My s****r's Bottom - Sex Stories

My s****r's Bottom

... caressed my cock like a pussy. I could have come right there and then quite easily, covering her bum with my ejaculation, but I wanted to fuck her properly. I could tell she was totally committed to the idea of having my cock in her backside. She was moving against me, encouraging me and flexing her anus round the tip of my cock to help me start to fuck her. With just a little pressure I eased the tip into her tightness. “You feel so big!” “Your fault s*s. You shouldn’t have such a delectable backside. Push out for me, it’ll make it easier.” I felt her open a little and a bit more pressure let my cock ease her apart a little more, opening her anus, preparing her backside for the full length of my impatient cock. She felt tight, but smooth and slippery as I worked my cock gently in and out, just the tip penetrating her. “Push a bit more Matty,” she whispered. “It feels OK.” “You’re sure s*s? I want so much to fuck you, but I don’t want to hurt you. Relax as much as you can….” As I felt her muscles ease their tension I applied more pressure and we both felt that exquisite moment as the tip slipped past her ring and was sucked inside her bottom. “Fuck Janie! That feels so good.” I felt an involuntary spasm round my cock as her anus reacted to my invasion and then relaxed. “Take it out and do it again Matty,” she pleaded. I eased my cock out of her with a little slip and rubbed it between her cheeks again. I was so close to coming I didn’t dare do it for very long. Running my ...

... cock between her lubricated cheeks the tip found her arsehole again and slid more easily inside. Again I slid it out and back in, each time it was easier as she relaxed and became more excited. “Is that OK?” I asked. It was a rhetorical question. Her movements and sounds told me she was ready for me to fully penetrate her virgin bottom. She was tight, but wet, open and ready to be fucked. I hesitated, savouring the anticipation of what we were about to do. Then with exquisite slowness I slid the full length of my cock deep into my s****r’s bottom until her cheeks pressed firmly against me and my balls massaged her cunt. We both sighed with relief and satisfaction. We were there at last. For me, years of lusty dreaming were replaced by the reality of the smooth depth and heat of her backside. For Janie the excitement of having her anus penetrated for the first time, and that time by her randy little b*****r, and finding that she enjoyed it made her relax and become more aroused as any doubts she had faded. We lay there for a few moments, my cock twitching deep in her backside but not really fucking her, just gentle little movements. “It feels so good Matty. I never knew!” “If you only knew how many times I masturbated thinking of being inside your sexy arse! “You’re kinky.” “So are you now. You’re encouraging your b*****r to fuck your backside. How kinky is that?” “Umm, I’m not sure. You’d better do it some more so I can make up my mind!” She started moving her backside against ...