Adam Levine's fiancee Behati Prinsloo won't have any trouble fitting into her wedding gown as she looks super fit in a revealing Emilio Pucci creation that clearly showed she was not wearing any underwear.

Behati Prinsloo, who is set to become Adam Levine's bride, appeared at the 2014 amfAR Gala on Wednesday night in Cipriani Wall Street in NYC, according to E! News. What caught fans and the paparazzi, however, was not the sheer black dress by Emilio Pucci that she wore.

It's what Behati Prinsloo didn't wear that generated buzz, particularly when she posed showing her sides to allow photographers a peek of her sexy body.

Last week, Behati Prinsloo and Maroon 5 singer Adam Levine flew to Los Cabos, Mexico for a quick getaway.

Adam Levine and Behati Prinsloo obviously have fun together as they even reenacted the famous scene from "Dirty Dancing" when he carried her by the waist with outstretched arms while they were on the pool.

According to E!, the couple also spent New Year together in Las Vegas quoting a witness who said that the couple "acted super lovey dovey" even if they didn't keep to themselves.

"Both were very social with the rest of the table. Behati has definitely won over his bandmates-they seemed to love her. The girls, too-everyone was getting along great and having fun," the witness said.

Meanwhile, Adam Levine was among the artists who performed at Howard Stern's 60th-birthday celebration in Hammerstein Ballroom on Friday, January 31.

In a Billboard report, Adam Levine joined Train to cover Prince's signature song "Purple Rain." The Maroon 5 frontman rocked the stage by showing his skills on the guitar.

Adam Levine and Behati Prinsloo announced their engagement in July last year, which caught by surprise those who thought they were breaking up. Behati Prinsloo said the short break was good for her fiancé as he needed time to realize that she's for keeps.

"But he's awesome and we're very happy and we just get each other and I think we realized that after a while," she said. Of course, it doesn't hurt that her fiancé is the "Sexiest Man Alive," according to People's list.