This was my first threesome and is what set me on the path to the swinger lifestyle. I was in my early twenties, working with a lawn care company in Carleton Place to save some money for school. Pretty good job as a lot of the customers were on the river or lakes and I was able to enjoy the water now and then. 1 set of clients were two couples that lived in two cottages/house on the same property, 1 lady was married to the brother of the of the other lady. I had been working there for a while so had gotten to know them all. Was working there one day and one of the ladies, Betty, was out, walking around in a very sexy suit. She was a lady in her 50's and was very attractive with a very shapely body. She was joined after a while by her brother in law Bill at the table. Gent in his 50's as well, heavy set with a barrel chest but in reasonably good shape. As I was working I noticed them sitting on the bench(pretty close as well their better halves were away so I suspected something was going on) looking over at me now and then. Didn't think anything of it at the time. When I was done they called me over for a drink, sat with them for a few minutes chatting about the work, weather etc, They said they were going to hit the water and asked if I wanted to join. I was done early so said sure, I didn't have any swimming trunks so I jumped in in my shorts. We swam around for a bit enjoying the cool water on the hot day. I noticed Betty and Bill were very playful in the water and were touching each other a lot. So much so that it was a bit of a turn on for me. They noticed me watching them and started moving closer to each other with their hands touching even more. Bill had his back up against the dock and Betty was facing him. I could see their hands moving underneath the water, touching each others behinds, Betty's nipples were hard against her suit and Bill had the biggest smile . I decided I would leave them alone in case they didn't want any witnesses. Betty asked where I was going and I said I better had back, still technically on the clock. Bill said hell no, you've got us in the mood and she's ready to go. Bill picked Betty up in his arms and started to carry her towards shore. Betty looked at me with the most beautiful eyes and said they could really use a third today. Didn't have to ask me twice. I followed them up the short beach, them kissing each other the whole way. I could see Bills cock hard against his loose trunks. When we got to the door he put Betty down and went to go inside. Betty stopped him and said I just cleaned in here so wet trunks off." Again you din't have have to ask me twice, my shorts were off in no time and Bill chuckled, and dropped his as well. The sun felt nice on my naked body and seeing the three of us there like that had both Bill and I fully hard. I thought Betty would drop her suit as well but she just giggled and went inside. Bill rolled his eyes and we both laughed as we went inside. Once in the bedroom I just stood back and watched as Bill undressed Betty, slide his hands up her wet back and slowly undid the straps to her suit. He followed the curve of her body to her breasts, her nipples fully erect. He started playing with them, squeezing. Her eyes closed enjoying every touch oh his big hands. Slowly he worked his hand down her body to the soft lips of her shaved pussy. With one hand on her nipple and the other fingering her pussy he slowly brought her to climax. I was just standing there taking it all in. She turned around towards Bill, started kissing his lips, moved down to his neck, chest, nipping at his grey chest hair around his nipples, slowly down his belly, until she was on her knees at his cock. She slowly took the head in her mouth and started sucking. Bill let out a moan and arched his head back. I stood there watching as Betty moved slowly up and down that cock. I thought I would be better sitting down so I went to grab a chair, but Bill grabbed me by the shoulders and said where do you think you're going? He pulled me next to him so both our cocks where at Betty's face. 'There you go sweetie, two cocks for you, can you take care of them please?" She left Bills cock and with out missing a beat slide her mouth down my cock. This was my first BJ so it didn't take me long to start to cum. As I did my breath started getting shorter, Bill had his arm around my back pushing closer to Betty. "Here he goes baby," he said as Betty slide her mouth down my cock one last time as I came. Bill grabbed my ass and pushed it towards Betty. "That's it baby suck him dry, oh twice his age and I outlasted him"he said with a smile. When I was finished I finally grabbed that chair. Bill got Betty on the bed all naked now and him still hard as a rock. He pulled her to the edge of the bed and was about to slide into her but she stopped him just before he entered. Betty -"put a condom on I don't want Dave getting sloppy seconds." I wasn't sure what that was at the time, these days I thank her though. Bill jokingly mumbled