The actress arrived at the Lacoste L!VE desert pool party in Thermal, California, on Saturday (14.04.12) on her own and happily chatted to Diane Kruger, 35, and her boyfriend Joshua Jackson, 33, in their cabana.
But when her 'Glee' co-star arrived in the private area she jumped up and gave him a huge kiss.
An onlooker told UsMagazine.com: ''He tapped her on the shoulder and she was so excited to see him. She threw her arms around him and they hugged and kissed on the lips.''
Lea, 25, took her twitter account to heap praise on Cory, 29, writing: ''I just saw a really hot 6-foot-3 Canadian with a tribal arm band hanging by the pool. So happy.''
The young couple then left Diane and Joshua and went to their own cabana and continued their canoodling.
The onlooker added: ''Their arms were constantly around each other and they were talking very close.''
The pair went public with their romance around a month ago and recently enjoyed a romantic break to Cabo San Lucas, Mexico.
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