Stop - Or Samantha Will Shoot!

Samantha Ronson may have just turned 31 - but she's still a kid at heart!

We caught Sam playing around with a little toy gun as she and Lindsay Lohan climbed into her birthdaymobile Thursday night. Isn't it great to see Sam coming out of her shell a little bit? We always see so much of her together with Lindsay - we'd love it if she'd start acting like a star too!

Don't do it, Sam - you've still got a long life ahead of you!