Justin Bieber And Kendall Jenner Are On Fire In Sexy 'Vogue' Shoot

Justin Bieber and Kendall Jenner are fire together. More on that below.

First, the singer is the latest celebrity to feature in legendary photographer Mario Testino iconic "Towel Series," as seen in Vogue Magazine's online April 2015 #ShapeIssue.

Undeniably grown, Justin turns up the heat in a classic, black-and-white, hands-behind-the-head, ripped torso pose he also showcased on his recent Mens Health cover.

How... why isn't this old yet?

Justin Bieber
(The 21-year-old joins Mario Testino's popular 'Towel Series')

Even after what seems like an epoch of Bieber shirtlessness just on his own Instagram, to his unfairly maligned Calvin Klein campaign, the Karl Lagerfeld-shot V magazine interview and shoot, that aforementioned Mens Health cover, and now the "Towel Series," it seems we still can't get enough of stripped down Biebs.

Testino also enticed some of the singer's co-stars in Vogue's "Meet Hollywood's New Brat Pack" fashion spread -- which he also shot -- to pose for his "Towel Series."

Gigi Hadid and beau Cody Simpson stripped off to share a towel while Kendall played up her exotic eyes using her towel as a head wrap. The quartet are now members of a select club that includes Kate Moss, Miley Cyrus, Jourdan Dunn, Naomi Campbell, Karli Kloss -- and more.

Moving to the "New Brat Pack" shoot -- and by the way, we love the reinvention -- Justin, Kendall, and Gigi are joined by brother and sister, Hopper and Dylan Penn (whose parents are Sean Penn and Robin Wright) and Insurgent's Ansel Elgort --- or as Vogue collectively dubbed them, "the Instagram aristocracy."

A vivid crop of pictures followed. Namely, Jendall on loungers, Gigi and Kendall strutting in the California sunshine or goofing around in gal pal shots, Ansel Elgort doing whatever it is he does, and the Penns looking pained and distanced from the newly-anointed.

Justin Bieber, Kendall Jenner, Gigi Hadid & Ansel Elgort: Vogue Magazine's 'New Brat Pack' Of Hollywood
(Photo: This shot was captioned: "I've been kind of on the low, just working on the new album," says Bieber. "Maybe I've had too much time on my hands," he adds, hinting at his tabloid misadventures. "Now I'm ready to get back on the grind.")

Standout images are Justin and Kendall styling up poolside. The Biebs in designer double denim -- open, of course -- with Kendall in a white, ruffled, Michael Kors bikini.

The money shot? Without doubt, the steamy pas de deux between the singer and newest face of Estee Lauder.

Justin Bieber and Kendall Jenner
(Photo: The caption to the shot reads, "I'm actually an introvert," says Bieber. "But as far as shooting fashion goes, or being onstage - me having to be on - I don't get nervous.")

Justin, seen in a white, unbuttoned shirt, white Calvin Klein underwear, and an expression of epic confusion. All of which is understandable, given that his longtime friend Kendall is all up on him wearing eye-poppingly tight, red shorts and a crop top, with one hand on the Biebs' granite-hard abs.

I mean...

Seriously, when is this rumored Calvin Klein campaign with Justin and Kendall happening? Because right about now would be really, really good.

To see more pictures and quotes from the editorial head to Vogue.com.

[Images via Mario Testino for Vogue]