something about wearing a condom on his cock at his age but complied. Betty had some in her bedside table. I thought they were a little old for condoms but I got the feeling that I wasn't the first younger guy she had visit her room. Bill threw one at me to but I thought I would wait a bit before putting it on. Bill jumped back on to the bed lay his big hairy chest on Betty's chest and slowly entered her. Bill went slowly for a while while Betty moved her arms all over him, she couldn't stop moving and moaning while he slowly slide his shaft in her, her hips raising up to meet him, leg wrapped around hi muscular back. This went on for about 15 minutes, finally Betty started to move faster.Started crying out for Bill to fuck her harder deeper, Bill was quiet, concentrating on the pleasure he must have been feeling, Betty started that familiar breathing again and before I knew it she was cumming,hard. Bill just wrapped his muscular arms around her and held on as she came. Never heard cries so deep and passionate as she made. After she had finished with Bill still on top of her, he slowly sat up. I thought he had cum to, just more quietly, but he got on his knees threw her legs on his shoulders and started fucking her again,faster this time. From where I was sitting I could see his tight balls bouncing against her wet pussy. He was going for broke this time, thrusting into her much faster and harder than before.Betty seemed to love it just as much, she was hanging on to the head board,eyes rolled back.Loved to watch her tits bounce as he thrust deep into her.They were talking more this time to. Bill.God that's a tight pussy, you're such a good fuck, just love sliding my cock in you. Betty(out of breath) Bill you are so big in me,oh god, don't stop, Bill not going to stop baby till you make my squirt and I fill you up.Good look those tits bounce when I fuck you Another 10 mins went by, Bill was getting flushed I could see sweat on his forehead and chest. I thought he was going to cum or pass out. But before either happen Betty arched her back and came again. She yelled so load I thought the neighbors down the road or boaters going by would hear. Bill "aww god cum baby, aww I feel you cumming on my cock." He had slowed down his thrusting a little, but not much, he gradually got back to his pace. Betty looked worn out just lay there looking him with a smile as he kept sliding into her. After a minute I said "Are you kidding me Bill, you're amazing."He looked at me, "you better get that cock over here so you can keep her going." I jumped on the bed beside Betty, started kissing her breasts and nipples.slowly moved my hand down to her pussy.Fingered it, moved down a bit further, and I could feel Bills cock as he moved in and out, I rubbed her pussy at the same time,"right there" he said. I looked up he had his head back, hands tight around Betty waist. He was covered in sweat, thrusting faster, finally "yes yes oh fuck oh god ahh" he thrust a few more quick hard thrusts, then was was still. "Oh my god that was good, oh christ." He pulled out of Betty and I looked at the full condom.Both of them got of the bed and headed to the washroom.I was there, horny as hell, not sure what to do. Finally I said screw it and started to masturbate. I heard some rustling "Betty the young lad is waiting.He's got a pretty good cock just right for riding by the looks of it." Betty walked out, I thought she was done but she still wanted more, she jumped on top of me, our bodies rubbing and touching all over, she wanted more and I was ready, slowly she slide down on my cock.I thought she would be not overly tight but she knew how to work those muscles to squeeze me. I lay there her tits dangling in front of me while she rode.Bill silently watching the show sitting at the side, slowly playing with himself, from what I just witnessed it wouldn't surprise me if he could go again.Betty, slowly building with her movements, had me going insane, she leaned back, moving me in and out, I didn't think I could hold much longer, just as I was about to release so did she.We both screamed, moaned yelled, swore and cam for what felt like ages. She fell fell forward on top of me and we tonged and kissed, so passionately. Bill:"Great fuck isn't she Dave, we'll have to have you back I haven't seen her this horny since we first fucked." We chatted for a while, I thanked them both so much, got big hugs from both. They said they were amazed at how strong their cumming was with a third person. They thanked me for everything even though I was the one with the life lesson.Went back a couple times for work but never saw them again, short time latter I was in school and didn't get out that way too much. As I said this what has pretty much shaped me sexually for the last 20 years. Was never able to look at mature people the same way again, to me they are some of the most sexy, alive, and passionate people you'll see. This is what I am looking for again on this site. Hope you enjoyed my experience.