Tight fetish

I used to have guitar lessons and in my class there was myself and a girl, Mandy. One day I attended the lesson as usual and Mandy was sat across from we on my right. Well I was never a great guitar player and I had just finished murdering the piece and it was Mandy turn. She put the guitar in her lap and I noticed i could see straight up her skirt. WoW she was wearing sky blue knickers and white tights. Being a sixteen year old lad I got a hard on instantly. I thought all my birthdays had arrived at once. I tried not to make it obvious that I was staring straight at her gusstet. Well all to soon it was my turn again and my mind was really somewhere else. Soon it was Mandy's turn to play again, I waited with baited breath for her legs to open..... Oh yes ther it was again, only this time there seemed to be a dark line in her knickers. Yep blokes are kinda slow sometimes. Weel my turn came around and Mandy excused herself to go to the loo. She came back and again I was looking forward to seeing her knickers again. Up went the guitar and her legs slid open........OMG she had pulled her knickers to one side and I was looking straight at her pussy lips. I nearly came in my pants! The rest of the lesson flew past. As we lft the room she smiled and said 'meet me after school at behind the laundry'.
The story continues if you like. ALf xxxx