ke taffany :Either naturally or holding his cum over a long period and then stroke during a long time to make big spurts. (check my reply to Teri_Obsessed)
From my understanding, some guys can do it naturally. Others with some training. One way to acheive this: 1/ Don't masturbate during 10 days 2/ Stroke for a very long time (1h/2h) 3/ Then *explode* !. Spurts guaranteed !
