Mmm, ok, now I'm going to really test you. I've got a video for you to watch.
http://youporn.com/watch/283421/busty-erica-campbell-loves-to-tease-your-cock/
It's a tease I do for very good little slaves. It's 7 minutes long which means your job is to edge 7 times for me.
Don't worry, your balls won't be hurt this time... as I want that cock dripping precum. You also need a shot glass to collect any precum from your cock.
You'll definitely need it for the next mistress.