Don't know if it's staged or not? But judging from the reaction of the "boyfriend" he doesn't look like he's acting at all and quite surprised.
I have a problem with this on many levels.
#1 The girl is way too flirtatious and... no fukking way you're going to say no to her.
#2 She intentionally goes in for the kiss. What is he supposed to do???
Fellas... I need more input on this. I'm surprised he didn't eat her a$$ right there in broad daylight.