Emma Watson wasn't afraid to indulge in PDA over the weekend in LA. She gave her Perks of Being a Wallflower costar, Johnny Simmons, a big kiss before lunch in Santa Monica Saturday. Emma and Johnny were seen on a walk together earlier this year shortly after meeting on their film's set in Pennsylvania. Sparks must have started flying then between Emma and Johnny, a 24-year-old actor who was raised in Texas. His movie with Emma isn't the first time he's been on the big screen — Johnny's also starred in pictures like Evan Almighty, Hotel For Dogs, Jennifer's Body, and Scott Pilgrim vs. the World. It was a big weekend all around for Emma. She didn't step out for the Teen Choice Awards, but Harry Potter nonetheless won big. Harry Potter received seven honors at the ceremony, and Rupert Grint and Tom Felton were on hand to accept the prizes.