Mommy has desperately been trying to get pregnant with your dad for months but nothing was working. One day, you walk in on Mommy crying, she reluctantly tells you that she’s had an argument with your father because he finally told her he had a secret vasectomy and that’s why she hasn’t been able to get pregnant. You discuss options with her but Mommy really wanted to continue the family line with hers and your fathers genetics. She jokes that “Short of using your cum, there’s nothing you can do”. You think about this for a second and then offer to get Mommy pregnant to make her feel better. Mommy says no, it’s wrong and what would people think? Eventually she gives in, telling you that it has to be a secret. No one can ever find out about the special relationship you have with mommy. Mommy starts off by sucking your cock, so much like your fathers but bigger! She gets so turned on and tells you that she can’t wait any longer. It’s time to knock up your mother.