On a UK Nudist Beach

Recently here in the UK we were blessed with some lovely warm weather so I decided to go to a nude beach at Theddletorpe in Lincolnshire. As I approached the nude area I started looking in the dunes for somewhere to get naked an enjoy the sun. Many of the dunes were occupied by single men or male couples sunbathing. I decided to get naked then continue looking. I had seen males playing with each other here and stuff but never mixed couples, today would be different. I stumbled on a dune with 2 men and a woman. I guess they were in their mid 50's. The woman was giving a blow job to one of the men only a few feet from where I was walking. I apologised and started to turn away but then was invited to stay and watch if I wanted. Seeing the woman give this guy a blow job got me hard straight away so I started to feel my penis and slowly start to wank. Almost immediatedly the guy receiving oral sex through his head back and released a guttaral groan obiviously cumming and the lady took it all swallowing the lot. This guy then put his shorts back on and said goodbye looking at me saying it was my turn. I stopped feeling my self but still having an erection and the couple told me that they were married and thre husband liked to watch his wife have sex with men. My cock was throbbing and when the woman laid down opening her legs her husband asked me if I wanted to have sex with her. Laying beside her I kissed her massive tits and started to play with her very wet pussy and she took my cock slowly jerking me off. I did not fancy going down on her but she took over and on top of me slowly lowering her pussy on to my cock. She was in control moving up and down slowly. It was like a dream and before long another couple of guys appeared both wanking themselves. It was such a thrill watching them and me being watched shagging another mans wife whilst he was watching as well. I wanted to make this last but could not hold back for long and in less than 5 minutes I was cumming inside her wet cunt. She rode me untill I was drained and got off me. My cock was going flaccid quickly until this woman stood in front of the 2 guys and received a facial stream of cum from the other 2 guys. I was getting hard again. Afterwards the 2 guys left and I was left chatting to the couple. They were from Mablethorpe, 10 minutes away and we chatted for about 30 mins before they decided to get dressed and leave. I stayed and after they left rubbed another one out squeezing a few drops of semen out of my cock. I stayed for another hour before leaving walking around the dunes talking with mainly guys but one other young couple who were sunbathing. Both were fully shaved and his cock was about 6" long soft, bigger than my 5.1/2" hard cock. It was nice being naked with this couple showing them my 2" flaccid cock. I said goodbye got dressed and left. A great day