I've always had a crush on my Sister! She is my ideal, whenever I think about sex or girls in general I just feel I must compare them with my sister! She doesn't know, of course, I've been afraid to tell her up until now because I don't exactly know what to expect. Will she be mad, flattered, awkward or happy? I've been working up the courage to tell her for a while now and last night I finally did! The result was, well... unexpected! She was all casual about it, like it was no big deal, you know, being sexually attracted to one's Sister, and after a bit of chatting she noticed my emerging hard-on... I never intended that but she wasn't wearing any panties, I could see all the way up her skirt and we were talking about sexual attraction so I sort of happened!... Her reaction astounded me! She proposed she "take care" of it! Just like that, she put her notes aside, came closer and simply pulled my dick out of my pants! As she started rubbing it, I couldn't believe my eyes! My Hot Sister was rubbing my cock while talking about the philosophical concept of Taboo! And when she finished talking she just started sucking it! It was so hot I almost came right then and there , but no, there was more, much more... she sucked it, DeepThroated it like a fucking pro, like a Porn-Star and after a long while she told me to fuck her! Of course I didn't have to be told twice so I got to sticking my throbbing cock into my Hot Blonde Sister making her cum twice... I finished by fucking Her Big Boobies, all the cum forming a little puddle on her chest and dripping down her neck! Afterwards I went to jack off a few times, you can understand why