Actress Park Si Yeon has transformed into a sexy yet innocent 'lolita girl' for her latest photoshoot with 'InStyle' magazine. Although she's been known to be able to pull off a wide variety of looks, the innocent yet sexy look is harder to pull than most as it requires a careful level of balance between each look.  As expected, Park Si Yeon stunned her fans once again with a captivating style. Dressed in form fitting one-piece outfits, she gives a sweet and innocent facial expression towards the camera, all of which brought out endless praise from the staff. In the accompanying interview, the actress revealed her beauty know-hows and her personal style secrets.  Check it all out in the September edition of the magazine. [gallery] Source + Photos: Sports Seoul