Ally is Jake's stepsister, they get along for the most part...except for one annoying thing... Jake is constanly making "jokes" about Ally giving him a blowjob.. One day when the two are home alone, Jake once again makes his normal "joke".. Except this time... he finds a way to make sure this joke turns into something he can put into action. Ally has to pee...and REALLY bad... he knows how hard it is for to hold her pee, so he takes this to his advantage. As soon as Ally gives him that blowjob he always "jokes" about....she's free to go piss. To his surprise she agrees and immediately goes down on him..... As surprising as this whole situation was to him...something even MORE surprising happens when he looks down to find Ally had relieved herself in her own jeans.. Jake cant figure why he finds it so hot to see his step sister's face covered in cum, and jeans full of piss.... He doubts this will be the last time... ___________ Let me know what you think :)