I didn't know if she wanted me to cum, so I distracted myself by playing with her pussy. She began to moan, and I began to feel up her breasts while I fingered her. She tensed suddenly and her body spasm. I felt her pussy tighten and contract around my finger. She gasped and her face contorted, and I realized she was having an orgasm. After she finished, she looked at me contentedly. "Murtaza are you still a virgin?" she asked suddenly. I nodded. "What about you?" She nodded too. "Do you want to.......?" "Do you?" She thought for a moment and then nodded. I got on top of her and clumsily guided my dick to her warm wet hole. I thrust forward, and when I felt resistance I carefully pushed past. She gasped as I took her virginity, and after I was buried all the way inside of her, I laid still on top of her. I could feel her heart beating through my chest. She held me tightly against her while she adjusted to the feeling of a penis inside of her for the first time. I started fucking her, slowly at first and then faster until we had a rhythm going. I watched as her body tensed up once more, and she had another orgasm. I was amazed I was lasting this long, but when I felt her vaginal muscles grip my cock, I knew I wouldn't last much longer. I started to pull out, but she held me inside of her. "Cum in me," she said. "Cum in my pussy. It's fun." I trusted her and resumed humping. Our eyes were locked together as I fucked her pussy even harder, and she could feel my dick throb and twitch inside of her. She moaned in a very husky and sexy voice "Yes, Yes, Deeper, Oh God, its fun, I love you Murtaza, Ooh, Aah, Chodo mujhay(Fuck me), saray armaan nikaal lo dil ke(do whatever you want to)" This gave me a dirty horny feeling and I grunted and released my semen into her, squirting endlessly inside of her belly. When I finally finished, we just stared at each other panting, my dick still inside her. Marriam smiled shyly and looked away and said,” That was much better than fucking my ass and soaking my panties with your cum." I smiled. "Yeah, for me too." "Let's rest for a while, and then we can do it again." She said decisively. We lay there beside each other, catching our breath and stroking each other. And, then began the endless string of joys that even has lasted a decade. I simply love my sister no matter how many dicks she has fucked until now and how many boyfriends she has changed until now but I for her and she for me have and are and will always remain special.