(Photo by Dimitrios Kambouris/Getty Images for Victoria's Secret)NEW YORK, NY - OCTOBER 16: Model Karlie Kloss attends the 2013 God's Love We Deliver 2013 Golden Heart Awards Celebration at Spring Studios on October 16, 2013 in New York City.
(Photo by Andrew Toth/Film Magic)PARIS, FRANCE - SEPTEMBER 26: Karlie Kloss A model prepares backstage prior to the Balmain show as part of the Paris Fashion Week Womenswear Spring/Summer 2014 on September 26, 2013 in Paris, France.
Kloss is the face of the Marc Jacobs fragrance Lola.
She has walked for numerous designers in New York, London, Milan, and Paris, including Shiatzy Chen, Calvin Klein, Karl Lagerfeld, Marc Jacobs, Zac Posen, Givenchy, Gucci, Valentino, Louis Vuitton, Versace, and Elie Saab.
Joshua did post a faraway shot of his girlfriend in an unidentified (but exotic-looking) location on his birthday.
See photos of Karlie Kloss through the years NEW YORK, NY - FEBRUARY 10: Model Karlie Kloss wearing a black coat, black turtleneck, black jogger pants outside Calvin Klein on February 10, 2017 in New York City.
(Photo by Gonzalo Marroquin/Patrick Mc Mullan via Getty Images)CAP D'ANTIBES, FRANCE - MAY 19: Karlie Kloss attends amf AR's 23rd Cinema Against AIDS Gala at Hotel du Cap-Eden-Roc on May 19, 2016 in Cap d'Antibes, France. Benett/amf AR16/Dave Benett/Wire Image)CANNES , FRANCE - MAY 13: Karlie Kloss attends the opening ceremony and premiere of 'La Tete Haute ('Standing Tall') during the 68th annual Cannes Film Festival on May 13, 2015 in Cannes , France.
(Photo Luca Teuchmann/Wire Image )LONDON, ENGLAND - DECEMBER 02: Victoria's Secret model Karlie Kloss seen backstage prior the 2014 Victoria's Secret Fashion Show on December 2, 2014 in London, England.
(Photo by Don Arnold/Wire Image)LONDON, ENGLAND - DECEMBER 05: Model Karlie Kloss poses in the winners room at The Fashion Awards 2016 at Royal Albert Hall on December 5, 2016 in London, England. Wilson/Getty Images)NEW YORK, NY - NOVEMBER 07: Karlie Kloss at the 2016 CFDA/Vogue Fashion Fund Awards at Spring Studios on November 7, 2016 in New York City.He and Ivanka Trump were already married when Karlie and Joshua began dating in 2012. - @atticuspoetry ❤️🤓🎂🍪❤️ Happy birthday to my best friend and partner in crime.The past 5 years of our adventures together have been some of the best memories of my life.(Photo by Gary Gershoff/Wire Image)NEW YORK, NY - JANUARY 10: Model Karlie Kloss attends the 2012 YMA Fashion Scholarship Fund Geoffrey Beene National Scholarship Awards dinner at the Waldorf Astoria Hotel on January 10, 2012 in New York City.(Photo by Charles Eshelman/Film Magic)NEW YORK - FEBRUARY 13: Karlie Kloss arrives at The 20th Anniversary of Next Models Hosted By Artistry at Marquee on February 13, 2009 in New York City.