It was my first time studying in the USA and I was really struggling with this assignment so I invited my step-brother over to help me. He's a professor so it made sense to invite him over. We were discussing the issues I had with this one theme but I really couldn't stop thinking about this unspoken fact about black American men. I wanted to know if it really was true that they have massive cocks so I just bit the bullet and asked. He didn't seem shocked by the question (he must get asked a lot), so I went a bit further and asked him to show me. Of course, when he whipped it out, my heart started pounding instantly and I could feel my panties getting wet. Was I actually dripping pussy juice at the thought of my step-brother revealing his BBC to me? isn't that a bit wrong? I think he knew how I was feeling so he put my mind at ease by letting me have a look at it. I couldn't control my urges at all though and we ended up fucking until he came on my ass. I hope step-mom and step-dad doesn't find out!