Boyfriend: This view's so pretty, almost as pretty as you...

Girlfriend: You're awfully corny!! I like it. Also, your hand's really low.

Boyfriend: Oh shit, my bad--

Girlfriend: Move it lower.

Boyfriend: Ohh it's like that huh?! Well come here babe--

You make a Noise from behind them and they turn their backs to you

Girlfriend: Wait, did you hear that?

Boyfriend: What the--?! Who's there?!