Not too bad
This is really not too bad at all. Although you could improve some aspects... I'm sure you know what I mean.
Anyways, here's my story.
Once upon a time, there was a lousy kingdom called cave. Everything was peaceful in cave until one day a hot creature called John attacked. John had the Cock of a/an Duck and the Penis of a/an Goose. He destroyed the whole kingdom and took the princess hostage. It was up to one fat knight to save cave, and that knight's name was Tom. As soon as Tom heard that the kingdom was being attacked, he got his lucky Red armor and started riding his Hippo to John's lair. He took his skinny sperm and fucked the beast's Vagina. The beast screamed asshole!!! And then shited at Tom almost killing him. Tom used his last bit of energy to ran John away. Thanks to Tom, the kingdom of cave was saved and Tom and the princess lived happily ever after.
Again, not too bad at all.