This account is nowhere near as erotic, outlandish or exciting as many on here, however, it is true, and I thought I'd share it. My wife Sarah and I have been married for thirty years and have a great marriage. Recently though very little has been happening sex wise as we both got older, and I guess a little boring. A year or so ago my wife's best school friend who she'd known from the age of five, moved back to the area. They were really happy to be reunited and went on shopping trips and so on together. Her husband is a workaholic and I was always hearing moans about how he never did anything with her socially. After a year of being friends again my wife told me that Jill, her friend, had invited her to go on a shopping trip with her to London, I said that sounded fun and thought nothing of it. I didn't question it when my Sarah wife later said they'd be staying the night and going to see another old school friend of theirs who lived there. So they went away for a day and a night and came back with bags of shopping. My wife wanted to have a bath after we'd eaten that night, and while the water was running and she was getting ready, her phone lit up and a message dropped from her friend Jill. I picked it up to take it through to the bathroom thinking it might be important and saw the first line which read "That was sooo nice, I told you it would be! " I thought little of it. A few weeks later I was in bed feeling unwell and off work. I feigned sleep as my wife popped her head around our bedroom door to see if I was alright. She closed our door firmly and went downstairs. I got up and opened the door again, and then I heard voices, it was her friend Jill and her talking. I went to the end of the landing and listened hard, I could just make out their conversation, and could I hardly believe what I heard. Jill was saying how she had used her vibrator thinking about their night together, and how she was so glad my wife Sarah had finally agreed to let her get her into bed. My wife was giggling nervously and said it was very naughty and they shouldn't have done it, but it was fun. A week later my wife told me Jill's husband was away and she was going to help her decorate a room in her house, and, did I mind if she stayed over as it was going to be an effort to get it done before Jill's husband was back, and it was supposed to be a surprise for him. I shrugged and said it was fine. That evening while my wife was getting ready for bed I rather guiltily checked her phone, to find a message she'd sent to Jill saying "Yes! I'll bring my toy as well this time!" The day of the "decorating" trip arrived and after my wife left I checked her knicker draw. Her vibrator, which she calls her "toy" was missing. That night I wanked myself silly imagining my wife and her friend in bed together. When she got back I asked her if she'd had a good time. I said I was putting some washing on, and when she went to the loo, I grabbed her bag and emptied it so I could "innocently" put her dirty clothes from her day and night away in with the washing. She walked into our utilitiy room just as I was putting her clothes into the washing machine and as I'd hoped, her toy fell out with her washbag. "I think you've got something to tell me" I said to her picking it up. My wife got flustered and started to cry as she fumbled for some words. I just hugged her and said "it doesn't matter, you can mess around with Jill if you want, just be honest and tell me" With that she smiled. I told her it turned me on a lot, and she led me upstairs. We both stripped and she wanked me whilst telling me how Jill had seduced her in London and that she didn't want to, but that she'd given in after Jill had kissed her and pushed her fingers into the waistband of her knicks and found her clit. Now it's a regular thing and both myself and Jill's husband are ok with it. My wife spends one night a week with Jill, either at ours, and I sleep in the spare room, or at Jill's when her husband is away. I get to hear about what they've done, although I'm never allowed to watch. They have bought a number of toys and I get a full run down of who did what to who and how. My wife also now keeps her fanny shaved as Jill prefers it that way. She's even allowed me to have anal sex with her. We're both happy and no harm is done. I'm pleased with my wife's new found sexuality and her increased sex drive, it's just a bit weird when Jill comes round and after eating a meal together, she and my wife go to our bed and I sleep in the adjacent room, well sleep that is after I've listened to our marriage bed creaking and the sound of vibrators and a few giggles and gasps, as Sarah and Jill bring each other off. I cum too, like I used to decades ago as I listen and picture them with their fingers and mouths on each others breasts and bums. They're planning a week away in Spain together, but on the understanding that I will get text updates of when they are about to go to bed and phone calls afterwards from my wife, giving me the lovely details so I can relieve my aching cock at home in our bed.