As a kiddie actress, Allison Mack grew up in front of the cameras without a single memorable role. All that changed when she matured into the WB’s Smallville. As girl reporter Chloe Sullivan, Allison passes as a high-school hellcat competing with pal Kristin Kreuk--as Lana Lang--for the affections of Tom Welling’s young Clark Kent. Kristen’s lovely and luscious, but there are plenty of male fans who get weak in the knees over Allison. Maybe she’s packing kryptonite in some intimate places. And check out the amazing pics where Allison’s flat on her back and showing off some titanic titties in a low-cut red outfit. It looks like she’s got two of Lex Luthor’s heads crammed in there!