The bikini-clad mom strutted her stuff while breastfeeding five-month-old daughter Aria. Picture: YouTube

Model Mara Martin stepped onto the runway at the Paraiso x Sports Illustrated Swimsuit fashion show, during Miami Swim Week over the weekend, to much applause.

The bikini-clad mom strutted her stuff while breastfeeding five-month-old daughter Aria.

It's not something fashionistas are used to, but the new mamma took it all in her stride, and looked radiant in a metallic gold bikini, while her baby was cuddling against her mother's breast with noise-cancelling headphones.

"Mara was holding her baby and was nursing her," MJ Day, editor of the Sports Illustrated Swimsuit issue, told Today. "I was like, 'Do you just want to nurse while you walk down the runway?' And she was like, 'I would love to do that.'"

Wow! WHAT A NIGHT! Words can’t even describe how amazing I feel after being picked to walk the runway for @si_swimsuit. Anyone who knows me, knows it has been a life long dream of mine. I can’t believe I am waking up to headlines with me and my daughter in them for doing something I do every day. It is truly so humbling and unreal to say the least. I’m so grateful to be able to share this message and hopefully normalize breastfeeding and also show others that women CAN DO IT ALL! But to be honest, the real reason I can’t believe it is a headline is because it shouldn’t be a headline!!! My story of being a mother and feeding her while walking is just that. Last night there are far more deserving headlines that our world should see. One woman is going to boot camp in two weeks to serve our country (sorry i don’t know your IG handle 🤦🏽‍♀️), one woman had a mastectomy (@allynrose), and another is a cancer survivor, 2x paralympic gold medalist, as well as a mother herself (@bren_hucks you rock) Those are the stories that our world should be discussing!!!! Just thinking about all that was represented there. I desperately need to give the most thanks to @mj_day for this. She supported me in what I did last night. Without her support this wouldn’t even be discussed!!!! She and the entire Sports Illustrated family are the most amazing and incredible team to have worked with. THANK YOU for letting all 16 of us be our true selves, strong beautiful women!!! Because of you, my daughter is going to grow up in a better world, where she will always feel this way!!!!!! Lastly, to every single woman that rocked that runway with me. Be proud. I know I am of you! You all have inspired me in ways unimaginable. I love you all!!! #siswimsearch

A post shared by Mara Martin (@_maramartin_) on

"It was her dinnertime because the show kept getting pushed back," Martin added. "Honestly, I didn't even think twice about it because I do it every single day."

The intimate moment between mother and baby was shared across the world, and Martin's display was greeted with an outpouring of support.