Some years ago (2009 to be precise) I was working in Belgrade. My assistant ( I will call her L) was a married Serbian girl who had long black hair, almost down to her waist, brown eyes and wore glasses - every bit the Librarian type - but she had an extremely sexy body - long legs, firm and good sized breasts - spoke excellent English and had a wicked sense of humour........she wasn't happy at home - her husband preferred to play computer games rather than pay her attention - so it wasn't long before the inevitable happened (that's another story!!) - I was 57 at the time and she was in her early 30's..... after a number of rounds of crazy sex, we realised that we both liked the idea of fucking with other people - we would fuck for ages talking about how I would love to see her fucking other guys - and she had the most wild orgasms thinking about it......then she would have to go home - back to husband..... on occasions (normally on a Saturday morning) she would pressure her husband into fucking her and then she would rush over to my place and crawl into my bed so I could fuck her too....yes it was crazy..... Anyway, we had to go to Croatia on a business trip - but as it was July and fantastic weather, we managed to add some days (telling husband that the conference would last a week and that we had to travel over the weekend...don't judge me!!).... We stayed in a fantastic hotel right on the rocky beach .....but down between the rocks was a nudist beach...... L delighted in stripping naked - and what a body she had......she would dive into the sea watched by many a growing cock - including my own..... One day we were laying behind a rock and I started to stroke her......her nipples were rock hard and as my hand wandered down to her smooth pussy she started to groan, spreading her legs to allow me better access..... I thought that we were alone, but when I looked up I saw a guy standing there playing with his cock.... I whispered to L that we were being watched and it just turned her on even more......my fingers slipped deep inside her pussy and it wasn't long before she shuddered to orgasm.......the guy was still playing with himself, but L now a little flushed wanted a break - and with my own cock rock hard I couldn't wait to get her back to the room for a pre-lunch fuck....... The next day we were back behind the rocks - in a different location, but still on the nudist beach......the guy from the previous day was near to us and kept smiling - obviously waiting for another show.....the morning grew hotter and there was little shade - but the guy opened up a parasol which he invited us to share..... L said 'Cool' and we went and lay down next to the guy - he was 'local' so he and L could understand each other......laying in the shade with a nice breeze L started to stroke my cock.....the guy was watching us.....she then took me into her mouth and as she sucked me the guy touched her leg moving slowly towards her pussy..... he looked at me for approval but there was no need L had already spread her legs so that he could gain access....... as she orgasmed on his fingers, I came into her mouth......so wild..... The poor guy had an enormous erection, which L gently stroked but then teasingly promised that we would be back after lunch to continue......later we went back.....he was of course still there......the sun had disappeared and it was a little cooler so L was wearing a long summer dress - naked underneath it - we were in a nice sheltered place with L between the 2 of us... L and I stared to kiss and I could tell that she was incredibly horny again......the other guy and I pulled L's dress off over her head and I immediately pushed her back onto the beach mat and rammed my cock inside her.....the guy pushed his cock to her lips which she took into her mouth.......he was grabbing her tits as I fucked her and as L came so did I with a shuddering orgasm watching her suck this guy off ....... he pulled out of her mouth and then came over L's tits ...... and then apologetically offered her a towel to wipe away his cum......... we then said our goodbyes and the next day returned to Belgrade........ to even more adventures (but maybe another story another time...)