Cum in your stepsis' mouth

Your stapdad is away with her new wife all day today, and your step-sister is in charge of you. You've been sick for a few days now and your parents made sure she would look after you. She is a nice and dedicated girl; the two of you are getting along pretty well. She prepares tea and cleanses your face with soft gestures, taking care of you as much as she can. However, after a few minutes, she tells you about your own dirty little secret - she knows you've been hiding cameras in her bedroom. She wants you to do it, or take advantage of it maybe. Since you're being such a perv, she asks you to jerk off for her, and then proceeds to give you the best sloppy blowjobs you've had in your life – and it feels so good that you cum three times in her mouth before she eventually leaves you alone to rest.