The Bachelor NZ: Viarni reveals what Zac's like in bed

It was revealed to the world on Sunday night that Zac of The Bachelor NZ chose Viarni as the winner, bestowing upon her a diamond ring.

On Monday morning, the couple appeared on radio station The Edge with hosts Jay-Jay, Dom and Randell - where Viarni faced a very, er, hard question.

"You didn't have an overnight stay on the show, but what do you reckon - is he a good shag?" asked Dom.

Viarni nodded her head emphatically and replied: "[I] rate him."

Although the blunt question about Zac's sexual prowess may have shocked some interviewees, Viarni knew what to expect of shock jock Dom.

"I was expecting this question from you - I was like yep, he's definitely going to ask that," she told him.

Tonight on Three, a special Women Tell All episode will reveal what the ladies of were really thinking. It'll screen at 7:30pm, following The Project.

Newshub.