Everyone was excited and none of them were on their best behavior. This was due in part to the fact that the parent chaperone had become ill and cance...led at the last moment. The teacher, Miss Briggs, was also without a T.A. for the day and so had to manage 32 teenage boys and girls nearly on her own.There was a perfect storm of chaos and humiliation brewing for timid Tim, but as the children piled into the bus that morning, everything seemed normal. It was the calm before the storm.For years. “You should be proud of yourself slut, you did very well and I am most pleased.” “Thank you, Sir. Please Sir…fuck me.” “As you wish, my dear.” With that I lean you forward just a little and keeping a firm grip on your hair begin slamming my cock into you. “OhmygodSir!…may…I…cum…please?...” Your words are broken by each slam of my hips into yours driving your hips forward as I pull you back by your hair to keep you where I want you. “Yes…slut…you…may.” “Ohhhfuuuuuccckkk!!!” you scream as. I ransacked my draws and found a small pair of shorts. I could just about wiggle them over my hips. I looked at myself in the full-length mirror. Not bad, I like to look at myself, I liked the way my naked boobs stood out proudly, although not big, they were a very nice handful; now for at top. I tried on a T-shirt, no good, how about a button up shirt, perhaps just tied up under my bust. No didn't look right. I found an old denim waistcoat, it fitted ok except I couldn't do it up, all of it's. I was not sure about what she wanted from me, whether she wanted me to just pounce on her, tear her clothes and fuck her till she faints or what.. I was damn sure that this cannot be the normal dressing for anybody, today I deliberately missed my underwear and was wearing a pair of shorts that was not very loose so that if I get hard she gets full view of it, same happened, due to all the skin show and transparency I was getting hard, I was standing next to her and alternately looking at her.