Chrissy Teigen admits she never wears underwear, even while wearing the skimpiest of outfits.

The Sports Illustrated model told the hosts of E!'s "Fashion Police," during a live taping Friday, that she prefers to go commando and gave advice for women who would like to do the same.

The model even revealed she was not wearing underwear, on set while taping "Fashion Police."

"I should have tested this..." Teigen said, with her legs crossed, to a stunned Joan Rivers. "I didn't realize sitting would be this bad."

When Rivers questioned why the model does not like undergarments, Teigen replied, "I just don't like it."

The 27-year-old model's dislike for undergarments is so strong; she doesn't even wear them during her menstrual cycle. The model said she hides the string in the crack of her behind or if she is taking part in a fashion shoot she gets her assistant to cut the string so it does not on show

According to the Huffington Post, co-host George Kotsiopoulos who had an upfront and personal view of Teigen's underwear-less bottom Kotsiopoulos screamed "TMI, TMI" several times during Teigen's conversation with Rivers.

Teigen, who is set to marry John Legend in September, has recently collaborated with California-based label Beach Bunny to create a sexy bridal bikini line for her honeymoon in the Maldives later this year, according to the Daily Mail.

"A bridal swimsuit [should] make your man's heart skip a beat," Teigen said. A source recently told the New York Post that the couple will be jetting to Lake Como in Italy for their big day because "that's where they fell in love."

In an interview with Showbiz Tonight in April, Teigen refused to say exactly where her wedding would take place but admitted that "we're going to make people trek somewhere." The newlyweds will then fly to the Maldives for 11 days, where they got engaged in 2011.