[MF] When I was 18, my milf karate sensei took my virginity on the dojo floor as a reward for passing my black belt test

I started taking karate in my teen years to get in shape and build confidence. I was lucky enough to have an extremely attractive and skilled female sensei at my local dojo. She had dark brown hair, green eyes, and despite being around 50, she had the body of a 25 year old. Her main job was as a CPA so she was also kinda loaded and she was recently divorced. Oh and did I mention, she was really good at karate. She was a 6 dan black belt who had trained in Japan during her 20s and she was not just this badass, but a great teacher as well.