Eing asked to take your panties down and show your bum to an old man, while he sat behind his big oak table and jacked-off, was only one of lives expe...iences I was exposed to as a young girl, in my first year at boarding school.The master in question, was regarded by all girls as a 'Dirty Simpleton', don't ask me who christened him, but it suited all, especially as he had a steady stream of girls, willing to drop-them for him to wank off to.When I was first introduced to him, he sat me down and. What I did notice thou, was that barista was possibly looking at her too, checking her out, as he positioned orders on a massive tray. Just as he was navigating between the obstacles, carrying a tray full of cups, plates and bottles by my table, a naughty strand of hair covered his eyes just for a second too long. Suddenly out of balance, he dropped everything with a loud gasp. I narrowly saved my notebooks, scooping them from the table milliseconds before coffee and cakes splashed all over. I then slid my hand under it, up to her tits. I cupped them from the sides, watching her facial expressions the whole time. Her eyes were closed, her mouth was open, as she dry humped me.Her hands rubbed my chest. I followed her lead and rubbed her tits the same way she rubbed my chest. I watched her, as my fingers grazed across her nipples, taking care not to pinch them at first. But I had to see for myself. I lightly pinched both of them in unison.Mrs. T pulled her shirt off. She cupped her. I gobbled greedily and gave her plenty of attention probing all around and even humming a few tunes to provide the vibrations. She loved it and she was as wet as a waterfall and it did not take long at all till she gushed. With her composure back I took her skirt off and her shirt and bra off and lined up to shag her. I had my cock at her entrance and waited to enter.Then she pulled me in. Just as I started shagging her we quickly manoeuvred to doggy position and starting riding her like I was.