I stood there with my dick in my hand for a few minutes. My sister said unties me so I can wash my face. I said s*s it’s has not been the full two h...urs and we can’t stop now." She said there is nothing left unties me. I said "listen we have to make it good and long or else he’s not going to pay us. I said listen just let me do this and trust me.I turned around and then headed towards my clothes I got out my briefs and put them on the bed. My sister was still laying face down with her hands. Watching those sexy lips sucking on the cig and then blowing gently out... I felt my cock getting hard again!I quickly opened the door and there sat in the corner on an old chair was Emma. The freshly put out cig was on the floor next to a pile of magazines that she must had brought with her to pass the time."What are you doing in here?" I said to her trying to act surprised. I could see she was shocked that I had caught her there by the way her face flushed red and the fact that she didn’t. "They won't be cheap", he replied as they came to the first of many they would explore. She picked up and examined a number of sheer blouses, virtually see through. "These are nice", she said. "I love the colours. I wonder if I can try them on?" she asked as she went to the counter". The store girl was very helpful and showed her where she could try them on. The store was virtually empty and the changing room was big enough for her to invite him in. An invitation that he didn't object too;. I drove into the park and ride lot flashing my light (that was the signal) he flashed back i pulled next to him rolled down the window for a chat. Everything ok all he wanted was a white Gurl to suck him off so I got in his car and away we went. after about 2-3 minutes of talking I reached over and rubbed his cock he smiled as i unzipped him. WAM that black cock sprung out like a snake. Stoking it bending down kissing the fat black head i was in heaven then started sucking bobbing my head up.