Image courtesy of Victoria's Secret

Last week, Victoria's Secret released its 2010 SWIM Catalogue. The main attraction is Palm Springs girl Lindsay Ellingson in the brand's new topless bikini, "an over-the-top, sexy suit with removable bandeau" that owes something to designer Rudi Gernreich's 1964 Monokini. Today, the Angels have blessed us with a behind-the-scenes video of Lindsay hanging out on Necker Island, Richard Branson's private Caribbean retreat, modeling the suit sans the bandeau top. (Her hair is just long enough to make it safe for viewing in mixed company). The clip introduces viewers to an equation you likely didn't pick up in school: apparently, "Half the Bikini=Twice as Sexy."