In my previous posts, I told you how my wife started sunbathing topless in our back garden, watched by our next door neighbour, Clive, and this developed into her having sex with him in our spare bedroom. I’m not sure whether I had started to feel left out, but Clive’s wife, Celia, had become suspicious, and was trying to find out what I knew, which developed into us having sex in their marital bed. The amazing thing is that Clive and Celia are more than twice our age, but it didn’t seem to make any difference to Eva and me, we both enjoyed it enormously. The rather strange aspect was that I think I was the only one of us that knew for certain who was having sex with whom, and I was keeping that knowledge close to my chest. I had only had sex with Celia the once, while Clive had gone on a short walking holiday with some of his mates, and it was proving difficult to arrange another session on our own. As luck would have it, Celia’s mother had to go into a nursing home for some respite care, so it meant her home, which was close by and which Celia had keys to, would be empty for a while. Celia and I had exchanged mobile phone numbers so we could communicate in secret, and she texted me to let me know she would be able to provide a venue for clandestine meetings for the next couple of weeks. As luck would have it, Eva was due to work on the next Saturday (she works in retail, so it she has to work the occasional weekend) and Celia said she would tell Clive she was going over to her Mum’s place to have a clean-up while the house was empty. She would go over there first thing to do a bit of tidying and I was to join her at about 10.00 am. She was watching for me from the front window, Celia didn’t want any nosy neighbours asking questions, so she let me in as soon as I arrived. In case anybody did notice, she said she would tell them I was a friend who had agreed to sort out a blown fuse, or something like that. As soon as she closed the door behind me, we were locked in a passionate embrace, hugging each other with hands wandering here and there. Celia wanted to go upstairs straight away, but I said no, the foreplay is the most important part, so we carried on snogging and mauling in the hall. As I stroked her bum and round to her thighs, I could feel suspender straps, Celia realising what I had discovered said “I thought you deserved a treat today”, and I said “that’s nice” before pulling her skirt up to feel round the top of her thighs. I stroked the expanse of bare flesh above the top of her stockings and she wiggled her bum. As I slid my hand upwards, I realised she had no knickers on either, so I was able to slide my hand round the front to her pussy, which I quickly realised when she parted her legs was very wet already. She said “if you don’t take me upstairs soon, I am going to cream myself all over the floor”. We rushed upstairs, pulling our clothes off as we went and by the time we got to the bedroom, we both wanted to get naked asap. Celia kept her stockings and suspenders on, I would have asked her to anyway, and I wanted to keep my boxers on initially, but she was having none of it, pulling them down so she could begin slurping my cock greedily. I managed to get her round into a 69, so we could both pleasure each other, as we lay on our sides. Celia had said downstairs she was already aroused, and I was in no doubt as her vaginal juices leaked out onto my tongue. She orgasmed noisily, I hope the walls of the house were reasonably thick in case the neighbours were at home. With Celia slurping away on my cock, I realised I could not hold back forever, but it was Celia who took the initiative, turning herself round and pushing me onto my back before mounting me. With one foot on the bed to raise her hips, she lined my cock up on her waiting pussy, smiling broadly as she slowly lowered herself onto my rampant cock. Once fully impaled, she squeezed my cock with her vaginal muscles and then began slowly sliding up and down on my cock. I really had to concentrate to avoid blowing my load immediately. I managed to get Celia to bend forward so her pendulous tits hung down in my face and I could suck her nipples in turn. Doing this with my wife’s tiny tits was most enjoyable but I found it could be just as much fun when I couldn’t get the whole of Celia’s boobs in my mouth. After she had fucked herself to a noisy orgasm, I rolled her over, still with my cock deep in her pussy, and fucked Celia some more in the missionary position. “Do it harder” she demanded, “make me cum again …… harder …… harder …… oh I’m cumming, I’m cumming, I’M CUMMING!” As you will imagine, trying to maintain my composure with such a lusty woman making those sort of demands was proving difficult, and I flooded her inside with my seed. She wrapped her arms and legs around me to hold me firm as she squeezed my cock repeatedly inside her vagina. I don’t know whether I should compare sex with Celia to making love to my wife, both were just as satisfying, but Celia is ample and mature, with lots of soft flesh to enjoy, whilst Eva was young and athletic, not an ounce of waste flesh on her. There again, Celia was no less active and assertive, so perhaps they were quite similar. As we calmed down, Celia said she would have to be home by early-afternoon to avoid Clive becoming suspicious, but we should have time to fuck again if I could manage it. She said it looked as though her Mum would be returning to her home within a couple of weeks, but we may be able to arrange another get-together on the following weekend. I said that Eva was due to have the whole of that weekend off, so it may be difficult. She then asked me whether I wanted to arrange another ‘get-together’ with her and I said yes, of course I do. Celia then said I had not actually told her whether I knew if Clive was having sex with my wife, Eva. As I said earlier, I had managed to allow her to think he might be, without having to admit that I had a video record of numerous occasions when they had fucked in our spare room. I told Celia again that it was possible, but I couldn’t say for certain, not wanting to discourage her desire for sex with me. We cuddled a bit more, I was quite enjoying being with a woman who had something to hang on to, even laying on her back I could maul her ample tits and she wasn’t inclined to stop me even though we were having a serious conversation. Eventually, Celia said she was going to confront Clive with her suspicions. She said she thought they had been married too long for it to end their marriage and, if he was, it would give her the opportunity to admit her time spent with me. She said she didn’t like living with secrets and, who knows, we might all end up as ‘four in a bed’, which she thought could be fun. I didn’t say anything initially, I was trying to work out what I should do to avoid a major row with Eva. In the end, I decided that I could just tell her, diplomatically of course but, as she was getting her pleasure with Clive, she couldn’t really object to me getting the same with Celia. Maybe I would feed the information to her gradually to avoid a sudden admission. Having agreed our strategy, Celia asked if I was ready for some more fun and when she started to stroke my cock, it was soon rising to the occasion. She wanted to suck me first but there was a brief battle to gain the upper hand and I won, pushing her onto her back, where she allowed me to push her legs apart and dive in with my tongue. I knew I could probably repeat fairly soon, but I wanted to make sure she orgasmed sufficiently first. With one hand reaching up to maul her tit, my mouth smothering her clit and sucking it between my lips, and two fingers vigorously frigging her pussy, I soon had her orgasming noisily, which I managed to maintain for several minutes. She closed her legs around my head eventually, restricting my movements, so I had to let her calm after a while. As soon as she released her vice-like grip on my head, I crawled up to kiss her nipples, then her lips, before sliding my very stiff cock into her waiting cunt. We fucked, initially in the missionary position, then doggy from behind, then missionary with her legs over my shoulders. I didn’t have to concentrate on not ejaculating this time, so could happily fuck her as hard as she wanted, she was certainly very demanding. When I eventually announced that I wanted to cum, she said “oh yes, fill me up, make me cum again”. I have often wondered whether the amount of sperm I produce on a second cum can be as much as the first, when I have been storing it up for a while, but suffice to say the pleasure I get from delivering it is just as ‘orgasmic’, and Celia’s orgasm was just as fulfilling for me. We decided that we should return home separately, me leaving her mother’s house first and going for a walk round the park for half an hour before going back home to allow a ‘decent’ period between our arrivals. I decided I would start telling Eva about my ‘indiscretion’ that evening and I hope to tell you next time how the situation developed.