Two weekends ago my wife's best friend Linda came over to stay at our place for the weekend. As always she is excited to see us both as our friendship has spanned 21 years, but in very different ways (There is a heap of sexual tension between Linda and I). As always when Linda is here she joins me on an early morning walk to the beach which is 15 or so minutes away. As the weather is much better this time we for a longer walk. During this time I was eager to make a move on despite Linda and I being married to other people. So I did. After we got out of view where I live I made sure my hand touched hers as we were walking. As ours hands touched Linda looked at me and I apologised as if it was accidental. We then continued walking and then I blurted out to Linda that I wanted to fuck her. Her reaction was of no surprise. She'd told me all along that she knew that I wanted to be inside of her at some point again (We'd fucked previously two years prior). So we walked (Linda told me she wasn't wearing and knickers underneath her walking shorts on the way) to the public toilets at the Largs Bay jetty and went into a cubicle in the men's part of the block. I sat down on the toilet seat and Linda pulled down her running shorts showing her trimmed red pubes that were soaking wet knowing that we were going to continue our sordid affair again. She lowered herself onto me and I slid straight in. I then lifted her up and moved to the wall of the cubicle where I thrusted like a demon making sure I came inside of her in the short amount of time we had together. The sex that we had was hot as ever and I filled her fertile snatch (She is not on the pill anymore) with my seed, yet we knew that we had to get back before any suspicion was raised. As we walked back home we held hands for most of the journey knowing we had some great sex during her visit.