LOS ANGELES—Spokespersons for Larry Flynt Publications are scrambling to explain the poor sales of Hustler magazine's first annual swimsuit issue, crammed from cover to cover with beautiful young women modeling the latest sexy swimwear. "We are utterly baffled," LFP public relations director Kenneth Micklos said of the issue, which sold 17 newsstand copies nationwide. "Our readership demographic is overwhelmingly heterosexual and male, with a strong interest in looking at beautiful women. It's a mystery."