Some years ago I was working in Belgrade. I hit it off with one of the office girls (for the purposes of the story I will call her Elle)), who to look at was the 'Librarian' type......long black hair, brown eyes, glasses and most of the time she was fairly plainly dressed - but under those clothes, she had an incredible body.....large ample breasts, narrow waist and long legs. A typical Balkan beauty....... She was a lot younger than me - I was then 54 and she was 29 and she was engaged to be married. To keep the story short (and to the point!!) we ended up having a wild affair - with some incredible sex. Even after she got married......She would dress in some really sexy stuff when she was with me - and then change into the drab gear for when she went home. Due to work , we traveled a lot.....Rome, Paris, Brussels, London......and it gave us ample opportunities to be together. We talked a lot about sex - and she had some incredible fantasies....like being fucked by loads of guys, tied up and spanked, public sex etc.......one year we ended up in Croatia. Next to the hotel was a nudist beach. The weather was fantastic, very hot and sunny - ideal for nude sunbathing. There were lots of rocks and sheltered spaces where you could relax. One day we were laying on our stomachs tanning our backs - I was slightly lower on the rocks than Elle, and I casually started to stroke her legs, moving a little higher up her calves, inner thighs and then brushing past her smooth pussy....... She loved it, and opened her legs for me to get better access......I moved my fingers slowly over her pussy lips and every now and then I would push my finger ever so slightly inside her......I then glanced to my left and saw an older guy watching us and actively stroking his growing cock.......I told Elle and she was a little embarrassed - and said that she wanted to have a swim.....she walked past the guy and smiled and jumped into the sea..... After her swim, we talked about what had happened and Elle started to feel hotter and hotter - and not just because of the weather......... We didn't have any shade, but our 'new friend' had a largish parasol - and he invited us to go sit with him....Elle lay down on her back under the parasol with her knees up and her legs slightly opened........our friend watched as I stroked her thighs and he parted her legs a little further. Elle did not object.....I caressed her pussy and gently pushed my fingers inside of her......our friend motioned to me and I nodded in approval as his fingers took over from mine....I moved my hands up to Elle's breasts whilst he continued to finger her.......Elle and I kissed and she whispered "Fuck me!!" I moved between her legs - our friend removed his fingers and I pushed my incredibly hard cock deep inside her.......our friend moved up to grab hold of Elle's breasts whilst I fucked her like a maniac...it wasn't long before we both reached orgasm - with me cumming deep inside her......as we gathered ourselves Elle saw that our friend had an enormous erection - so she took hold of him in her hands and I watched as she jerked him off....slowly at first before increasing until he shot all over the place. Being a gent, he thanked Elle and took his towel and wiped Elles hand and leg where he had shot all over her.......Elle and I then left and went back to our room........she said that she was tempted to fuck the guy but decided to just to wank him off...... we fucked like crazy again......and decided to make plans to introduce some other guys into our sex games when we returned to Belgrade.....but that's another story ........