My first time groped

First.

I was in my early teens, I had been using the tube for years to get to school and get around London.
One Saturday a girlfriend and I got on the district line tube at Wimbledon and went into town. We went to Leicester Square along Oxford street, in and out of shops, trying on dresses in Chelsea girl and other boutiques, we both brought a couple of things and by the time we had finished it was late afternoon and we were at Edgware.
We got on the tube to take us back to Wimbledon, there were plenty of seats but we stood against the opposite door, talking about what we had been doing.
It was quite until we got to West Brompton where the station was packed, Chelsea must have been playing, people crowded into the carriage, my friend and I were separated slightly, we could still see each other.
Chelsea must have won as everyone seemed happy and very loud.
Nothing happened at first, the train stopped but no one appeared to get off, then as we moved off I felt something pressing against my leg, I was not worried, I thought it was accidental, I moved slightly but I noticed that what ever it was was still there.
It soon became obvious that someone was touching my leg.
I tried to move but I couldn’t I looked for my friend but she was looking somewhere else, the hand was moving up and down my thigh above my knee, I thought about pulling the emergency cord, screaming out, I didn’t as I thought people would think I was being silly.
The man was facing my side, I was to scared to look at him, I could feel his breath on my neck.
As his hand moved higher up my thigh I pressed my thighs tightly together, but he pushed his hand between them and moved higher, I almost scream as he touched me between my legs.
We stopped at the next stop I was praying he would get off or I could move, but no, I felt trapped.
As we moved off he started pressing rubbing along my pussy, I almost screamed, but I bit my tongue, and I noticed that I was not pressing my thighs quite so tightly together.
I was wearing a very short mini dress, tights and panties, I felt his fingers moving along my pussy.
Just then the train arrived at Putney and everyone seemed to be getting off, I heard a whisper in my ear “ that was a good girl” and with that he was gone.
I never said anything to my friend,
That night when I was in bed i could not stop thinking about what had happened and how much I had enjoyed it.