Ethan and Amber Diamond welcomed their first child over the weekend.

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After falling in love on the set of MTV's Are You The One?, Ethan and Amber became engaged in April during the reunion special. Now, after marrying months later, the couple have become parents.

"I have fallen in love once more," Ethan wrote on Instagram on Sunday, along with a family photo. "2014 has been the greatest year of my life and I couldn't imagine ending it any better than by introducing the newest member of our family, Scarlett Avery Diamond. God bless. #thediamonds #christmasbaby."

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Although it is unclear when Ethan and Amber wed, Ethan first began referring to Amber as his "wife" on Instagram in September. At the time, he shared a photo of Amber and her baby bump, telling fans she was his "beautiful new wife."

"She melts my Diamond heart like a warm December morning melts the fresh winter snow," he wrote. "Scarlett Avery Diamond will be with us for Christmas and forever more. Thank you Amber for being simply extraordinary."

Throughout labor, Ethan and Amber kept fans on Twitter and Instagram in the loop with their child's birth.

"Been in labor all day- counting down the hours to meet our beautiful daughter. It's been the most painful yet most magical day of my life!" Amber wrote on Friday.

In another tweet, Amber confirmed their daughter had arrived on Dec. 19 at 11:11 p.m.

Tags: Are You The One MTV Reality TV amber diamond ethan diamond