Ben Affleck’s favorite nanny enjoyed some mile-high fun on a private jet trip to Vegas with the actor and his buddy Tom Brady, while playfully posing with the QB’s four Super Bowl rings.

In the photo, obtained exclusively by The Post, Christine Ouzounian, 28, is wearing the bling along with tight white jeans, a black tank top — and a satisfied smile.

The nanny is clearly relaxed, kicking off her shoes and striking a sexy pose on her seat.

Ouzounian had been in the Bahamas with Affleck, 42, and his unsuspecting, now-estranged actress wife, Jennifer Garner, 43, before the pair’s hush-hush jaunt to Sin City on June 27 for a poker tournament.

Affleck, an avid gambler, had initially asked Ouzounian to join him on a flight back to LA from the Bahamas — while his clueless spouse stayed behind with their three kids, a source said.

“He assured her it was OK. Technically, he was her boss,’’ the source told Hollywood Life.com.

“But along the way, he convinced her to go to Las Vegas with him for [a] poker tournament. They even stopped and picked up Tom Brady for the trip. While in Vegas, Ben hid Christine the entire time.

“When they got back to LA, Jen heard about their trip without the kids and flipped out. She fired Christine right away, and Ben did nothing about it,” the insider said.

Three days after the photo was snapped, Affleck and Garner announced that they were splitting up.

This article originally appeared in the New York Post.