The submissive girl in dance class [m/f]

It my last semester of college, and I was blowing off real work by taking a dance class. On the first day of class, I mostly hung out with a few people that I already knew, and they introduced me to their friend, "Annie". Annie was a very thin, attractive Asian girl – about 5'2" and maybe 110 pounds at most. She looks a bit like Alina Li, but thinner and with smaller eyes. Her voice is also very light and innocent. (I am a 6'1" thin white dude with a beard, for reference – people tell me I look hipstery). She seemed nervous whenever she danced with me, which was pretty cute.

A couple of weeks into the class, Annie drunkenly messaged me. Our conversation quickly turned dirty, and she revealed that she really liked kinky sex and the thrill of getting caught. We started hooking up, and the sex was great, but this story is about one specific day in dance class.

Annie told me before class that she had a surprise for me, and when she walked in she was wearing her usual attire for dance class: running shoes, a grey gym t-shirt, and black running shorts. She sat down next to me and handed me a small, black object – a remote control. "I'm wearing a vibrator."