Heather Rae Young Appears to Respond to Backlash over Son Tristan's Private Jet Travel.

Heather Rae El Moussa (née Young) has responded to online trolls who criticized her social media post about her baby boy Tristan's first private jet trip.

On Wednesday, May 3, the new mother shared a selfie of her holding the three-month-old on her Instagram Stories with the caption, "Protecting our energy."

Two days prior, the Selling Sunset star shared a post about her and husband Tarek El Moussa's adventure taking their "little traveling boy" on his first plane ride. While Tristan is Tarek, 41, and Heather's first child together, he also has a daughter named Taylor and a son Brayden with ex-wife Christina Hall.

"Took Tristan on his first flight ever with Tay and Bray so they could be with us at The Flipping Summit and see us in our element," the reality TV star wrote via Instagram. "Tristan did such an incredible job, and mom tip -- I breastfed him on the way up and then again on the way down to help with ear popping. It worked perfectly, and then the rest of the flight, he just giggled, played and looked around and was so happy [and] didn't cry once … he loved the new environment. He also slept the longest he's ever slept at the hotel, and it was great because in between speaking or in between events, I would rush back to breastfeed him. He was such an angel."

Although Heather was proud of the moment, some of her followers criticized her post, claiming that she was living a more privileged lifestyle than most mothers.

"Try flying like regular folks where you have to get to the airport two hours ahead, park, go [through] security, etc. Lucky you that you don't have to deal with all the stuff 98 percent of us have to deal with," one person commented, while another claimed she was bragging about her luxurious lifestyle.

Shortly after the criticism, Tarek responded to a commenter who defended Heather, saying that "a plane is a plane, flying is flying, she breastfed him before and after, and that's what helped, nothing to do with being in a private jet."

The couple welcomed Tristan on January 31, and Heather shared the exciting news on Instagram, writing that she and Tarek's "hearts [were] so happy."