Monique Samuelswashoping to make it to the six-month mark in her pregnancybefore she tolddaughter Milani, 3, and son Christopher, 5,about their sibling-to-be.

But all that seemed to go out the window Tuesday.

“The cat’s out of the bag!” theReal Housewives of Potomacstar, 34, wrote on Instagram, captioning a video of Milani and Christopher as they learned the good news.

They sure couldn’t. In the video, the adorable brother and sister — both dressed in their pajamas — are all laughs, giggling and playing with each other as they absorb the news.

“I’m excited! I want a brother,” Christoper says.

“I want a sister! Then I’m going to be grown-ups. I’m going to feed it with milk,” Milani says.

Dad Chris Samuels is there too, teasing Milani about changing diapers. “Ewww that’s the worst part,” Christopher says as his sister laughs.

Monique Samuels/Instagram

Monique Samuels

She told PEOPLE earlier this month about her plans to keep the pregnancy hush-hush from Milani and Christopher.

“But when I was pregnant with Milani, I didn’t tell Christopher until I was around six and a half months pregnant. I like to do it when I’m further along,” she said, adding with a laugh, “They willbug me about it nonstoptoo, asking me all sorts of questions. I need the break.”

Monique Samuels

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That doesn’t mean she doesn’t have instincts — and ones that are usually right, too. “Early on in my pregnancies, I always get this feeling about what I’m carrying,” she recalled. “So far I’m two for two.”

The Real Housewives of Potomacairs Sundays at 8 p.m. ET on Bravo.

source: people.com