The pretty pair didn't hesitate to steal a smooch from each other while attending Rimmel's 180th anniversary celebration at the London Film Museum on Thursday night.
Ora recently became the new face of Rimmel's latest campaign, while Moss used to be an ambassador herself for the British cosmetic brand.
The two were also joined at the big event by yet another Rimmel gal, Georgia May Jagger, with Ora later tweeting an Instagram photo of the threesome posing for pics.
"Love u ladies @georgiamayjagger #KateMoss #Rimmel tonight was a blast!," wrote the 22-year-old singer. "You can't compete with two gorgeous supermodels! #sexonlegs Rimmel ladies! #werecoming."
Earlier in the week, Ora gave fans a sneak peek at her Rimmel campaign via her Instagram account, and judging from the shots, the Brit babe certainly won't disappoint in the ads.