[This was a custom request] Your little sister calls you into her room late one night to confront you about the rumors she's heard flying around school. Apparently, you've been buttfucking a bunch of her friends! She's embarrassed at first, but when you confidently admit it, you don't expect her sudden jealousy. She starts to ask you what anal feels like, she's heard from her friends that you're quite good at it. She starts showing you her boobs and asking if you'll fuck her ass like you do her friends'. You freak out and try to leave, but she's tugging at your waistband and telling you that she'll help you to relax. Before you know it, your cock is in her mouth and you can't move. She feels amazing. She looks right into your eyes and asks if you really want your little sister to go looking for an anal experience with a complete stranger who might hurt her, or if her big brother could teach her safely. She reiterates that she's a virgin and that her arse will be much tighter than all of her friends'. Then, she finally admits that she actually watched you fucking one of her friends one night from your bedroom door... and came hard imagining that it was her that you were pounding into. You can no longer resist her seduction. You ask her to spin around to show you her arsehole where you lick and sniff at it for a while. She tastes amazing and you instruct her to slide a finger inside her butt to taste herself too. She obliges and lets you enjoy tasting and admiring her for a while more, but she's desperate to have you inside her. You position yourself at the entrance of her virgin hole and she panics a little, begging you to go easy on her. You slide inside her gently and she feels inhumanely tight. She squirms around telling you that you feel good but that you're stretching her a little. As you move in and out of her, you feel her begin to adjust to your thickness. Before you know it, her ass is letting you slide right in and she's moaning lots, enjoying your cock inside her. She admits that she is turning into your anal plaything and shudders to an intense orgasm while you plough into her arsehole. She falls over onto her side and lets you continue to use her. She begs you to not hold back and to use her as though she were any of her friend's - just to forget that she's your sister and let go. She begs you to cum inside her arse and you release a huge, sticky load into her belly. As she sits holding her arse open, your cum leaking out, she tells you that she might be obsessed with ass fucking now... and maybe you could do this to her more regularly as she doesn't trust anyone else like she trusts her big brother.
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