See the Precious Moment Kate Chastain's Son, Sullivan Cay, Made His TV Debut (VIDEO)

Kate Chastain’s son, Sullivan Cay, just celebrated a huge milestone. How? Well, the little one has officially made his television debut.

In the Couch Talk With Captain Lee and Kate preview clip above, Kate surprises Captain Lee Rosbach by bringing in her baby boy to join them on the show.

Get details on Sullivan's Couch Talk debut and hear Captain Lee’s thoughts on Kate's son by scrolling below.

Captain Lee Rosbach meets Sullivan Cay on Couch Talk as He Makes His TV Debut

During a brief break from dishing on all things Bravo, Kate tells Captain Lee that a “very exciting” guest is ready to make their appearance right before she takes off to grab the little man of the hour.

“He dressed up just for you,” Kate says while holding her son, who was wearing an adorable mini-captain outfit. Judging from Captain Lee’s reaction, he was shocked by Sullivan’s cameo and attire of choice as he happily smiled while admiring him.

“So nice of you to be awake while I’m here,” Captain Lee tells Sullivan before Kate jokingly admits that her son is usually on “anchor watch.”

Naturally, Captain Lee asks Kate to hold the “perfect” baby boy, which he does for a few but is cut short due to Sullivan crying out for his mama bear.

“That means he’s happy,” Kate explains with a sneering look on her face, to which Captain Lee responds, “Yeah, I can tell. He wants mom.”

Of course, with Captain Lee and Kate having a tight-knit bond, he also takes the time to share how proud he is of her by saying, “You did good.”

Kate’s response? “Thank you, totally worth the nine months,” she admits, which garnered a chuckle out of Captain Lee.

What else has Kate Chastain and Baby Sullivan been up to?

Fresh from making his TV debut, Sullivan recently celebrated his first time experiencing the autumn season. Over the weekend, Kate shared a video of the two hanging out by a dock while enjoying the slight temperature change in South Florida.

“It dropped below 90 degrees today so obviously we’re out celebrating the start of Fall,” Kate captioned her October 15 Instagram post. In the clip, baby Sullivan can be seen chilling in his mom’s baby carrier and taking in the scenic coastal views as Kate recorded them.

Kate Chastain reflects on how her life has changed

It’s been a monumental year for Kate with the birth of her first child, and she made sure to reflect on the process in August when sharing an update on her son.

On a past Instagram Story, where she snapped a photo of Sullivan clasping his hands together, she took a moment to digest how much her life has changed in one year.

In Kate’s caption, she wrote: "Just thinking about how this time last summer I had just returned from trips to the south of France, horseshoe bay and Newport."

Couch Talk with Captain Lee and Kate

Fan-favorites and longtime friends Captain Lee Rosbach and Kate Chastain breakdown the biggest moments of the week on Bravo. You can check out highlights from the season in the playlist at the top of the post and watch every episode now on Peacock, on BravoTV.com, or in the Bravo app.