The reality TV star ditched her usual glamorous outfits for a more laid back look in a baggy, boyfriend style T-shirt from River Island.
Stood in front of her bed, Lauren struck a sultry pose in the black T-shirt, which featured a set of dog's teeth growling on the front.
She captioned the photo: "Rarrrrrrrr #lazysundayattire"
Nevertheless, being an Essex girl, Lauren still managed to make her T-shirt look pretty sexy and she also appeared to have her hair and make-up done for the picture.
Last week, Lauren was seen hitting the gym 'au-naturel' in a make-up free photo that was posted on her Instagram page.
Sporting a cropped black workout top that showed off her toned abs, she captioned the snap: "Sweaty Betty #gym #selfie #summerbody", although there didn't seem to be a drop of sweat on her!
If this is what Lauren looks like dressed down at the gym and for a 'lazy Sunday', it's no wonder that she looks so good when she's dressed up!
What do you think of Lauren's boyfriend T-shirt style? Let us know below!