The dress isn't making it over her rear, so her blue lace thong and black bra are exposed.
Apparently, she was struggling to get the dress off for almost half-an-hour.
"When the dress is too big for your body but too small for your ass," she wrote. "I've been in this bathroom for 20 minutes trying to get it off!"
She also added the hashtag "Sample Size Suck My D--k" and emojis representing laughing, being surprised and crying.
This risqué post is a bit out of the ordinary for her, but her fans ate it up. The photo currently has 17,000 likes.
However, it wasn't all that positivity wasn't shared in the comment section.
Many fans noticed the two warped bathroom tiles on her wall next to Osbourne's waist and derriere. The one by the waist is going inward, and the other is going outward. This is a blatant sign of photo editing, and some were not happy.0comments
This wouldn't be the first time Osbourne's been caught photoshopping.
"Hey that's so cool how the lines on the bathroom tiles right next to her waist and bottom are all bendy," one commenter wrote. "Not very fair to present photoshopped images to young women as reality..."