The reality TV star uploaded a photo of Michelle's pins, alongside the caption: "Seriously look at my misses pins !! They are a joke !! #unreal #buzzing."
In the photo - which appears to be taken without Michelle's knowledge - all that can be seen are her toned and tanned legs in a pair of blue shorts and white heels.
Earlier today, it was announced that Michelle had been nominated for the Sexiest Female at the British Soap Awards for the sixth time.
Having won the title for the past five years, this will be the 26-year-old's final time to shine because she's leaving Coronation Street this summer.
Judging by Mark's pic, we reckon Michelle's a clear winner!
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Mark and Michelle's romance in pictures:
Copyright: WENN Ratello