COMPETITION: Think of the story behind this meme, and the best one will get, well, you'll have to win to find out...

There was once a seagull who sold their soul to save their mom. The devil inhaled and said, "You have your self a deal". The seagull died.
The end.

There! Done!

if I did one, I would say:
There once was a seagull, and he was being teased by some humans for being a seagull instead of a person, and they said he had no soul. he said he did, but called for his mommy to come and scare away the bullies. a giant seagull came and pecked the humans in the eye, and they ran away screaming. then the mother seagull scolded her child for going near the humans, but congratulated him on finding the humans' lunch, fish and chips. they ate it and got fat.
the end.

he says he is a seagull with a soul but he gets so mad, he screams at his mom.

Once, there lived a seagull who was bullied by his own mother for always being depressed and having no soul. One day, he decides enough is enough. He sits on top of a building and screams, "I am a seagull, and I have a soul!!!" for everyone to hear. His mom hears him screaming, and flies towards her son. The surprised seagull saw her flying towards him, and he just shouts in shock, "MOM! I didn't know you were nearby!" The two birds forgive each other and then they live happily ever after.

There, that's my story, lol.