December is the month with the least amount of daylight here in North America, but beaming in to brighten things up: a slew of some of the sexiest actresses around, all of whom made their debuts in December.

Warm up with a list chock full of the most steaming December babies in Hollywood. Sienna Miller is hot enough to melt ice, Britney Spears is one snow bunny we'd love to snuggle up to, and Alyssa Milano nude could get motors running in the most frigid of weather.