Diggin' out

The two friends went to a secluded beach. There was no other people around. The girls had a great time tanning in the nude and playing tag on the flats at low tide. Then they find some quicksand and were amazed how it's bouncing. They bravely contested who can go in deeper (they knew from the Internet that they can't drown in quicksand). Then the loser got out, while the winner remained pinned to the place. The upper layer of the quicksand remained unstable, but the sand compacted in the depth, and grabbed the girl's feet with its firm grip.

It took some time before they realized that the situation is not that funny. Sooner or later the rising tide will come (they had no idea when this should happen). As the time is running, the rescuer is digging and paying no attention to the fact that her legs also sink in the sand. But the victim still can't budge her feet. And when she doesn't lean on her friend's back, she's still sinking. Now she's watching the surf. The tide is rising! Slowly but steadily.

The line art: billie-bonce.deviantart.com/ar…