If today is the 21st day of the month, watch a random porn that's at least thirty minutes long.
Every time someone says, "Fuck," "Yes," "God," "Please," or "Pillow," pause the video and edge yourself.
Do not touch yourself during any other part of the video.
When it's all said and done, flip a coin.
If it's heads: ruin your orgasm.
If it's tails: cum.