If you're feeling naughty this Christmas, or your Kris Kringle gift demands for "something naughty," then Smart Pants iPhone underwear is the perfect gift.

Why would an iPhone be needing underpants?

To Protect Your Homescreen

An ad for Smart Pants says that the phone accessory was meant to protect the home button. The need to protect the home button might still be beyond our comprehension, but we need to agree that the iPhone underwear will make your iPhone look stylish, if not sexy.

To Play Dress Up

Rather than playing dress up with your pet, you can now play dress up with you iPhone, which is a lot cheaper by the way. The pants are on sale on eBay and Amazon at $2.14.

Designs range from plain briefs and boxer shorts to strawberry-patterned panties and animal-print (e.g. leopard and zebra) thongs. You just need to determine the gender of your iPhone.

To Protect the iPhone's "Privacy"

"Make your iPhone charming. Each iPhone is worth the panties to protect its privacy," one seller on eBay wrote.

If you're thinking that Smart Pants will protect your privacy by adding security to your phone, then you understood it wrong. It is quite unclear what the chic phone accessory will protect as it covers little more than the home button, just like ordinary underwear.

To Give the Perfect Naughty Gift

It may be hard to figure out the functional use of Smart Pants, but, it is rather clear than it can be the perfect naughty gift for Christmas. You can choose a design that would fit your love one's personality.