Thanks to Dark_Ange26 for editing this story.
I felt pretty bad for you. Here it is your birthday and I am the only one of your friends who could make it out to celebrate with you. I know it is not the type of evening you had in mind, sitting around in a local bar doing shots with just me. But I am glad to share your company. It is almost last call and we are both pretty buzzed. Thinking it is not such a good idea for either of us to drive home, we decide to call my roommate to see if he can give us a lift. He says he will be by in about ten minutes. We order one last shot and then head outside to wait for him. Soon enough we are in his car and on the way to drop you off.
When we get to your place I get out of the car to give you a hug and mention again that I am sorry nobody else made it out to celebrate with you. Just then my roommate speaks up and suggests that he has something that might cheer you up a little. He pulls out a nice fat blunt. I am glad to see your eyes light up a little as you suggest that we head upstairs and enjoy it with a little music and relaxation rather than smoking it in the car.
When we get into your place we all grab a comfortable seat on the couch. He hands you the blunt to start it up. You seem to be at a loss for a lighter and turn to me. I reach in my pocket and pull one out, but before I give it to you I come up with an idea. "I don't think it would be proper to light that up before getting a birthday spanking." Rolling your eyes at me, you turn and point your sexy little ass toward me as if to say fine, go ahead, just give me the lighter. Oh no, a proper birthday spanking means you have to be over my knees. You decide to rise to my challenge, draping yourself over my knee. Your ass is pointing toward my roommate and you wonder if he can catch a glimpse of your thong, as your skirt suddenly seems awfully short. You feel my hand gently rubbing against your ass and are surprised at how much you are responding to my touch.
Suddenly you feel cool air on your ass as I lift your skirt up onto your back and expose the smooth skin of your butt. You are about to get up and yell at me, but before you can react you feel my hand land on your left cheek with a resounding smack. You feel a little sting and are again amazed at how this is starting to turn you on. Is it the spanking or the fact that someone, who is almost a complete stranger, is watching? Before you can clear your thoughts, my hand lands on your right cheek. Again your mind begins to race, you know you should not be getting turned on, but you cannot help it.
Obviously, I am enjoying this as well. You can feel my erection pressing against your side as you lay across my lap. A few more slaps and you can feel the dampness gathering in your pussy and beginning to leak out onto the thin material of your thong. You realize that my roommate must be able to see how turned on you are getting. Suddenly you find yourself thinking about how turned on he might be getting. You wonder about his cock, is it long and thin or short and thick? You are realizing are enjoying this a lot more then you thought you would.
Another smack and your thoughts jump back to the present. When my hand lands this time it lingers on your right cheek, we can both feel the heat being generated by your pink skin. My hand slowly works its way around your ass and then slides down against your thong. Tracing my fingers gently along your thin material between your pussy and my hand. I can feel your pussy soaking through the material. I gently rub your clit though the cloth and a long moan sneaks from your mouth. You feel the heat of the spanking on your ass, the flush of embarrassment in your face from being so dirty in front of a stranger and the heat of excitement in your pelvis.
My hands reach up and grab the back of your thong. I tug it gently forward making it pull tight against you, showing the very outline of your lips to my roommate, then I begin to peel them away, sliding them down your thighs. Your pussy is soaking wet and your lips are swollen and the entire world can see it. You strangely find you don't give a damn.