You may wonder why I am here in your bedroom with a medical specimen container. I'm sure you heard your step-father and I fighting recently. The situation is that he has too low of sperm count to give me a baby. He promised me a baby if I married him. Look how young and fertile I am! I can't give up on the hope of being a step-mom so that is why I am here in front of you. I have to do something desperate before you leave for college soon. You are my hope of becoming a step-mom. No one even has to know. Your step-father will think he impregnated me by some miracle. All I need is a sperm sample to rush to my Dr. for insemination. You are my stepson and I know you want me to be happy. You donating your healthy young sperm will make me very happy if I do indeed become pregnant. You don't have to do anything creepy like fuck your stepmother, all you have to do is lie there and let me work it from your cock.