The rapper, who married Made In Chelsea's Millie last year, appeared confused over the reality star's state of undress.
Perhaps frustrated at his lack of wardrobe space, he cheekily captioned the picture "so. @camillamackintosh has more clothes than anyone I know and yet she couldn't find anything to wear?"
Millie, 25, stars in the magazine's 'Body for life' naked campaign, which will also feature Kimberly Wyatt, Zoe Saldana, Louise Hazel, Amanda Byram, Tracy Anderson as naked cover stars.
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The Quality Street heiress came under fire for posting a body selfie at the beginning of the month, which was jokingly described by Pro Green as 'thinspiration'.
Speaking on Loose women, she said: "I’m really into the gym and a healthy lifestyle and I am always promoting that on my twitter and instagram.
"If you generally follow my instagram you’ll see that I am constantly hashtagging ‘strong not skinny’, posting loads of food pictures."
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Defending her husband- real name Stephen Manderson- she added: ‘He was clearly taking the mickey out of me for posting the picture of myself nearly naked. I’m obviously not his thinspiration.’