Christine took to her Instagram page on Sunday to break her social media silence and post a paparazzi picture of herself.
Christine's Instagram account is private but the post has been picked up by a number of media outlets and shared by other public users.
Reps for Argo star Ben previously slammed reports he is romantically involved with the pretty 28-year-old brunette, telling Mirror Celebs: "The story is BS and harmful to many."
US Weekly claim Ben and his estranged wife Jennifer hired the trained nanny earlier this year to look after Violet, nine, Seraphina, six, and Samuel, three, – while they were in the middle of trial separation.