Iv been at my wife Beth for ages now to shag the old man next door called John. He is in his eighties and my wife goes round to help him with meals and housework, but recently she has had to start bathing him cause he can't do it anymore. She finds it awkward because he has such a small bath so I suggested wash him in our hot tub. She agreed, so one night fetched him round. Before hand I had been in the hot tub with Beth licking her pussy. She loves it but I hadn't let her orgasm, I wanted her to be horny whilst washing old John. So anyway I'm lying in the hot tub and round the corner comes my horny wife supporting old dottery John. She is in a dressing gown with a white bikini on that suits her tanned 25 year old body. She has great child bearing hips and heavy breasts with long nipples. I wave to John and he shuffles forwards into the hot tub fully expecting a sponge down. I help him in but joke not to expect a threesome with my wife. I wink at her. Beth smiles and started washing John asking about his day. She told him to remove his swimming trunks so she could wash his privates and I could just make out his penis under the water when he took them off. Beth started washing his penis and I could tell she was having fun by the look on her face and the time she was taking. John just lay back and smiled, his erection now becoming obvious. Beth said wasn't it your eighty ninth birthday recently John? Yes he replied last week. You didn't get me anything he laughed. Here is your present now Beth said, and with that pulled her bikini bottoms to the side and climbed onto John lap. He looked at me and I just winked, Beth parted her labia and placed his cock tip against her fanny lips and pushed down. Oh gosh, John said its so wet and warm. And started to buck up against my young wife. She had released her tits and they spliced out for John to suck. I started wanking at the sight of my young wife being fucked by a man 64 years older than her. I'm going to cum I shouted and splattered her back with my cum. Oh I wanted cum in me Beth said. We're trying for a baby she gasped to John who was steadily pumping her. You wouldn't mind cumming inside me would you? With that John slowed down and I could see his cock swell even more at the thought of getting his young neighbour pregnant. I'm going in deeper he gasped and pushed another inch of cock in. Oh that's my cervix Beth gulped. Careful. John was carefully pushing into her cervix he was that deep. A few thrusts later he started cumming into her womb. I could make out his old balls emptying into her. Years worth of old man sperm looking for a young egg to fertilse. Beth's body convulsed at the thought of becoming pregnant and she had a deep almighty orgasm. They stayed joined together for a moment and John slipped out. Almost no sperm came out though because it was soo deep inside. John made his excuses and left. Leaving us both exhausted and pleased. Beth was too sore for a week for me to penetrate her so she let me wank over her tummy as John sperm sought out her egg. She has missed her period now and the timing is right for her to be carrying old Johns baby. Who wants the next chapter...