Mackenzie Dern Flaunting Assets In Bra And Jeans Is 'Fatal'

By Kelly Coffey-Behrens on September 24, 2025 at 10:00 PM EDT

Mackenzie Dern smiling
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Mackenzie Dern took fans down memory lane with a sultry throwback post straight from Ipanema, Rio de Janeiro. The UFC star posed in a celestial black bra paired with casual denim, flashing her toned abs while letting her long brunette locks fall effortlessly around her face. In the caption, Mackenzie Dern shared an empowering quote, "As long as you are what others want you to be, you will not be anyone. As long as you are what others want you to be, you will be no one."

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Mackenzie Dern Rocks Starry Bra In Throwback Snap

The post, which garnered over 64,000 likes, sparked intense reactions in the comments. Admirers couldn't hold back, with one writing, "God damn!" while another swooned, "Wow, you're so beautiful." Others kept it short but impactful, calling her a "goddess" and praising her "beautiful waist."

Fans weren't just impressed by her looks, but they also tied her presence to her power, with one user declaring, "Besides beautiful, it's fatal LOL."

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Dern Stuns In Tropical Beach Snap

Mackenzie Dern once again brought the heat to Instagram with a striking bikini photo taken on a sun-soaked beach in Rio. Wearing a two-toned bikini that highlighted her sculpted abs and robust frame, the UFC star looked equal parts athlete and beach goddess. With her hair tossed back and a carefree smile, Dern exuded confidence as she posed effortlessly against the ocean backdrop.

Fans filled the comments with admiration, calling her "stunning as always" and "amazing," while others simply dropped strings of fire and heart emojis to capture their excitement. One follower summed it up best: "Beautiful."

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Mackenzie Dern Shows Off Her Sun-Kissed Strength

Mackenzie Dern once again proved she's the ultimate beachside beauty in a July 2021 post that racked up over 90,000 likes. Rocking a light blue bikini that highlighted her sculpted frame, the UFC powerhouse looked carefree and radiant as the wind played through her hair aboard a boat. Captioning the photo simply with "Summer vibes," Dern let her glowing smile do most of the talking.

The comments section lit up instantly, with fans dropping everything from flame emojis to heartfelt compliments. "Damn.. hot babe," one admirer wrote, while another declared, "You are so beautiful! Gorgeous." Others echoed the sentiment with strings of heart emojis and praise, calling her "stunning as always."

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Dern Opens Up About Past Weight-Cut Struggles

While Mackenzie Dern has become one of the most respected names in women's MMA today, her early career was marked by challenges on the scale. In 2022, Dern missed weight in two of her first three professional fights on the regional circuit, drawing heavy scrutiny from fans and analysts alike. The criticism intensified after she came in heavy for her second UFC fight, making it the third time she missed weight in just six career strawweight bouts.

But those days are long behind her.

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Mackenzie Dern Says Motherhood Reset Her Body

Dern hasn't struggled with cutting weight in years, something she credits to a significant turning point in her personal life: the birth of her daughter in June 2019.

"My pregnancy really did restart my body and my metabolism and everything. Breastfeeding, I lost so much body fat with that," Dern told CBS Sports. "When I made the transition from jiu-jitsu to MMA, I was doing these different kinds of weight cuts where they want you to lose water weight. In jiu-jitsu, you don't have that. In jiu-jitsu, we weigh in and we fight at the same moment. No one really cuts that way."

She continued, "I started my MMA career doing these different diets. My body and my hormones and everything were getting unbalanced... I lost a lot of muscle mass, too."

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