Mum was serious and sullen but said that she'd agree to 20 photos. I replied that that would be ok providing one of them was topless. She went quiet f...r a moment, so I reminded her that if she was going to make the train we had to leave soon. At that point I knew that she'd agree but that things between us had changed forever. Mum reluctantly promised that tomorrow I could take my photos. I knew she was too nice to break that promise so I rushed her to the station and put her on the train. . Me and my sister used to share the same bed as my house was small.It was in one of those nights i was sleeping with my sister that night that i woke up at 2.00am. It was my first night that I felt anything in my entire life. I still remember that night as vividly as it happened yesterday., it was just about this feeling of great hunger in my loins and I had no idea what it was. For hours i felt a hard pain in the bottom part of my stomach and the first time i noticed that I had a big erection. A drop of precum perched at the tip of the cock was touched by her. Its viscus nature interested her. She licked it with her tongue tip. She took my cock in her mouth and sucked it to bring further drops into her mouth. my cock was not so big. It was only a 6″ with thin and slender structure.She like its colour and she went on sucking it with all gusto. After about five minutes of vigorous sucking I shot My cum into her mouth. It was not expected by her. She gulped the solid stuff and it came. Then I started opening her blouse hooks. One by one I opened all hooks and her soft boobs were in my hands . The same boobs that gave me my food at young age were in my hands , waiting to be sucked . I started licking a nipple with tounge and I heard my mother moaning. Not the fake moan like pornstars . This was real as if someone has got something that she was craving for ages. These moans made my dick harder and it was throbbing at her pussy now. I stopped kissing her boobs and started.