aoucho,

One of the best Penthouse letters involved a bet exactly like yours. From that story, some additional tasks could be:

1. Take a pie in the face, then clean it up with only your fingers and tongue.
2. A pussy whipping which you have begged for.
3. Suck the cock of a man the winner has chosen.

Other tasks you can get from reading theads in these forums, such as:

4. Insert a cell phone into a condom then into your pussy. You must answer the phone wherever you are.
5. Insert a bottle or can of the winner's favorite drink into your pussy and serve it to her from there (without cumming, of course).