"Then why did you make me...?" she asked. "If the other girls don't finish by swallowing, then why did I have to?" Because my sister is the best at ev...rything she does." Marcus told her. "And if I'm training my sister to be a slut, she's going to be the best slut ever!" I'm not a slut, Marcus!" she said, horrified. "I'm not!!" Really?" he smiled. "What else do you call a girl on her knees, topless, with her brother's come still smeared all over her face?"Dawning realization broke over her face. .. "Sumi, are you always slow in all... ?" and giggled and patted on my thighs... and started running her hands slowly up and down my thighs over my nightsuit.Already I was an aroused state, and with some expectation, and when Madhu made an advancement, that was the last straw and I gave in... I gulped the beer and emptied it immediately; placed it on the table, and turned to Madhu and replied in a grin, "May be, slow and steady wins the race, don't you know?"Madhu gasped at my comment, and. “You already brought it up for me, you don't have to.” I replied. I felt really bad making her carry my stuff.“At least let me help you carry it. The alternative is going to be you losing your towel and showing me your cock again.” I agreed and we each grabbed an end of it. As we walked I was a bit bothered by what she said.“What did you mean by showing my cock again? I wasn't facing you the first time.” I asked curiously. We got to the bedroom when I finished asking. We dropped the bag off and. I am sorry to have disturbed you. I saw that Mom and Dad were a little excited for the weekend and obviously I am looking forward to it and I just thought you might want be be part of it too."Maddy huffed. "I'm sorry, I was just beginning to doze off I guess. Oh here, let me help you with that."Maddy replaced her brother's hand with her's and continued the steady stroking while Michael began to unbutton his sister's shirt.The car raced down the lonely two lane road. The traffic was very light,.