My inlaws are your normal couple they have their routine, things they like to do, just your average couple heading towards retirement. One saturday afternoon last summer I was painting the bathroom when the phone rang, the wife answered it chatted for a few minutes then came up to see me. "Are you busy?" was all she asked, I said "well apart from finishing off this painting no". "That was my dad" she said, "he's just asked if you could shoot over and give him a hand moving a chest of drawers". "Tell him I'll call over in an hour if that's ok?, I'll finish up here and have a quick wash then go." So an hour later I was on the way over, they only live ten minutes away so its no big deal to just pop round for a few minutes. When I arrived the MIL was in the garden enjoying a bit of sun and Gin, she is one of these ladies who has an all year tan as during the summer she sits in the garden all day and makes her self so dark it takes a few months to fade. Now the mother in law has alwasy been a good looking woman she is about a size 14 with large full tits, but has slim well shaped legs, which are kind of at odds with her large bum. The FIL was sat in just his shorts next to her again with a Gin, they have one of these doors that doesn't lock unless you turn the key so when i got there I just let myself in, and walked out into the garden to see them. The MIL was sat in a shorts suit with the shorts pulled right up to the top of her thighs and the straps from the top pulled off and the top pulled down to just above her nipples. This was not an unusual site for both of them especially during the summer as they were a pair of sun worshippers. I sat on one of the garden chairs and chatted for a little while made some small talk then eventually said "right where's this chest of drawers?" So the FIL took me to his car opened the boot and we got the chest of drawers out then carried them up to their bedroom where they had made space for them to go. As I came down the stairs the MIL had decamped from the garden and was sat in the living room, I went in to say goodbye at which point she asked me to hang on a minute as the FIL need to ask me another favour. "I'm gonna start charging for these you know" I said. I heard the toilet flush and down cam the FIL, he went to the garden got his Gin and came back into the living room. All this time i was just sat trying my best not to stare at the MIL tits as they look lovely especially when she has a dark tan. He came in sat next to her on the couch and put his legs up, "we've a favour to ask he said but you cant let K know", K is my wife. "OK?" a bit puzzled as they never kept anything from her. They both looked at each other and the MIL took his hand then he said "it's a bit delicate, we understand if you don't want to help but would really appreciate it. You know i have had back problems for a long time and can be in a lot of pain with them?" "Yep" I said "Well its affecting me even more now and getting much worse, too the point were i'm having problems down below" "What like going the toilet?" I said "Not quite" he took a swig of his Gin and the MIL blurted out "he cant get an erection" I was taken aback by this as she had never spoken like that around me and the FIL definitely never spoke about anything like that. "Ok?" I said "I'm no doctor so i don't think there's much i can do to sort that out" "Well" he said "It's not about me its about her" The MIL piped up, "we do love each other but theres only so much he can do with his mouth and hands" I couldn't believe I was sat having this converstaion with them I think I actually started to sweat feling a bit awkward, "So what do you want from me?" "Well" he said "would you be willing to go to bed with her" "Really?" I said "Cant you get little blue pills to help you out? You do know they have toys and things these days?" "Yes" he said "the viagra is no good as I cant get a good motion up as my back hurts too much and she doesn't like the feel of the toys" "Why me?, surely you've got loads of freinds who would want to give her one?" The MIL chirrped in and said "we want some one who is discreet and will not tell anyone about our problems, if we chose one of his friends it would be all over the estate by the end of the weekend, It would be embarrasing for both of us. It's fine if you don't want to I can see the worry on your face." "It's not that" i said " I just need to know the two of you are comfortable with what you are asking ? this is a big decision for you." "We know " he said "I've had the problem for just over a year and we've been chatting about it for the last couple of months as I can see she's not completely fulfilled, not like when we used to do it. It was only a couple of months ago she admitted to missing the feeling of me inside her. As I said I tried the pills, and the other things but it just wasnt the same, even with her on top the pressure on my back is too much." "Ok" I said "when would you want it to happen?" "Well hows about now? I'm just on my way the pub as you know and will be gone for a couple of hours" "Are you sure about this?" I said As I said they have their routines and one of his is going the local every saturday, unfortunately covid has kicked that a bit. I looked at the MIL she still had the straps down on her top and her tits were bursting out as she was breathing heavier waiting form my response, I couldn't help but want to get them out. "Ok" I said but K must not know anything about it. The FIL went and got a t-shirt on and his flip flops to walk down to the pub, after he was gone I sat with the MIL for a few minutes chatting making sure its what she wanted, she was adamant it was. So we locked the front door and headed upstairs. When we got to their room, she turned and kissed me, stopped looked at me then kissed me again, shen tasted of Gin and rhubarb, apparently the flavour of Gin she was drinking. At first the kiss was just lips then as she relaxed she pushed her tongue toward my mouth so I opened mine and our tongues met, I couldn't believe what was happening