Everyone, this is my stepsister, and she?s bugging me as hell especially when I?m busy with something important! I?ve been waiting for a long time to repay her with just the same attitude, and today, this day has come. Our parents went out and we were left alone, and my sis needed my help with math. For several hours she?s been annoying me with her endless requests tearfully asking me to help her solve a couple of problems. In the end, I couldn?t stand it: ?Want me to help you? Then I have a job for you. My brain works better when the blood in my body circulates faster, so you need to suck my cock while I?m solving your problems! ? This shook her greatly; she clearly didn?t expect to hear this from her own stepbrother! But I was implacable, so she bent obediently, carefully unzipped my jeans and, just as a caring stepsister, began to suck on my cock.

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