I have always wanted to be a mother. I need a good sperm donor. There is no one better than my virgin stepbrother. He has never had sex with a girl. I propose that he donate his sperm load to me inside my vagina. I really want to be pregnant. In return I will teach him how to touch a woman and how to fuck. My stepbrother agrees and starts touching my boobs. I show him my vagina and how he should touch it. He puts his fingers in it and I get very hot. My vagina is wet. It's time to fuck. He puts his big virgin cock inside my vagina. We fuck until he cum inside me. It's his first time, a big load and it doesn't take long for him to cum. Don't worry step brother. Tomorrow I will continue teaching you. I need more loads inside my vagina.