'Bachelor' Star Courtney Robertson Confesses She Had Unprotected Sex With Ben Flajnik While In The Fantasy Suite -- 'I Was In The Moment. No Regrets.'

Bachelor star Courtney Robertson makes some startling revelations in her new tell-all book and in a recent interview the 30-year-old model confesses she had unprotected sex with former fiancé Ben Flajnik in the fantasy suite while filming the hit ABC show.

While contestants covet an invite to the 'fantasy suite' for some alone time — away from the cameras — Robertson says when she took up during Season 16 with Flajnik, producers left them with a cell phone in case of emergency…but no condoms.

"I was in the moment," she told Us Weekly.

"No regrets."

What's more, Robertson would later learn that Flajnik had already slept with two other contestants.

"I was naïve," she said.

"Knowing I was the last overnight, it kind of makes me cringe."

Robertson and Flajnik went through an explosive breakup in 2012 after she'd accepted the final rose and the wine-making bachelor was photographed kissing other women, before the show's finale had even aired.

"Ben spent more time hanging out with his friends … than by my side," she wrote in her book.