In the photo, the actress can be seen with her eyes closed, giving the cream-coloured pooch a kiss.
Alongside the photo, Michelle, 26, wrote: "Me and my youngest AKA Naughtiest! #pippy."
Pippy was bought as an engagement present for Michelle by her ex-fiance Max George in 2011.
But, following their split, Michelle got full custody of the pampered pooch, who is joined by dachshund Phoebe.
Michelle and her dogs now live with ex-TOWIE star - and Michelle's fiance - Mark Wright.
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Mark and Michelle's romance in pictures: