I won't pretend to understand advertising, fashion, or women, but when the three come together in a single WTF moment, I can't help but ask the question: do women actually want this? You may have seen the Ambercrombie & Fitch advertisement on the right and asked the same question.
Most of the women I've spoken to over the last 20-odd years about such things certainly enjoy being chased by more than one guy at a time, but to have two guys on you at the same time is not something that would appeal to them. Sex often sells when it comes to advertising, particularly with fashion. Seeing a pair of guys with more muscle than brains feeling up a woman of dubious attractiveness is hardly sexy, though.
Maybe I'm just out of touch with reality.