It was a warm night in August and Denise had decided that we were going to have a barbecue in the back garden as all the kids and their boyfriends were out for the night. One of Denise's friends from work, Mark, was coming over.
About 7 ish, Denise went up to get changed and came down in one of her flowing summer dresses. Anyway, I went outside and fired up the barbecue and Denise prepared the food in the kitchen. She brought it outside and we sat at the top of the garden, I was drinking a beer and Denise had popped the cork on a bottle of champagne... Her mission was to drink it.
We had eaten and Denise had drunk at least half of the champagne and was starting to get quite merry... We were joined by Mark, about 35, tall and slim and we sat talking for a bit, getting more and more drunk.
We were listening to music and Denise was dancing on the decking, providing me with the occasional flash of her thighs as she spun and twirled to the music. She drank more of the champagne and her dancing got a bit more flirty with a bit more thigh on show.
About 10 minutes later, after all the champagne had gone, Mark said that he was going to go to the off licence to get some more drinks. We had plenty of beer left but he had noticed that Denise's glass was empty. Denise then pulled the hem of her dress up and tied the bottom of it so that it was really short and showing plenty of thigh and when she raised her arms I was sure I caught a glimpse of her arse cheeks... After a few minutes we heard a knock at the front door which we had locked. I went down the garden and into the house. As I walked through the kitchen I could just make out Denise at the top of the garden still dancing and swaying to the music. I opened the front door and standing there was Mark with more drink. I noticed that he had a bottle of prosecco with him. I asked him in and told him that we were still at the top of the garden. I went on ahead and shouted to Denise to tell her so that she could adjust her dress.
She didn't, she just shouted back that he must dance with her. As we walked up the garden she was still dancing and her dress was as short as it was when I left her. Mark looked a bit awkward but kept it to himself. He opened the bottle he was holding and asked if anyone wanted a drink. I was OK but Denise said she would. She walked over to him and took the bottle and swigged from it and then started laughing...
I noticed that Mark had kept trying to get sneaky peeks at Denise as she was dancing. I don't think she had noticed but after a bit more of the prosecco she started to get daring again and her dancing was getting a bit more provocative. At this point the prosecco had obviously kicked in as she spilt some down her dress. She said that she was going to change it. I dared her to put something light on and she replied, wait and see!!
After a few minutes she came down in a blue strapless dress that she bought for our holidays which she pulls on over a swimming costume. I couldn't believe what I was seeing as she had taken her bra off and her breasts looked amazing in the thin material. She had her back to me and then lifted the back up and flashed at me showing me that she had taken her knickers off as well!! Thankfully Mark was looking the other way but I did start to feel a stirring in my lap...
The music was still playing and Denise got back to her dancing, grabbing hold of the prosecco and drinking straight out of the bottle. This time she was swaying her hips and grinding to the music. As she raised her arms her ass came into view and she swayed left and right. Mark could not believe his eyes as the next moment she grabbed his arm and dragged him onto the decking... She danced in front of him, swaying her hips and then she put her arms round his neck. Her dress rode up and there was her gorgeous ass, barely covered by her dress and if it was like that at the back it would be like that at the front, millimetres from Marks crotch!!