I was very wary of approaching the field of anal sex with my master. He was very enthusiastic while I was hesitant. He is a very well endowed man and he wanted to do it raw. After two months I finally considered it. I asked him to start slowly and he agreed but noted that he would not use any lubricant. He inserted one finger into my anus and it hurt like hell. I would have jumped and left but we decided to be kinky before and now I was handcuffed to a radiator. After sticking two fingers into me I started pleading with him to stop but he said I would get used to it and I did. Two fingers after a while didn't bother me. I wasn't prepared for his cock though. It felt like I was being split in half and I cried the entire time. Several times later I became used to it. It is like having ordinary sex. At first it hurts but then it becomes quite sensual.