BSpearsKids0612_02_X17.jpgBSpearsLaVegas061208_01_X17.jpgBritney Spears KFederline061208_01_X17.jpg Both Britney Spears and Kevin Federline may be in Vegas at the moment - but their two sons are still right here in Hollywood!

We caught sight of Sean and Jayden playing in Kevin's driveway yesterday afternoon while Britney and Kevin made their way to Sin City - her by private jet, him by SUV. Have fun, boys!