Lucy Mecklenburgh shows off her pert bum in racy lingerie snap

Lucy Mecklenburgh has proved that all her fitness DVDs and exercise regimes *do *pay off - with this racy snap of herself in some saucy lingerie.

The 24 year old seems to be taking part in a lingerie shoot as she captioned the image: "Lingerie shoot .. BEHIND the scenes." And if that doesn't give it away, we don't know what will.

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And last night, the former TOWIE star gushed about how she missed her boyfriend, Louis Smith, who she hasn't seen for about a month.

Clearly showing him what he's been missing, Lucy then shared a sweet 'I miss you' message for her Olympic athelete beau.

"It's been a month only a couple of days to go!!! #longdistancerelationship," Lucy shared on her Instagram.

Louis also shared on his own Insta-page, when he sent his support for Lucy who recently trekked up Kilimanjaro for her fitness business, Results With Lucy.

Oh you two adorable lovebirds!

Louis Smtih and Lucy Mecklenburgh kiss on New Year's Eve: