You are our evil step-mom, your husband passed away and left all the inheritance to his three sons. But they have a condition to fullfill, because their dad was always worried that the family possesion could get into the wrong hands he wrote the condition into his will, that the sons only get the inheritance, if they could guarantee that they will produce offspring of their own. You their step-mom sees a chance because if they can't fullfill this condition she gets all the money. Your plan is to give them all a special supplement that if they cum within five minutes after they take it, their balls will swell, burst and explode. You go to the first son after taking it and start seducing him. Once you start stroking him he suddenly cums. That was way too easy, you mock him for cumming already... Then you go to the second son and do the same as with the first, but it is harder to make him cum. He nearly gets to the five minute mark but once he sees your tits and you start giving him a titjob it's over for him. The third is the hardest so you start working his cock like crazy, jerking his cock with a blowjob and he finally cums right in your mouth. You smirk after winning, telling them your off to spend all their father's inheritance. You knew that they never stood a chance and the money is now all yours while they will never be able to cum again.Â