I Mistook My Brother for My Boyfriend Your sister comes to y.. (OnlyFans)

I Mistook My Brother for My Boyfriend
Your sister comes to your room all thrilled. You ask her what makes her so happy. She brags about being accepted in her dream school. She is going to move out and live with her boyfriend. You don't really care about it but you do care about having to cover for her when she didn't do her chores. She is bitchy about it and says that as she is moving out soon, it's not her business anymore. She is on a hurry as her friend is throwing a costume party tonight. 
Later that night she storms into your room again looking very hot in her Black Widow costume. She leaves a ticket and tells you to give it to her boyfriend and leaves, even though you ask her not to leave you with her boring boyfriend that you can't stand. 
At the party she see you in an Iron Man costume thinking this is her boyfriend. She is in a good mood and kind of horny too. You take a picture of her and then follow her to her friend's room where she starts to dance seductively. She is very surprised her boyfriend is in the mood for once. You pull out your cock and she can't believe how big you are. She starts playing with you but doesn't want to continue until she can see your face. You are hesitant but you finally take off your mask.
She is shocked to see you! It wasn't a turn off events she expected. You laugh that she suggested sucking your cock!
ou ask her if she wants you to send out the pic you took of her partying. That school of hers wouldn't like that, would it? She hates you for that, but she agrees to suck you. She does it without much passion but she changes her attitude after she  realises you were in fact serious. When you're done, you want some more fun. What if you bend over and I fuck you sis? She laughs at your face. You suggest paying for her tuitionand that makes her reconsider. She can't believe she is agreeing to it but she starts undressing. You help her though ripping of her costume. You put your cock in and you start fucking. She is still mad but can't deny that it's pleasurable. After a while her boyfriend calls her, she ignores it but starts having remorse. After a few missed calls she finally picks up and ends up lying to her boyfriend and talking to him with your cock in her mouth. Is she a slut now? Is she a lying whore? You cum in her mouth with her boyfriend still on thee phone. Embarrassed, she returns to the party covering her ass with a sweater.