Suggest going for a swim

I suggested we all go for a morning swim and everyone agreed. We all walked down to the water and jumped in. The cool water felt so refreshing against my hot skin. I swam around with the girls, enjoying their company and the gorgeous view of the beach.

As we swam, I noticed that Sarah didn't join us. She was still lying on the beach, applying oil to her nude body. I watched her as she rubbed the oil onto her tits, her nipples getting harder and harder. I watched her for a while, lost in thought until my attention was drawn to the diver, who was approaching her. His name as I learned later, was Bill. He was a tall and muscular man, with brown hair, and piercing blue eyes. He had a chiseled jawline and a rugged appearance that made him look like he had spent a lot of time outdoors. Sarah seemed impressed by his appearance and demeanor, smiling at him as he approached her and introduced himself. "Hey there, name’s Bill. Mind if I borrow some of that oil?" Bill asked, pointing at the bottle next to Sarah. She looked up at him, sizing him up with a wicked grin. "Sure, take as much as you want. Sarah, nice to meet you!" As Bill started rubbing oil on himself, Sarah sat up, stretching her arms and arching her back, giving him a clear view of her perky breasts. I felt a pang of jealousy and curiosity as I watched them interact, wondering if Sarah was really interested in him or if she was just trying to make me jealous.

Bill asked her to apply the oil on his back. Sarah said she would, but he had to do the same to her. I could see the look in her eyes, she was clearly interested in him. Sarah's creamy, pale skin against Bill's tanned, muscular back was a sight to behold. And when she started applying the oil, I could feel my cock twitching in my trunks. He lay down on his stomach on her towel and Sarah straddled his back, squirting a generous amount of oil onto her hands. As she started to rub the oil into his skin, I could see her tits bouncing with each movement. Bill's eyes were closed, but I could tell he was enjoying the sensation. Sarah was clearly in control, and she relished it. After a few minutes of massaging his back, she leaned down and whispered something in his ear. I couldn't hear what she said, but whatever it was, it made Bill smile. Then Sarah lay on her stomach and Bill got up. I watched as Bill straddled Sarah, his hands moving expertly across her back, spreading the oil evenly across her skin. His touch was confident, almost possessive, and I could see the way Sarah's body relaxed under his touch. "Feels good, doesn't it?" Bill said, his voice low and seductive. Sarah let out a soft moan in response, her eyes closed as she savored the sensation. "Let me know if you want me to stop," Bill continued, his hands moving lower down her back, getting dangerously close to the curve of her ass. Sarah didn't say anything, but I could tell from the way her body tensed and the small gasps of pleasure that escaped her lips that she didn't want him to stop. Bill seemed to sense this too, because he leaned down and whispered something in her ear, causing her to shiver with desire. Bill's hands moved down to Sarah's lower back, then to the curve of her ass. He spent a long time rubbing oil into the smooth, round cheeks, kneading them gently as Sarah moaned softly.

Eventually, Bill pulled away from Sarah and she turned over onto her back, her breasts rising and falling with each breath she took. Bill didn't waste any time, immediately starting to rub oil onto her stomach and chest, paying extra attention to her nipples. Sarah let out a moan of pleasure and arched her back, pushing her breasts up towards Bill's hands. I could see the look of intense desire in her eyes, and I knew that she was completely under his spell. As Bill continued to touch and caress Sarah's body, I couldn't help but feel my own arousal growing. I knew that I shouldn't be aroused watching this intimate moment between Sarah and a stranger, but I couldn't tear my eyes away. Eventually, Bill was done and he sat next to Sarah.