Watch them go at it.

The two cartoon chicks licking each other out is one of the hottest things you've ever seen, so you sit down in a nearby chair and start masturbating as you watch.

Man, they're really getting into it!  They're moaning like whores, pussy juice smearing on their faces... you're jerking off like nuts, watching that.

"Oh Ariel, I'm about to cum!" Cries Belle.

"M-me too, B-Belle!"  Answers Ariel, shivering with pleasure.

You're about to cum too, but you yell "Stop now!  I've got an idea!"

Reluctantly, as they are so close to orgasm, they obey.