Stepbrother asks stepsister how to have sex and she shows him how to fuck her pussy in doggystyle

Stepbrother feels like he is missing something. All his friends are seeming like they know how to have sex with women and stepbrother has no idea where to even begin. He asks his stepsister for help. She jumps at the opportunity. when she sees his big cock she decides she can have sex with him to show him how to do it.