I was running along the beachfront when I saw a familiar shape ahead. I closed and realised it was Jen, someone I knew casually from a running group that I attend sporadically.



We got chatting about life, then we compared relationship status - we'd both broken up somewhat recently. We started flirting whilst still running - just gentle banter, odd hand touching each other. Jen was wearing running shorts and a sports bra - Id not noticed her wearing that before and I was wearing a tri top and tri shorts as I was planning on a swim after.



Jen made a comment that I appeared to have lost weight - apart from in one place .. I asked where and she said between my legs!! I'd got hard looking at Jen. I pointed out that Jen seemed to be making pointed comments and that wasn't the only thing that was pointed (her nipples).



Jen asked me if I ever visited the nearby nudist beach and I said not normally, but suggested we run down there as its a good climb back. I was wondering what was going to happen.



We got down to the beach, found it empty and Jen kissed me. I kissed her back and we decided to drop our shoes and go for a swim. We swam out a few metres, then started kissing and touching - we were very horny. We pulled each other's clothes off and threw them onto the sand.



We carried on kissing and touching in the water: by this time my cock was erect and I slid myself into Jen. We kissed harder and I pushed harder and we both came at the same time.



We swam for a bit more, then got out. As the beach was still empty, we lay on the sand for round 2.