My challenge would be the following:
Everyone has to stuff in an icecube in the pussy ass until it melts, then two, then three and so on until one canīt do it anymore.
The amount of icecubes that you all have taken so far is the number of clothepins you can add to the labia/breast/nipples/... (a good one is also the tongue) of the loser.
The loser has to wear those the same amount it took until she couldnīt handle the ice cubes anymore.
The others then pull off the clothepins after the timer is reached. The longer it takes, the higher the stakes (in time and clothepins) are.
Have fun
