Either these two have decided that carpooling is the way to go, or they're trying to sneak around town after yet another sexy sleepover! Based on all the evidence that's presented itself over the last week, we're going to go with the latter...

On Saturday afternoon rumored lovers Sean Penn and Charlize Theron were snapped cruising around in her Lexus SUV, and interestingly enough, it was Sean who was behind the wheel.

Charlize stayed at Sean's beachfront home in Oahu last week to ring in the new year, and the two even took the same flight back to the mainland on Wednesday night. On Thursday morning X17 photographers snapped Sean leaving Charlize's Los Angeles home, so it seems to us like they're more than just friends. But when are they going to come out and say it?!