"Jimmy Kimmel Live" airs Weeknights at 12 a.m. ET on ABC.
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