kiss
kiss
kiss
kiss

Spider-Man co-stars and off-screen loves Emma Stone and Andrew Garfield showed some PDA in Malibu this week, with a hot and heavy make-out session on the beach!

Their stay-cation started Monday, when the pair hit the mall to pick up a sexy swimsuit for Emma. Tuesday we spotted the pair out celebrating Andrew's 29th birthday, with dinner at sushi hotspot Nobu.

Earlier on Tuesday, though, the sexy couple embraced on the beach, during the afternoon hours, while friends and a few other beach-goers looked on. "They were so cute - they look like best friends who are obsessed with each other. It was really sweet when they kissed," our source on the scene tells us.

Both Emma and Andrew caught some waves on a boogie board and played some beach volleyball with friends.

And as the crew headed home after a long, sandy day, Emma donned a t-shirt with her birthday message for Andrew ...

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