It took 15 minutes to reach the secluded cove behind the outcrop of rocks that was part of the beach reserved for nude bathing.My wife Pauline and I picked a spot beside the rocks and set out our beach mats and towels. I was going to have to make a second trip to fetch the picnic basket. To our right, about 10 yards away, were an empty sun-lounger and some towels. It was a good spot as the rest of the beach was quite crowded. Pauline took off her beach coat and stood naked in the warm sun. Just then the owner of the sun-lounger appeared from the direction of the sea. He was a tall, good-looking, well built man aged about 50, with a fine head of salt and pepper hair and he was hung like a donkey. He began to dry himself, his huge cock swinging from side to side as he rubbed himself down. Pauline's eyes widened. "Oh my," she whispered, "just look at the size of him!" The stranger finished drying himself and seemed to notice us for the first time. He smiled, fixing his eyes on my wife's naked body and waved his hand in greeting. Pauline waved back and provocatively struck a pose, hands on her hips, head tilted back and her back slightly arched so that her firm tits stood out proudly. The stranger, grinning broadly, went to his sun-lounger and laid down. He put on a pair of mirrored sun glasses but I knew his eyes were still on Pauline as his cock stiffened into an enormous erection. It was a good 8 or 9 inches long and as thick as a cucumber. "I'm going back for the food." I said, "Behave yourself ... you seem to have made quite an impression on your pal over there!" "So I see but don't worry - I'll be fine!" she laughed. It took me just over half an hour to make the round trip and as I neared the outcrop I heard noises coming from the other side. I climbed the rocks and peered carefully down. There, on a beach mat, the stranger was demonstrating his appreciation of Pauline's sexy young body by fucking her hard, pushing his stiff cock into her tight little pussy with long, powerful strokes. At each thrust Pauline gasped and squealed as she thrust back with her hips. He raised himself up on his arms and began to fuck her faster, pumping that massive cock into her cunt like a piston. She drew up her knees and wrapped her legs around his back. Her tits bounced and jiggled with the force of his thrusts, her nipples standing out like organ stops. "Ooooohhh, yes! ... Ooooohhh! ... OOOOOOOHHHHH!" she screamed as she climaxed in a spine-shattering orgasm. He rammed into her fiercely and then, with a terrific grunt of satisfaction, he shot his load and jets of his hot spunk shot deep into my wife's cunt. He collapsed on top of her and they lay there breathing heavily, Pauline moaning softly. I waited to see what would happen. He glanced at his watch, murmured a few words, gave her a lingering kiss and pulled his wet cock out of her cunt. He stood up, looked around carefully and then headed back to the sea. I waited till he had gone and then went round the rocks to where she was laying. "Everything ok?" I asked. "Mmmmmm .... couldn't be better!" she sighed. I stripped off and laid down beside her and soon the stranger emerged from the sea and went back to his sun-lounger. He dried himself off and settled back, his gigantic cock, no longer stiff, resting across his thigh. He had a triumphant smirk on his face.