C21 Leather Whip?

I was just about to change my clothes when Ms Yao came in with a pocket in her hand. I had already taken off my jacket, and when I saw someone come in, I quickly covered my upper body with it.

Seeing my reaction, Ms Yao giggled and walked slowly towards me. She was wearing only a small black vest that revealed her slightly fleshy navel, and her short pants accentuated her perky buttocks