Two passengers have been publicly shamed after they were snapped playing footsie across the first-class headrests.
A disgusted fellow passenger Laura Lake uploaded pictures of the flirtatious feet after she was disturbed by them on her American Airlines flight.
Those feet, belonging to a man and a woman, were pushing the boundaries of decency.
The act so upset Lake that she began documenting the display on Instagram.
As the feet inch towards each other in the series of images, the bare footed passengers get progressively more adventurous. Not satisfied with merely resting their feet on the divider between them, the woman's foot soon landed on the back of another passenger's headrest.