i had an experience kind of like that at the brazilian jiu jitsu school i trained at. a very large muscular woman started training there and i noticed her right away. it came out pretty quickly that she was a domme. she was pretty open about it. i never did talk to her about it. at the time, i hadn't actually done anything kinky in my life. it was kind of funny, b/c when i rolled with her in training, she would always start the roll by saying something like you know i'm just a girl so take it easy on me and laugh. i thought it was pretty funny b/c she was shredded and huge.