This time I heard him unzip before the coins were dropped into the box and saw him turn immediately towards me and thrust a much bigger cock through t...he hole. There was no hesitation on my part. I opened my mouth and this time was amazed at how thick and long his cock was.That one was a real challenge. A workout. He had a big cock and now I know he was simply experienced at prolonging his pleasure. Back then, however, all I knew was that he wasn't cumming and I had to work harder. My hands went. He suddenly pulled my sisters head off of his cock. "Ok Megan, don't forget everyone else. I think we all want to cum in your mouth at the same time. Since you love spunk we will give you plenty to swallow." He then changed places with one of his buddies. The guy who was the last to fuck my sister was getting hard again just by watching her sucking off everyone else. Meanwhile I watched my sister orally satisfying the other three guys. It was so hot watching her sucking on big black. They put some money in the slot and started playing some porn. She took her shirt off and they kissed and touched each other. They weren't too far from the opening so I reached my arm through and touched her back shoulder. She had really soft, smooth skin. I was surprised how soft she was. She then touched my arm and came over to the hole. I still had my pants up and she put her hand through the hole and motioned me with her finger without saying a word. I stood up and obliged her after. .. i opened the wooden door it creaked as it slowly swung open.... i took a peak through to see if it was empty it usually was but not today!I was startled by the mans presence as i didnt expect anyone there it made me gasp a little and jump back a little he hadnt noticed my bottom half yet as id only lent through the door... this left me in am awkward position do i turn aroumd and shut the door leaving the man in the hut orrrrr walk in with slutty confidence and take a seat!I took the latter.