It is time that you accept your place in life: as an inferior male who only exists to serve women, you shouldn't even be allowed to be sexually in contact with them anymore. Mistress knows that deep down you desire cum anyway, as much as you protest that you are "straight". You serve no use to women, who are superior to you, and the only amusement you can bring is to be on your knees before another man. Time to learn your true purpose in life.