Jessica Graf and Cody Nickson met and fell in love on Season 19 of Big Brother.

Not only did Jessica and Cody become a power couple, but they were also viewed as a huge threat.

The rest of the house therefore spent weeks trying to take them out, and Jessica and Cody had an "us against the world" mentality.

Cody was the only one of the two to make the jury and he ended up winning "America's Favorite Houseguest."

He and Jessica left Big Brother still dating and madly in love, and then they competed on The Amazing Race's 30th season together.

After winning the $1 million grand prize on The Race, the couple got engaged in February 2018 and married in October 2018.

In March 2019, Jessica and Cody welcomed their first child, a baby girl they named Maverick.

In May 2020, the couple revealed they were expecting their second child, a baby girl.

In October 2020, Jessica and Cody announced the arrival of Carter York Nickson.

"Carter York Nickson. Born 05OCT2020 at 2223. 7lbs 2oz 19.5 inches," Jessica and Cody captioned a photo of the swaddled baby on the newborn's Instagram account, which had been used to document Jessica's pregnancy progress and growing baby bump.

Cody also revealed in his Instagram Stories, "Healthy and safe delivery for mom and baby... Thank you for all the prayers!" 

Jessica and Cody's baby was due October 15 so she arrived a little early, according to E! News, shortly before the couple's second wedding anniversary.

In March 2022, Jessica and Cody announced were expecting their third child together in August.

"Nickson Addition 08.2022 @babynickson," the couple captioned an Instagram video on their respective accounts showing footage of the couple, their two young girls, and sonogram images of their baby on the way.

"A lot of you have already guessed it and it's nice to not have to hide it anymore. We prayed for you & now we can't wait to meet you."

Jessica then gave birth to the baby, a boy the couple named Atlas, in July 2022.

Then, in July 2023, announced they were expecting their fourth child together.

"New addition coming January 2024," Jessica and Cody wrote via Instagram in a joint post. "We're probably just as surprised as you are! Can't wait to hold you, little one."

However the couple's fourth child ended up arriving a little earlier than expected in December 2023.

"The last piece of the puzzle is here. Safe and sound," the couple wrote via Instagram Stories on December 12, sharing an audio recording of their newborn crying.

Cody later added, "Jessica and baby are both doing great... thank you for all the prayers."