I went in to work today, just to get a few things done. I was sitting at the computer at the end of the big room. There was just my female work colleague and Co-worker boy in the room. My colleague and friend was busy working and Co-worker came over as he often does to look over my shoulder at what I'm doing on the computer. He always comes super close, he bends down to get his head right up next to mine and stares at what I'm doing.
Today, though, he did everything as usual... except he kissed me. He kissed that soft space between the neck and the shoulder, my hair had parted right there, I was wearing a wide boatneck sweater, showing off a bit of shoulder and I guess he just took advantage. I was startled. I certainly wasn't expecting it. In fact I kept very still as I usually do when he comes to stand that close to me. But when he kissed me, my head whipped round and my cheek bonked him in the head. He got slightly flustered, said "you were so concentrated I guess you didn't..." in what I'd call his 'joking around tone', and the sentence trailed off.
It gave me goosebumps. I'm not sure what to think about that... I can't really justify it as friendly flirting anymore, can I? I think it crosses the border.