Like many stars of the Essex based reality show, Lewis has been keen to get his body back into shape ahead of the show's 12th series, which will kick off in Marbella.
Lewis posed for the selfie with his co-star James 'Arg' Argent, who was recently pictured at the intense fitness training with Britain's Got Talent star Lettice Rowbotham.
The two Essex lads looked to be in fits of laughter as they rested their heads on a pillow. Captioning the photo, Lewis said: "Me+ @RealJamesArgent at bootcamp prep for s12 #TOWIM @itv2 @OnlyWayIsEssex."
Reality star Lewis kickstarted his fitness regime earlier this month when he enlisted the help of glamour-model-turned-body-builder Jodie Marsh! The pair hit a gym in Essex and Jodie even declared that he was going to have "the best body in Brentwood"!
It's actually been quite a hectic month for Lewis, who also attended bootcamp towards the end of March for a short stint.
Arg and Lewis aren't the only ones getting fit though, as their co-star Tom Pearce has also been getting in on the action, and recently showed off his six pack during a morning workout.
The cast are expected to head off to Marbella in June to film the special episode.
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