It is very sweet, but not too sweet.
When you are done, the ice cream truck disappears, and the unicorn says, "if you promise to brush your teeth when we get back, I'll be happy to walk you home now."
You say, "I promise -- cross my heart and hope to die, stick a needle in my eye, for I can never tell a lie."
The horse snorts in laughter, and you both walk slowly into the sunset, singing songs and telling stories.
And you lived happily ever after: The End.