She was supposed to come home alone.

My girlfriend and I have been together for almost three years now. Sandy is 5’8’’, 110 pounds, and her measurements are 34B, 24, and 36. She has and incredible body with perky breast and a round ass. She truly is a knockout. We have always had good sex, and she is a master in the art of cock sucking. During our love making sessions I often tell her of the sexual dreams that I have. One in particular was about her and I having a threesome, with a well hung stud of course. Measuring in at a mediocre 6.5’’, I am not small but not big either. She has never complained about it or anything, it has just always been a fantasy of mine to see her get fucked by a big cock. This has always excited her the most and is the most frequently talked about. Since we had never talked about it outside of our lovemaking, I figured it was nothing more than a fantasy. Until one night…
I had been studying all day for my anthropology test at 8:00am tomorrow. Around 9:00pm Sandy called me to see if I was going to go out tonight. I love going out to bars with her, drinking and dancing (she is a phenomenal dancer), but this test was just too important, I had to get a good grade. She asked me if I wanted her to stay in with me and watch TV while I study. I told her to go out and have a good time, and that she could come back to my apartment after the bar closed. She asked me if I was sure, I said yes, she wished me luck studying and hung up the phone.
I had been studying all night when my phone rang once again around 1:00am. It was Sandy telling me that she was going to head over to a friends house down the street and that she would be up in an hour or two. I told her that was fine but I was probably going to go to bed soon so I could get up at 7:00am. She said ok, and that she would just knock and if I didn’t answer she would just stay over at her friend’s house down the street. I said that would be fine, and hung up.
I woke at about 3:00am and heard a rustling at my front door. It wasn’t a knocking, but more of a rubbing against the door. Since I am a light sleeper, I heard this immediately. I figured it was Sandy (she was probably too drunk to knock and was just falling into my door). I got out of bed, covered my bare cock with my pillow, and went to the door. I looked through the blinds…My jaw dropped. The back of Sandy’s blonde hair was pressed up against the glass. On the side of her head was a big black hand. Upon further inspection, I noticed she was topless, and making out heavily with a tall, well-built black guy. I thought to open the door right away and demand to know what was going on, but then I stopped and realized that my cock was rock hard and I was stroking it. I watched on. His other hand was massaging her right breast; Sandy was moaning and panting. Because only the top part of the door is glass, my viewing was limited, so I decided to quickly open the door, and see what kind of reaction I would get. I slung the door open and startled them both. I take back what I said earlier, this time my jaw really dropped. Sandy stumbled to the side; I looked down and saw Sandy’s hand clenched to the biggest dick I had ever seen. It must have been somewhere between 8 and 9 inches long, and as thick as Sandy’s wrist. Sandy just stared at me for a moment, then lunged in and gave me the most passionate kiss ever. With her hand still locked around the black man’s pole, her tongue probed around the inside of my mouth I reached around and squeezed her ass, only to find that his hand was already there. We both massaged separate sides of her ass, and each groped a breast. My pillow fell to the ground, and Sandy began to stroke both of our cocks. As we kissed her mouth would open and let out a moan, which only got my blood churning faster. Our black friend started to kiss the side of her neck, and she turned and kissed him. I continued to rub her body, and watch her stroke this man’s huge cock. I then leaned in and kissed her on her neck and ear. I then realized that we were still standing in my doorway, and needed to get inside. I suggested that we go inside, and they both agreed, Sandy never let go of his enormous muscle. She led him up the stairs as I locked the door. I heard her mumble his name to me in an attempt to introduce us. I don’t think either one of us cared, but I learned his name was Chris. (To be continued)