Lots of people post pictures of items they want to sell on eBay. It's a great way to get rid of items you don't want, and for people to get a good deal on gently used items.

That was exactly what Aimi Jones of Oxford, England did. She wanted to sell her yellow dress. Unfortunately, the picture the 21-year-old took of the dress also showed her reflection in the mirror -- a reflection where she was naked from the waist down!

She didn't spot the problem until long after the picture was posted on eBay. By the time she removed the picture it had already been re-posted on Twitter and Facebook. Then it went viral.

Miss Jones said, "It's so embarrassing. It is such a dizzy, stupid thing to do and now the whole world's seen me in the nude." At least she kept her since of humor.

She has since posted the dress on eBay again-- this time cropped so she cannot be seen-- with the message: "As seen by thousands. Never worn naked." Jones also added, "My boyfriend Andy thinks the whole thing is hilarious."

Hmmmm... You might want to double check that picture before you post it online for the world to see!