So when I was 16 was the stereotypical shy and awkward nerd who had barely touch a girl before.. so that's why I remember all the details here, bear with me.
I had to go on a 90 min bus ride to a friend of mine, I was gonna sleep over at his place so I had this huge hockey bag with me that I had between my legs. The seats in this bus were fairly large and you couldn't really look in to the next two seats in front of you, also there weren't a lot of passengers because this a workday at 9 pm or something.
So 30 minutes pass or something and we arrive at the next stop, this woman (probably in her mid thirties) walks on the bus and sits next to me (in Sweden you never sit next to someone else unless there are absolutely no other seats available) and puts her hand on my thigh.. so I'm thinking;
"She probably mistook it for the armchair because it's dark and my legs are spread out because of the big bag" Yes, this was my actual thought process... Anyway, some fifteen minutes pass and she doesn't move her hand, instead she starts rubbing my thigh back and forth for a while, of course I'm just nervous as hell.
Eventually she starts grabbing my inner thigh by my knee, squeezing it, first soft than harder and harder = instant boner. So she gradually moved her hand with these squeezing motions toward my groin.
Some time had now passed and I was getting close to my stop so I was worrying how to get out of the situation.. she just barely started touching my dick when my stop came up and I had to get off, I just stood up quickly, she moved to the seat next to ours and I got off without saying a word.
Told myself that my friend was waiting at the stop and I didn't know the area, I must get off this bus now! Didn't even get a good look at her, obviously didn't say anything.. beta general I guess.
The only thing I kept thinking this entire time was that if I did anything, she would call me out on it and call me a pervert and embarrass me or something.. so 70% of me thought that this woman must be crazy and the other 30% wanted to stick my hand down her pants...