This happened two years after I met my girlfriend and after a lot of conversation and playing around the topic. We were both young and quite inexperienced, but we trusted each other and were horny as hell. In the two years we’ve been together we tried some stuff, and we found what each other enjoyed most. She was short and curvy, small tits but a big nice butt. I’m tall and skinny, but fit. At some point in our relationship we started to explore some power games, I enjoyed telling her what to do and she started to like the feeling of giving in, of pleasing and trying new stuff. It even got to a point where she was really commited to her role and she got really horny with the idea of being used, and giving pleasure. I started to go harder too, each time we fucked I tried something new or asked for her to do dirty stuff. At first it was just talking, making her beg, then I started to give commands. She obeyed inmediatly, then I started to get rougher. I liked deepthroating her, and she started to finger herself while I was in her mouth. At some point, I would stop her from cuming until I came in her mouth. Only then was she free to orgasm. That was the kind of play we were trying, and getting used to.