If you saw what you thought was a murder on the Internet, what would you do? Who would you call?

Celebrate 12 new ways to enjoy each and every day of the year with Playboy's annual celebration of the world's most desirable women!

In this fourth installment of the series, we have found some of the hottest amateur footage around. Candid, raw and sexy, these "girls next door" have absolutely nothing to hide. Watch closely and you'll discover unique footage of Penthouse Pets Stacy Moran and Linn Thomas before they became stars. Penthouse Sexiest Amateur Video Centerfolds 4 is another gem for your collection.