On Tuesday evening, underwear line 2(x)ist paraded male models dressed in skivvies for its New York Fashion Week debut. As it did with its first Los Angeles Fashion Week show in March (with the saucy L.A. Laker Girls), the brand punctuated its runway presentation with unexpected entertainment—this time with a heavier dose of sex appeal (or, at least, skin). Breaking up the Metropolitan Pavilion show, surprise guest Carmen Electra and two female aerialists performed acrobatic stunts.Before heading into the show, organizers asked guests to sign legal documents agreeing not to photograph the surprise guest. The waiver made waves of its own when it was posted on the Smoking Gun, which made light of the document's threat of a $25,000 fine for unauthorized shots.

Carmen Electra at 2(x)ist's show.
Photo: Clark Samuels/Startraks

Carmen Electra was initially asked to model on the runway alongside the male models, but it was her idea to join the aerialists for a hoop routine.
Photo: Clark Samuels/Startraks

Two aerialists performed a seductive routine over the runway.
Photo: Alison Whittington for BizBash

Before and after Electra's show (in a surprisingly traditional touch for a racy brand), models did as expected: They strutted on the runway.
Photo: Alison Whittington for BizBash