You’re spying on your step-sister through the crack in the door. She hasn’t noticed you recording her yet - she’s masturbating and you want a video to keep for yourself. She notices you, and your plan is stopped in its tracks. However….you offer to help your step-sister. You want to make your step-sister cum? Erm….sure, but only if you don’t tell. Your step-sister won’t tell on you for barging into her room, if you be a good step-brother and help her cum, considering you interrupted her masturbating. You receive a blowjob off your step-sister, and then you have sex, making her reach her orgasm. Thankyou step-brother, you’re the best step-brother ever!