Olivia Culpo’s epic bachelorette weekend wasn’t without a fashion hiccup.

Just ask the Sports Illustrated Swimsuit alum’s younger sister, Sophia Culpo, who said Tuesday that a “wardrobe malfunction didn’t stop” one night from “carrying on.”

“You can’t even tell I’m being held together by a safety pin — literally not figuratively,” Sophia quipped on Instagram, where she posted a series of pics that featured her modeling a backless pink dress.

“Although I feel like that’s an accurate statement for how we all felt by day 3 of this bachelorette.”

In a separate TikTok video, Sophia can be seen pinning the side of the bright pink sheath.

“Twerked a little too hard last night,” she wrote in the clip’s caption, along with the hashtag “wardrobe malfunction.”

Sophia, 26, and older sister Aurora Culpo were among the many who traveled to Mexico over the weekend to celebrate Olivia, who is engaged to 49ers running back Christian McCaffrey.

McCaffrey, who proposed to the former Miss Universe winner in April, even surprised the bride-to-be with a stunning fireworks display.

“Message to my younger self: good guys do exist,” Olivia, 31, gushed on TikTok.

McCaffrey, 27, and Olivia have been together since 2019.

As for Sophia, she has moved on following a messy breakup with Dolphins wide receiver Braxton Berrios earlier this year.

Olivia recently told her Instagram followers that while she has not met Sophia’s new beau, she’s hopeful “he is the nicest man in the world. Or else!!!!!”

“Haha I’m kidding but truly I have so much anxiety when it comes to my sisters’ love lives. I never want to meet anyone too soon because it’s hard for me not to go Mr. Focker on them,” she said in a recent Instagram Story, referencing the “Meet the Parents” franchise.

Sophia previously revealed that her new boyfriend is a lawyer.

Berrios, meanwhile, is dating beauty influencer Alix Earle.