I have a plain-looking older brother and a snobby younger sister who just started working. One day, my sister got drunk at a company party and came home! I was making fun of her disheveled appearance, when she flashed her breasts and panties right in front of me. It was awkward... but my cock was hard as a rock! Before I knew it, I had already inserted and creampied her! But the next morning, my sister didn't remember anything about our intimate encounter at all! Does this mean if you get her drunk, you can have sex without her realizing it...?
