Hardly a monogamist, Kim also is pairing her funky hats with DKNY this season and has had past flings with Ralph Lauren, Diane von Furstenberg and Catherine Malandrino.
Flirtation: "I've known Michael for a long time," said Kim, who for Kors made sporty yet chic canvas visors in white and pink, yellow and orange.
Matchmaker: Michael Kors' senior vice president of accessories design, Richard Sinnott.
Match.com: "We did everything over e-mail and phone, so it was a pretty simple, direct collaboration," said Kim.
The future: The jury is still out on whether the visors will be available at retail.
The couple: Swarovski and the Youngins
Sugar daddy: This accessories serial dater has been sponsoring up-and-coming designers for more than 10 years. This season, the brand is launching Atelier Swarovski, a collection of runway-ready crystal accessories designed by Rodarte, Phillip Lim and Doo-Ri Chung.
Dating tips: "We look at people's past works and try to access creativity and appreciation of crystal, as it's essential to use it in a striking way," said Nadja Swarovski, vice president of international communications at the crystal company.
"Swarovski told me about the Atelier project a while ago," said Chung, who will show her crystallized bracelets, necklaces and collars on her runway. "I submitted sketches and they really liked the direction.
Challenges: "When I think of jewelry, I'm not familiar with the language, so I brought in fabrics and got inspired by them," said Chung.
The future: The $400 to $1600 collections will be available this spring at high-end retailers, including Colette, Maxfields and Corso Como.
The couple: Faraone Mennella and Carolina Herrera
Perhaps the most monogamous couple on the list, these two are peas in a pod when it comes to their runway relationship.
First date: "We were asked to do a few pieces for Carolina's fashion show two years ago," said Faraone Mennella co-designer Amedeo Scognamiglio. "And it went from doing some exclusive pieces at her boutique to becoming a consistent business."
A Stella McCartney sketch of a custom dress made from protein-based silk in partnership with biotech lab Bolt Threads. The dress will be displayed at The Museum of Modern Art's upcoming design exhibition, "Items: Is Fashion Modern?"