First, I informed her that, as this was a punishment, she was not allowed to hear my voice. Instead, she would set her instant messenger so that the t...pe was large enough that she could read it. She was to set her camera, begin a conference and invite me and my fellow Dom, Mark. As she performed my instructions, Mark and I would "critique" her performance, humiliating her, and driving home the lesson that she must follow my instructions fully when given an assignment. Although we would be able. I played with cock as I watched her bring herself to an orgasm.She pushed me back so I was laying with my back on the arm rest of the love seat. She climbed on my cock facing me with her big tits on my stomach. I reached up and fondled her huge breast as she rode my cock. Her ass slammed down on my thighs. She moaned, screamed and pulled on my hair as she continued to fuck me faster. She tensed up and came again causing a big puddle on her love seat. My lap was wet from her big orgasm. I rolled. “Oh, c’mon, Riley! We can charge two-hundred a pop, a hundred each for a pair of cousins,” she said ‘cousins’ using air quotes, “making out then sucking their dick together. Easy peazy, I can even do most of the work.”I sigh, and thought about it, then remembered her threats if I didn’t comply. “Fine,” I reluctantly agreed, but secretly, I was thrilled. Money? My sister’s position? This could be interesting.“Yay!” she squeaked, and busily got on her phone and shot off a quick text. Her phone. “I don’t want to get you in trouble if your parents should come home. And there is your brother.”“He is gone for the weekend too. Any other excuses Will?” I asked“No, but I am not coming in,”I shot him a dirty look and then said angrily, “You have to be gay since you do not want to fuck me.”Grabbing the house key out of my hand, Will unlocked the door, motioning for me to go on in. Once inside, Will shut the door, locked it and then shoved me against the door. Pressing his body against mine, he.