West, ever the doting dad-to-be, accompanied his pregnant girlfriend to the airport, where she boarded a flight back to L.A. (The rapper, 35, stayed behind to continue work on his new album.)
Both stars kept their outfits casual and mostly fuss-free. Kardashian, 32, looked uncharacteristically dressed down in a loose black cardigan, black pants, a black top, and black sneakers -- a noted change from her usual sky-high stilettos. Her beau, meanwhile, donned a gray hoodie, jeans, boots, and a leather jacket with fur trim.
Prior to Kardashian's Tuesday departure, the couple -- who are expecting their first child together in July -- enjoyed a fun, activity-packed weekend. On Saturday, March 30, they raced around the European metropolis in a sleek black Porsche, a source told Us Weekly.
"It's a really sports, powerful car, and Kim was loving it," the insider said of the first-time mom-to-be. "She might be pregnant and preparing to settle down, but she was determined to act like a sporty girl-about-town."
Two days later, the pair ditched their flashy ride for a more low-key shopping trip to Bonpoint, a French children's store, where they presumably looked at goodies for their unborn baby.
No doubt the trip was a welcome escape for Kardashian, who has faced criticism and bullying for both her weight and her taste in maternity wear. "It's funny because Kourtney warned me that when I get pregnant, people's opinions will be on an all-time high and everyone will chime in!" she wrote on her blog last month. "So I now see what she means."
A source told Us that the negativity was taking its toll on the mom-to-be, but another insider said she's "finally accepting her body and getting more comfortable. She doesn't feel sexy, but she feels feminine."
"I feel my best when I am in heels and chic clothes!" she explained on her blog. "Happy mommy, happy baby!"
For more on how Kim is fighting back against the haters, pick up the new issue of Us Weekly, on stands Friday.