Only ET was with Maks and Peta on their 'Confidential' dance tour, where it seems Maks' brother, Val, is enjoying adding more fuel to the family fire.

Only ET got an invite into the couple's private space. They're currently on their 'Confidential' tour with Maks' brother, Val.

In addition to Maks and Peta's love story, the show will also have nods to Val Chmerkovskiy's girlfriend, Jenna Johnson, whom he calls his 'muse.' 'Maks, Val & Peta: Confidential' kicks off March 19.

ET was exclusively at home with everyone's favorite ballroom family, including 14-month-old Shai, who's already mastered his mom and dad's classic moves.

ET was exclusively at the home of Maks and Peta, who are gearing up to hit the road and, perhaps soon, make baby Shai a big brother.

ET caught up with the 'Dancing With the Stars' pros to talk about their upcoming Maks, Val & Peta: Confidential Tour, and they got candid about growing their family.