A chance encounter, but I do not know how I feel about my reaction to it.
I was helping to organise a dance summer school. There were a wide variety of girls there and it was residential. We had hired a local school and had the use of their halls and were using the classrooms as dormitories and the kitchen for catering.
During the afternoon session, I did not have a class to teach, but I noticed that one of the girls was missing. I went to have a look in the classrooms for her, but couldnt find her. As I walked back through the school, I passed a room that we were not using. It was the school library and was very small, little bigger than an average sized bedroom. In it were several beanbags where the children could sit and read. On one of these beanbags, I caught sight of (let's call her Anna). She had her panties around her ankles and her leotard was scrunched up on the floor. That meant she was all but naked. Her pert little breasts looked almost painfully hard as did her nipples. I saw her hand between her legs and also saw that she had two fingers deep inside herself. As I watched, she had the most beautiful orgasm.
Now, I do not consider myself in any way bisexual, but this really turned me on. Yet here I was desperate to masturbate with this image in my mind. I had the presence of mind to get out of the way before she came out which she did a few moments later, dressed for her class. I went into the library and could easilly see her wetness on the beanbag where she had orgasmed. I could not help myself, but I knelt down and smelled her. At the same time, I shoved my hand between my legs and came in my panties while I smelled this wonderful, fresh and obviously horny young pussy.
Now I am really confused because I find myself really interested in having an experience with another girl for real, but I'm shocked and very uncomfortable with the fact that Anna turned me on so much. and is. This is not 'normal'.
Even so, I was then and am now extreemly turned on by it. I need to cum right now.