Damn, he was straight; I bent over his desk as I went through the examples in the textbook. David pushed his chair back on its wheels with the same no...chalant ease he did every thing with and laid back. I suddenly noticed his reflection in the window; he was checking my butt out. My tight hipster jeans just covered my buttocks, my tee shirt had ridden up my back and since I never wear underwear he had a clear view of the deep valley between my cheeks. I watched him lick his lips, god it made me. But I haven't seen you with any girl before. So I thought...." "So you believed that stranger and thought that am gay.Thanks sis.Thank you very much" he yelled. "I am sorry dear" I apologized .I got off the bed and walked over to my brother who backed away from me advance.I grabbed his hand and pulled towards me. He turned his face towards me and we exchanged a lingering look. Our lips met gently and in a split second and I forced my tongue to make it's way into his mouth. "Kate, what are you. There was no let up and they allowed the vibrator to fuck her stupid for nearly 20 minutes until it was obvious that she had nothing left and her moans were more of discomfort than pleasure.The cameras were turned off and the vibrator switched off and gently removed from her red and wet vagina. Jenny's ordeal was over.The girls, who had been joined by Sally, David and the other guys gathered around as they slowly and gently released Jenny from her bondage and David picked up her wracked naked. One hand then left my side and went down to guide his cock in circling motions as it rubbed round and round my anus before firmly moving very slightly inside me, only a very small amount before pausing completely still, the pressure was constant but the pleasure was intense, I held my breath and time stood still as he paused before pushing in another slight amount. This time instead of pausing he very very slowly moved back to his shallower position before continuing inwards ever so slowly and.