I was working as a temporary secretary and had been assigned a new job in a town near to where I live. I like to dress smartly and so I decided to wear a business suit of a black fitted jacket and black pencil skirt which came just above the knee.
As it was summer, I decided that I wouldn't wear anything underneath my jacket so I could keep cool (and to be honest, showing a little cleavage often helps on your first day). Just for fun, I decided not to wear a bra either so that I could feel my nipples rubbing on the jacket all day. Well, the job is a little dull and I do need some thrills!!
The work was OK (thanks for asking) but I was relieved when it was over. The day had warmed up quite a bit now and as I went back to the train station I started to feel the heat. The train arrived and I got on, found a seat near the back of the train next to a window and without any seats facing and sat down. As I was hot, I undid my jacket without thinking and leaned back in the seat. I put my bag on the seat next to me and as I turned to the bag to dig out my book, I was aware of a lad in his late teens / early twenties staring hard at me with through a gap in the seats in front and his eyes looking somewhere underneath my face.
At first I thought that he was either ogling my legs or staring up my skirt at my knickers. I know that this happens and, to be honest, it is no worse than men staring when you wear a bikini on the beach so I thought "Let him have his thrill". I have a slight exhibitionist streak in me and I think that a lot of women do. After all, that is why bikinis were invented in the first place. It was only as I turned back and went to take my jacket off that I remembered that I was naked underneath. He hadn't been staring anywhere near my skirt at all but I had just given him a full frontal of my upper half.
My mind started racing now. What should I do? Do I cover up quickly and move seats or just pretend not to notice. I stared out of the window to hide my embarrassment while I considered my options. "Well," I thought "he has already seen my tits so I will only make things worse by showing that I am embarrassed." and I changed the focus of my eyes slightly so that I could use the window as a mirror to see his reaction. He was reading the paper!!