Jessica Graf and Cody Nickson of Big Brother are married

Big Brother stars The relationship between Cody Nickson and Jessica Graf has always been more than spectacular – and on Sunday, they formalized things, forging ties in an intimate affair of black tie.

"Our wildest dreams have come true today – we are married!" Said the stars of reality TV – who are also expecting their first child – to PEOPLE. "We have always wanted to be surrounded by our family and our closest friends and share this special day with them. We are very lucky to have met each other in the least conventional way, but we did it. We have found our eternity one in the other and we are looking forward to starting this new chapter of our lives. "

Nickson, 33, and Graf, 27, swapped rings by Joey of Hamra Diamonds and did it in front of less than 100 guests (including Big Brother alums Mark Jansen and Elena Davies, and Amazing race costar Conor Daly) at an outdoor ceremony at Chateau Le Dome at Saddlerock Ranch in Malibu.

"Fall in L.A. is so beautiful, so I wanted to dance under the stars all night," said Graf. "I wanted it to drip of flowers, light garlands and a lot of candles. I wanted it to look very romantic. Like a waking dream. "

A special touch was left empty for the loved ones that the couple had lost: his brother Dylan and his late father.

The groom was wearing cowboy shoes with his tuxedo, while the bride was wearing a silk dress with a dramatic train designed by Mark Zunino, carrying a bouquet of black orchids and showing off his little lump. The flower girl Paisley (Nickson's 6-year-old daughter from a previous relationship) wore a pink dress and a wreath of flowers on her hair, but everyone else in the wedding party wore black and guests .

"I know it's very unusual, but I like the quaint feeling of it all," Graf says of the bold choice of colors.

Big Brother Casting manager Robyn Kass officiated the wedding. "We wanted it to be someone who was part of the special process that even brought us here," says Nickson.

"I'm delighted to have officiated at Jess and Cody's wedding," Kass told PEOPLE. "I'm so happy for them."

Once they said "yes," it was time to party – and the newlyweds made sure their friends and family were well fed with a donut wall that also served as a seating table. a popcorn setup, a four-foot-tall cake from Frost It Cakery and a late-night pizza from Big Mama & Papa's. (Plus an open bar Plant Based Mixologist serving everyone except the pregnant bride.)

Angelica Marie Photo photographed the case, which had been planned by Amber Events and rented by Papillon Rentals and White Lilac Rentals, and by XO Bloom. Leo Cabal was the videographer.

For their first dance, the couple waltzed "Shut Up and Dance" by Aaron Watson.

"He sang to me when we were in the Big Brother the house, and we danced there, and it has always been deep inside me as one of our special moments, "says Graf.

The couple met during Big Brother 19 in 2017 and won the season 30 of Fantastic race.

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"There was a long time in our relationship where everything we knew about each other, the outside world was also new," says Graf about their passage Big Brother. "If you were a living feeder, there were no secrets. It was not until we finally spent time alone outside the house where we could get to know each other better, which everyone knew, and I think it was really special.

And after? First, a honeymoon at the Four Seasons of Bora Bora, before they settle into their new home, currently undergoing renovations, in Nickson State, Texas. And, of course, their baby on the way.

"In five years, I'll be my baby probably number three and exhausted. And, hopefully, always pretty, jokes Graf.

"I mean, no matter what we do, we will both succeed," Nickson adds. "So, I do not know what those things are yet. Anyway, we will succeed. And we are going to have a good family, healthy and strong. "