“I know I can feel it” she said in dreamily wispy voice.
“We have to get back to the room now and get out of the costume,” she said. This time there was no laugh just a small quiver in her voice.
I only thought I was turned on before. Now I could feel her bare skin and the sweat from our bodies running between the crack of her ass. The whole inside of the costume smelled of sweat and there was no denying there was the smell of wet pussy.
The smell of her sex was more intoxicating than anything I could have ever imagined. I was getting more and more turned on. I knew in my brain that we had to get out of this soon, but all thought about consequences had totally left me. I was completely and totally lost in the moment.
My heart was racing and I could tell she was also starting to pant a little. Her breathing was short and fast and with each step she would let a little moan out. Getting back to her room was a nearly impossible task. We were way outside on the deck and it took 10 minutes for us to get that far. I knew it was going to be a slow walk back inside and to her room.
Slowly we walked back inside her house. Each step seemed to take and eternity. With each forward step my rock hard cock was slipping up and down her and I swear she was pushing her ass against me with each step. The temperature in the costume was rising and I was not sure it was all from the heat.
I whispered, “If we don’t get back soon I am going to lose it… We have to try to go faster”.
We picked up the pace and started taking bigger steps. This was a big mistake. With her first big step forward we got out of sync and she fell over toward the floor face first. I tried to lean back to keep us upright. Her falling forward and me falling back was just enough gap that my cock slipped from between her ass cheeks. As she caught herself from falling and pulled up, I felt a warm wetness engulf my hard throbbing cock.
She let out a moan and her whole body stiffened as a small quake rippled through her body. My mind was in a fog. I tried to pull back but there was no room. Her pussy squeezed my cock like a vice and her breathing quickened. Neither of us moved or said anything for several seconds. Soon her breathing slowed down but the warm wetness was still engulfing my hard cock.
“We have to get back to the room nowwwwwww,” she whispered in a quiver and a pant.
We were still 30 or 40 feet from her room. With each step my cock pushed deep into her and I felt a flood of juice drip over my hard cock. We made it 5 more feet and she stopped.
I was totally lost in the feeling of her wet pussy. I no longer cared that she was my sister. My brain was screaming how wrong this was but by adolescent fantasies of my sister overpowered any sane thought. The times I had wondered what it would be like to have sex while listening to her fuck her boyfriends ran through my mind like a freight train. An at this point there was no stopping that train. My whole self was lost; all I wanted to do was cum in my hot sister’s dripping wet pussy. Her body stiffened and a deep moan came from her lips as I felt that shutter and quake rip through her body. Her body quivered and I felt her pussy clinch my cock. I knew for sure this time she was having an orgasm.
Her shaking was harder and stronger than the first time. Her pussy was like a vice; it squeezed and milked my cock. She bent over further as her orgasm rocked her body and I could not stop myself from trying to push my hips forward and back, trying to sink my cock all the way in her. I knew somewhere in my brain that this was wrong but no one was listening to that voice.
I kept trying to push as deep her as possible into her hot wet pussy. Again she held on to the wall and let another orgasm pass. This time, the longer she held the wall the more I rocked my hips to push in and out of her even though we were not walking. Her breathing was getting faster but somehow she got the strength to try to walk forward again. I walked with her but no longer cared about anything. Now with each step I would try to pound her as much as possible, fucking her with all the force I could muster in such a small space.
We made it five more steps and her breathing was so fast and strong I thought she would pass out. I don’t know if she meant to or not but she started pushing her ass back against me as she stepped forward. It was almost like she was trying to get me deeper in her pussy. There was no thinking, we were just lost in sexual delight, only the intense pleasure mattered.
We made it to the door of her room and her pussy clamped around my cock as she had another orgasm. This time I had to hold on to the wall to keep from falling. Her moans became louder, almost a muffled scream. Her pussy juice flooded over my throbbing cock. If it had not been for the music and the noise anyone close by would have heard her.
As her pussy gripped my cock I could not hold out any more and a flood of cum shot from my cock deep inside of her. My cock started pulsing as load after load shot into her. The second she felt me cum in her she set off in the biggest orgasm yet. Her breathing was so fast it sounded like she had just ran a marathon. Her whole body was shaking, we both just stood there propped against the door to her room. It took over a minute for both of us to catch our breath and be able to move. Neither of us could talk, it was all we could do not to fall over.