My older brother Todd began to enter my room when I was fifteen. He'd go down on me knowing I'd begun to masturbate, as he'd once caught me playing with my clit watching porn on the net. He's so good at giving me cunnilingus, I never once refused and at first that's all he wanted to do. He would toss himself off as he licked and tongued my pussy hole and clit, then cum on my tits before going back to his own room.
When I had my seventeenth birthday, Todd and I spent two hours having sex, but the difference was, Todd fucked me and took my cherry. It was something that was always going to happen and I'm now so glad it was my brother who took it. His cock isn't the biggest I've been fucked by, but even so, to this day Todd and I still have sex when he's in town. It's so special between us, I hope we never stop having our "Family time" together.