I don't post here often but thought I would share this.
I was on the London underground the other day and was standing behind a Japanese woman on the platform in her twenties. She had waist length straight hair.
When we got on the tube train I stood holding a rail near the door and she stood with her back to me.
I was able to stroke her hair with my thumb and the back of my hand - What a feeling and she didn't even realise.
I got such a thrill out of doing that. Her hair felt fantastic.