Calvin Klein Underwear was once synonymous with sexy and suggestive ads. (We need not remind you of the iconic images of Mark Wahlberg in his tighty-whities or a topless Kate Moss, recently re-created by Justin Bieber and Lara Stone.) But for spring '16, the brand has surpassed itself with the latest campaign.In the NSFW images, which were shot by Harley Weir , the brand is going to back to its raunchier, more suggestive roots of past underwear ads. Kendall Jenner squeezes a juicy grapefruit in one shot and seductively strokes a rosebud with her lips in another. There's also an upskirt shot of actress Klara Kristin, a hand-to-crotch shot of Abbey Lee Kershaw, and a scantily clad Saskia de Brauw cuddling a lamb (as one does).Characteristic of past Calvin Klein Underwear campaigns, the clothing is secondary to the shots's provocative poses. The brand explained in a release that the images "capture the current youth culture zeitgeist." As such, some of the accompanying slogans read: "I pulse in #mycalvins," "I belfie in #mycalvins," and "I flash in #mycalvins." So, it's not exactly about subtlety, either.