This time, they get just a little too caught up in there fun and stop just a moment too late. A massive load erupts from their captive cock catching them by surprise and startling them with its volume and power. They laugh despite their game being ruined, after all, he waited so long and all he got was a ruined orgasm. Still he wasn't supposed to cum so they make up for it by continuing to stroke his sensitive head while he is helpless to stop int and they see the agony in his eyes.
Maybe it's ok that he managed to cum, After all,there is always tomorrow, and the next day and the next day....