Congratulations are in order for Ryan Seacrest and his family! The American Idol host took to Instagram on Thursday, June 7, to reveal that his sister, Meredith, is pregnant and expecting her first baby with her husband, Jimmy Leach.

"My little sis Meredith is pregnant! Congrats to her and my brother-in-law Jimmy — they’re going to be great parents 🙂 #TBT," he captioned a throwback of himself, his sister, his brother-in-law, and his parents from Meredith's wedding.

Ryan previously served as the "Man of Honor" at her nuptials back in November 2016. At the time of the wedding, he shared a sweet letter from Meredith, where she asked Ryan to take on the role.

"I'm on my way to say 'I do,' and wanted to talk about me and you. You've been by my side all of my life, and I wouldn't want you anywhere else, when I become a wife. I'm so lucky to have you as my brother, and couldn't imagine celebrating with anyone other. So basically what I'm trying to say… Will you be my Man of Honor on my special day?!" the note read. Ryan captioned the sweet note at the time: "I have a role in my sister's wedding… just shed tear. Love u mere."

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While fans are excited for Ryan to become an uncle, they're a little more interested in his chances of becoming a dad. The TV personality has been dating Shayna Taylor for months now, and while the two haven't quite talked babies yet, Ryan has been vocal in the past about his desire to potentially get engaged.

"I did get close and I didn’t do it and it was the right move. But I love the idea — and I know you’re going to ask me — of marriage because my parents have been married for 47 years, and so I have this thing," he shared someday getting married. "I figure the longer I wait, the older I’ll be, the closer to death I am, so I can get it in… and not screw it up." We think you'd be a great hubby and dad, Ryan!