Fantasy

OK, this is kinda early work so don't laugh :) Hope u enjoy!
At school, after swimming, we all have showers and the girls ones are split into cubicles (quite big) in a big long row. You can hear all the other girls getting changed and talking and showering along the row and it always gets me hot thinking about them. my friend Sarah always has the cubicle next to me and once I brought along this lil mirror and put it just under the divider on the floor so i caught a glimpse of her in the nude ;) I know that's really bad but I couldn't resist Anyways, I often masterbate there, just finger myself gently. My fantasy goes that sarah came in one time to borrow my shampoo. It's always really steamy and I was there fingering myself and didnt notice her. Then I look up to see her standing there watching me as I moan softly. I panic instantly but she walks over to me slowly, looking at my pussy. "How do you do that?" she asked, refering to making myself moan. "don't you know I ask?". She asks me to show her and she drops to her knees and i show her where I'm touching. Then I come behind her and slip my hands around her and touch her special spot gently and she moans gently. I continue to rub it gently, round and round, teasing the outside with my other finger. She cums really quick ;) Then she turns to me and says "What happened there?" I whisper "you came hunny". "Can I do that for you?" she asks. I nod my head eagarly and she has a go at me. I always cum here so I've never gone ne further