I hit puberty very late. So with 17 i didn't look much like a man. I didn't have much of a beard and the little was hidden good under my make up. I also didn't have much body hair and the little i had was shaved good. I still had a very small cock and i was taked away in my panties so there was no perfidious bump in my tight dress. I also had still the clear voice of a young boy or a girl. So when we arrived at my apartement Geroge still thought i was a girl, a girl with tiny titts but still a girl. And i didn't want to prove him wrong before he wasn't honry as hell. It was a small one room apartement, so it took only a few steps from the door to my bed. We lay down, kissed and fondelt for a while, i was glad that he liked the taste of his own cum in my mouht and on my face. While we kissed wild and passionate i managed to pull his clothes of without undressing myself. So after a while i laid on his naked body and i still had my dress, my panties and my high heels on. His cock was so big and so hard, i jerked him and sucked him, couldn't get enough of that big black cock. I still didn't want him to know about my little secret but i wanted his cock in my boy pussy, so i pulled my panties aside and slowly said down on his big fat black cock. I rubed it on my asshole and then pushed my ass harder on it. It was way to big for my tight boy cunt and i only had used a little saliva to lubricate my ass. When it went in i screamed in pain but i didn't stop, i was so horny i wanted it deep in me. Slowly i started to ride that big fat black cock, pushed it deeper and deeper in my ass. Geroge moaned in pleasure and told me to ride his cock, told me to take it all. After a few minutes the pain changed more and more in to pleasure, i got faster, i impaled myself more and more on his big long cock. I still couldn't get it all in when he cum in my boy cunt and seconds later i also shot my cum in my panties. I laid down on him, still his softening cock in my ass and kissed him, i asked him if he liked it to fuck my tight ass and he told me he loved the feeling of his fat cock in my tight fuckhole and that he wanted to fuck me again. I guessed that would be the right moment to show him my little secret. I stood up, his cock went out of my ass and a big load of cum run down my legs. I pulled down my panties and lifted my dress so he could see my little white dick. It still was hard but even hard not half as big as his soft, about 4''. First there was nothing then surprise in his eyes, but then there was also curiosity. So you aren't a girl but a little horny sissy slut he said, that's a surprise, but you are a good fuck and i think i will use your tight boy cunt a few times more tonight. I was so delighted that he didn't run away. He stood up and took me in his arms, lifted me from the floor and kissed me, I wraped my legs around him and rub my little hard cock on his belly. Then i felt that the tip of his cock was pushing against my asshole, my little surprise had made him hard again. He laid me on my bed and pulled my dress of, he pulled my legs apart and this time i had now chance to controll the speed, he pushed hard in my ass and i scream in pain but he didn't stop and i didn't want him to stop. He pounded my boy cunt so hard, deeper and deeper his cock went in, and so i hadn't managed to take it all in when i had rode his cock, he fucked so hard that he went in all the way and i could feel his balls smacking on my ass. He called me a slut and a sissy and a horny faggot and it made me so horny, my little cock was leaking cum. Because he already had cum two times so it took him much longer this time and he enjoyed ever minute of it fucking my tight boy cunt. My ass hurt like hell but i didn't want him to stop. Just before his orgasm he pulled out , took my head in his strong hands and forced his big cock in my mouth. He hadn't been very gentle the first time when he had fucked my mouth, but this time he was brute, he forced his big dick deep in my throat without caring about me gaging. He pushed hard two or three times and had his fat cock nearly all in my throat when he shot his next load in me. Then he pulled out and we kissed again , both naked on my bed, kissing and touching for a long time. I was in heaven feeling his strong body and i knew he would fuck me many times again.