My sister is such a slut and everyone at school knows it. Of course, I see her dressed like one too and ask her what the occasion is. She said she was planning on going to a party but since her friend ditched her so she's staying home instead. Oh I get it. My sister was on a mission tonight to get some dick. Well just because she isn't going to that party doesn't mean she can't still at least suck my dick. I tell her I know she's a slut(she agrees) and I want her to suck my cock and show me her skills. She acts all weird saying I'm her brother but I know she wants too. I tell her it's not like we're having sex. Jeez, it's just a blow job!! I assure her that it really isn't weird and I won't go around telling anyone anyways. Suddenly her face lights up and she agrees with me. I knew she wanted my cock in her mouth!!! She pulls down her top and gets on her knees and then starts sucking like the slut she is. Damn, she's good!!! She takes my entire cock in her throat!!!