I really wanted to go shopping with them but I was told to stay home and help with work around the house. Off they went to the mall as my father grabb...d a cup of coffee and headed back out to the garage to work on his car. I was still aroused and headed back to my room to stroke my cock when I passed by my sister’s bedrooms. There was girl stuff s**ttered everywhere and on top of the pile of dirty clothes a cute pair of sheer panties caught my eye. I looked out the window to make sure that they. The next day, mid-morning, I was working at my computer (ok, I was surfing the internet, reading stories on alt.sex.stories, not actually working), when I saw her name go active in the yahoo messenger. Long ago, I had created a username for myself to match my authorial pseudonym, and so, thinking quickly, I now logged in under it. Somewhat trepidatiously, I sent her a message.She was more receptive than I'd hoped -- she was quite friendly and apologetic about "what had happened." I didn't. All at once she understood. She was on her knees with her legs spread wide bent forward, with her hair pulled back and tied to her wrist, which were tied to something above her. She couldnt move at all. She went into a kind of panic and tried to scream, forgetting the guy that was balls deep in her throat. So all she managed was what sounded like a moan, which was meant by cheers and shouts of slut. She then tried to pull away again, but couldnt move at all. She wasnt having this so with all. "I...I'm sorry...I" she struggled for words, the aftermath of her most intense orgasm ever causing her to lose touch with reality momentarily, "Forgot what to say next in the presentation." Ms. Quinn, that is no way for a student to speak", Mr. Nickerson scolded, "Especially one with as much prowess as you. I will give you a warning for now, as we have never had problems in the past, but let this be a lesson to you. I shouldn't have to pound the concept of proper language into you." I laughed.