So an idea.
Pm the person above a link to a cockhero/ try not to cum porn video and a punishment for failing. Then posts here to say that they have pmed and are awaiting their challenge. (they can also post the punishment if they wish)
For example
Person A- I'm in and have sent the video link.
Person B- sends a link to person A via pm and details of punishment (if you cum early you must ruin and eat it etc).
Then they post here saying they have pmed person A.
Person C sends a link to person B via pm and details of their punishment (if you cum early you must wear panties until you next masturbate) then posts here saying they have pmed person B
And so on
Remember to keep people's limits in mind when pming their punishment.
And as there's no one above me I'd be happy to take on the first challenge