Commenting on the image, one fan wrote: "Next time you photoshop your pictures make sure you’re not sitting in front of a pillow with stripes ;)"
"Photoshop fail Kylie," said another.
"And the gap between her arm and knee....clearly supposed to be leaning on that knee," exclaimed another shocked fan.
In the second snap, the pair are seen walking through a tropical garden.
Again, fans picked the photo to pieces, as the pics have obviously been altered to change the girls' figures - with the sloping lines of the paving giving the game away.
The photoshop fails come after Kylie came under fire earlier in the week for posting a video showing herself and Anastasia flaunting their pert bottoms in matching figure-hugging outfits.
The now-deleted-clip received thousands of comments slamming the reality TV star.
"It looks like a balloon. Pop," one user commented of Kylie's perfectly rounded bottom. "Let's not forget what she looked like when she was 12," said one fan.
"Everything about her body is fake and only the scar on the leg is real," another quipped. "Her body used to be as straight as a pencil and she had no curves whatsoever and now look. I wish [I] was rich smh."
"When is she going to admit her entire body is filled with silicone."