A few years ago me and the wife started going onto a nudist beach on our regular greek holiday. Towards the end of the beach are some steep rocks with a path in the middle that leads into a pine wood.I was walking over the rocks one day and just inside the entrance to the woods was a very well tanned man in his 50s stroking a lovely stiff cock. He smiled at me and beckoned me over with his finger. I was unsure what to do but it was very hot which always makes me horny when naked and the shade was appealing so I nervously walked over having never had any man on man experience before. As soon as I stepped into the woods he reached down for my already stiff cock and started playing with it while pinching my nipples. I reached for his cock and feeling its stiffness I had a sensation that came over me that I had never felt before and almost naturally I fell to my knees and started kissing and sucking his cock. He was moaning with pleasure and started to face fuck me faster and faster until I felt his body stiffen and this massive load of cum shot into my mouth which initially made me gag but I managed to swallow it and then suck him clean as well. Unaware that his partner had been watching and wanking in the bushes, he stepped forward and gently pushed me by my shoulders to the ground and placed his cock in my mouth - he tensed almost immediately and unloaded in to my mouth. They both pulled me to my feet , gave me a kiss each and said "Danke" in German and walked out of the woods. I was taken aback at the time at what I had just done but I knew that my sub bi life had just started...