The training of creating a volcano-style impact on the balls. Just take one bottle of a carbonated beverage that you choose, and shake it up before fluid is nearly bursting out of the fizzing. Carefully remove the cap, and rapidly cover the open top with all the balls (try not to allow much environment escape). Benefit from the eruption, bro. The serious back up of seman do in order to the lack of intercourse causing a valcano like eruption through the penis.