Janessa has to use the toilet, but she did not realize you were in the shower jerking off. When she notices that her you have such a nice cock, she smiles and it looks like she wants to do something more than simply use the toilet. She comes in for a closer look and then she asks if she can offer some visual stimulation. She is your step sister and you have thought about this happening, but now that it is, your dick is much harder than it has ever been before. She sits nude on the toilet watching you stroke yourself in the shower. Janessa then lends her hand and pumps your big dick for a while. Do you want to cum for your step sister?