and had the biggest hard on I'd had in ages. She put her hand down and was stroking my cock through my shorts, I pulled at the shorts suit and both her tits fell out. Wow what a sight I had been wanting to see her tits for years and it was finally happening. I leaned over and started to kiss her neck then down to the top of her tits making my way down slowly to her nipples, as I took her nipple in my mouth she let out the slightest moan. As I sucked each nipple in turn i hooked the shorts suit with my thumbs and pushed it down, I stopped and took a look at her, here was my MIL infront of me naked, her hairy bush looked so inviting. I stepped into her again and started to kiss her then gently pushed her back toward the bed, as we got to the bed lips still locked she sat down. I Stopped kissing her and gently pushed her shoulders back she lay backward on the edge of the bed with her legs hanging over I kneeled down infront of her, placed my hands on the underneath of her thighs and lifted then spred her legs. I could smell her musky scent, It was unbeleivable, I swear I was nearly cumming in my shorts. I started to kiss her thighs, then moved up and placed my face in her hair and let it tickle my face for a few seconds. Then i slipped my tongue between her lips, searching for her clit, I began to lap at her licked every inch of her pussy she started to moan "Ohh that's good, Ohh that's nice". I had to undo the zip on my shorts and let my cock out it was hurting being stuck were it was. I licked and found her clit then started to push my tongue hard against it and quickly began to move my head from side to side, I had her legs pushed up so her knees were touching her tit's, and was holding them there by the backs of her thighs. After around 10 mins I heard a sudden gasp and she brought her hand down onto the back of my head as she was saying "don't stop don't stop, move up a bit" I lifted my head a bit to lick toward the top of her clit then realy started to shake my head from side to side pushing as hard as i could into her with my tongue" She was now pushing the back of my head into to her and bucking with my tongue and trying to rub my face backwards and forwards across her pussy. A few seconds later I heard her " oh fuck, oh fuck, ohhhhhh fuuucccckkk", it wasn't a shout more of wisper of satisfaction , then she started shaking her pussy riding my face, I was rock hard it was unbelievable. Slowly she came down, and I lowered her legs back to the floor, "that was amazing she panted" I stood up took my t-shirt off and lowered my shorts, my cock now standing on end not the biggest cock at 8 inches but a good size none the less, and pretty thick, (which is one of the things which stops my wife and I having anal) was ready to go. I climbed onto the bed next to her and had her lay on her back next to me, I leaned in and kissed her, ( I love kissing after I've just licked pussy). She was feeling my cock, "some ones a big boy" she said, are you going to put it in me?" "That's the plan" I spat on my hand then rubbed it on the end of my cock, I lifted her leg whilst he was on her back and positioned my cock at the entrance to her pussy. All i could think was do not cum straight away, make this last but I was so excited. I slowly began to push at her entrance which was well lubed from the licking I had just given her. As I slowly slid in her she moaned very lightly as did , "that feels fantastic" she said "have you any idea how long Iv'e needed this?" Have you any idea how long I've wanted this I thought. I slowly began to fuck her, I wanted her to enjoy me being inside her, I wanted her to enjoy the moment as who knows when we would get the opportunity again. After a few minutes of sliding my cock in deep then pulling out to the tip and sliding it back in again, I'd been having a good feel of her tits, I let my hand slide down her front to her clit. There was no resistance to this so I licked my fingers and placed them back there then began to rub. I was rubbing in wide circles in time with the slow thrusting of my cock. After a while her breathing began to get deeper and "Oh faster she wispered", she had her eyes closed and I could see she was urging herself towards another orgasm "oh faster" her wispered voice was now shaking "oh god I'm gonna come again, oh god" she now started humping her hips trying to ride with my ciock movements she got faster and faster, "oh fuck, oh fuck, yes yes, yessssssss oh my ohhhhhhhh!". She came hard on my cock i was delighted about it, I was like the cat that had got the cream with a massive grin. I slowed my fucking down and stopped. "Have you, you know" she said. "No I haven't come yet" "You're messing why not" "I was trying to make it last to give you at least two orgasms, but i'm ready to now" So I pulled my cock out, kneeled on the bed, between her legs delighted at what was going on. I lifted her legs and rested her heels on my shoulders then I gently pushed my cock back in side her. I started to fuck her, I bent her legs at the knee and held the back of her thighs so her legs were spread but pushed up to give me better access. I started to get a bit carried away, "ow ow" she said "too deep too deep", so I relaxed her legs which gave her a better feeling it must have been about five minutes later, I was sweating and panting, "I'm gonna cum" I said "oh god don't stop, I think I am aswell" "what again!" "Yes, keep going, keep going, oh oh here it comes, ohhhhhhhhh" At that point i couldn't hold back I released what felt like a river of cum inside her it was unbelievable. As I finished I rolled off to the side of her catching my breath and sweating, "thank you" she said "I've needed that for ages" As we lay there I put my arm around her and had a cuddle whilst feeling her tits, we kissed some more then got up to get dressed. It had only been about and hour since the FIL left but what an hour. Due to covid we've not been able to repeat, although we have seen each other and when she gives me a hug and kiss goodbye if no ones looking I give her bum a squeeze.