Your broke sister has moved back home and is getting on your last nerve. Your folks are trying to straighten her out, so she's only allowed to stay if she behaves herself. She's earned herself a curfew, which you find hilarious seeing as she's a grown woman. What's really grinding you down is that she's in YOUR personal space now. No matter though, you predict that she's bound to blow it as she'll jump at the first chance she gets to go out. Then she's out the door and you're back to business as usually. Just as you expected, when you checked her room you found that she'd snuck out of the window , probably to go out whoring with her party-hard friends. Her escape tactics have left your folks blissfully unaware of her not being present in the house. You have a chance to grass her up, but you don't take it. You decide you'd rather mess with her instead. So you decide to stay up playing video games until she stumbles back in the house. She was mad enough to bring some company with her, however once she's clocked you, she swiftly sends her companion away. At first, she's aggressive and wants to know why you're so obsessed with her business. However, her tune changes when she realises the odds are stacked against her, and she has to convince you to stay quiet. You decide to push her limits. Just how far will she go to keep a roof over her head? In hushed tones, you tell her that she can buy your silence by stripping down. At first, you don't think she'd agree to it. Indeed, there's a lot of protesting and cussing you out, but she has no choice and has to go along with it. Things snowball and before you know it, you're pounding your sister while she covers her mouth to avoid drawing attention to the both of you. After all, she doesn't want your parents to know she's out. Much to the surprise of you both, she begins to enjoy it and cums all over your cock. But you're not done yet! You instruct her in her final humiliation... and get her to suck it clean!