Leda and the swan
The only excuse I can give you for the following is that I dreamed it last night. It's a filk of the signature tune of the Disney film "Beauty and the Beast".
Tale as old as time
Walking through the heath
Thought she saw a goose
Doesn't know it's Zeus
Leda's underneath
Wings around her heart
Then the bird is gone
Feel a little joy
Start a war in Troy
Leda and the swan.