I have been married to Julie for 15 great years. She is beautiful smart and sexy with a terrific figure that is full and very busty. The old adage is to look at the mother in law to see what your wife will become in time. So it was no surprise really as Liz, Julies mum is also a stunner for her age 58 with an even fuller figure and larger breasts. Therefore it should be no surprise that I have entertained the idea of fucking Julies mum on many occasion\'s. Especially when we have been on holidays abroad when the women have sunbathed topless. That was serious wanking material. On the odd occasion I would be asked to put suntan lotion on them and would always manage a sneaky grope of Liz,s tits and sometimes rub close to her fanny when doing the backs of her legs. I some times think she opened her legs a little wider so I could rub higher and get better access to her cunt. Liz was always sexy and elegant that when ever I had an encounter like this with her, as soon as possible I would get Julie alone and fuck her stupid cumming buckets. I have never thought that I would seriously have a chance of fucking Liz because of her relationship with her daughter as they were so close, plus she loved her husband and was very affectionate to him. About 2 months ago we got a phone call about 7pm and it was Liz saying that there was a problem with their water and as Dan was away on business could I pop round to see if I could sort it out. I changed and put some tools in the car and drove over to the in-laws to see what was the problem. The problem was easy to fix and Liz was happy that I had sorted it so quickly. Liz was wearing her silky night dress that clung to all her curves to perfection and as she walked across the living room her breasts swayed stunningly with very large nipples jutting out. She asked would I like a cup pa for all my hard work and flippantly I said \"yes if thats all you have\". Liz made no reply but stopped momentarily by the kitchen door. I watched the TV for the 5 minutes that it took to make the brew and was pleasantly surprised when Liz returned. As she lent forward to place the cup down I could see right down her to and couldn\'t take my eyes off the stunning tits that swayed in front of me. She then went and sat in the chair opposite me hitching up her night dress as she sat down with her legs tucked sideways. This gave me a perfect view of her arse and cunt without even trying. We passed general conversation about work, kids, etc but all I could think of was her getting my cock rammed up her arse and fanny. There were a couple of pregnant pauses which only made my condition more uncomfortable when eventually I said I needed the loo and nipped upstairs. Not only was I bursting but I had a raging hard on so I had to wait before I could piss and therefore I was in the loo for quite some time. When I eventually flushed the toilet and vacated the bathroom, Liz was in her bedroom and called to me. My heart skipped a few beats before I entered the room and my heart nearly stopped when I saw Liz. She was kneeling on the bed with her arse and cunt exposed and she was pulling her cheeks apart. I was frozen for a few moments before I edged forward,eventually reaching the edge of the bed. Nothing happened for a further few moments as my mind was racing about all the ramifications that would befall us should anything happen, but my cock was bursting to get out and I thought fuck it. I sank to my knees and buried my face in her gorgeous cunt and arse licking and slurping like a man dying of thirst and finally being given a drink. Liz cried out into the pillow muffling the sound as her body shook violently. I stood up and removed my clothes releasing my 9inches of very thick cock which had been desperate to fuck this woman for 15 years. I rubbed my bell end up and down her crack lubricating my cock. I then wanked her clit using my knob whilst I inserted two fingers up her arse. Liz exploded bucking wildly from the hips as she grunted into the pillows. I waited until she was gasping and crying then I rammed my cock into the hilt balls deep. She shook from head to toe and opened her mouth but no real sound came out other then a staggered breathing. I grabbed hold of her full and soft hips pulling her hard onto me. I then started to withdraw before slamming back in to this sexy bitch. She felt better than I had ever imagined. I started to pump my cock in and out as she bucked to meet my thrusts. She was crying and asking me to treat her badly and to do what I wanted. I pulled my cock out, pushed her head hard into the pillows and rubbed my knob at her anus. She tensed up and tried to pull away screaming \"No,No\".Too late bitch as I eased my knob in to her tight arse hole. She grunted and screamed at the same time, but I held her firm so she couldn\'t move. I let her adjust to my girth before I pushed further and I slowly very carefully worked my cock right up her arse. When I was fully in, I crushed her on the bed using my weight and grabbed her massive tits. I started pumping my cock faster and faster whilst biting her shoulder. She grabbed my hair calling me a bastard as I ploughed her tunnel.I whispered I\'m cumming you fucking slag as I erupted deep up her arse. I ouldn\'t stop flooding her as I shot more spunk than ever. It was the best sex I have ever had without question. The phone rang and it was my wife asking \"how long is Dave going to be mum\" Liz replied \"another hour or so I think love\" With that she put the phone and turned to me, stuffing my cock back in her mouth. After about ten minutes of that lovely mouth working on my cock I was hard again. Liz straddled my prick and fed it into her hot fanny pushing down hard until it was all in. she lent forward and fed a large engorged nipple into my mouth as she rode my cock. I sucked hard as her cunt was gripping the life out of my prick. She was a tremendous fuck and I was fighting to hold back my cum. Liz said \"well what do you think Dave, do you like fucking your mother in law then\" I just groaned and nodded. Good she said \"I need fucking more often and I want your cock\" \"What about Julie\" I said \"She\'s had your cock for 15 years Dave its my turn now and I want your cock as often as possible, anytime you fancy a fuck I want you to see me first right you bastard\" What else could I do I just nodded as she ground down on my tool. She rolled off me and lay on her back with her legs wide open. I manoeuvred myself between her legs and sank my cock right home. She locked her legs around my back and urged me to fuck her as hard as I could. I was pounding into her as she started to orgasm again and again. \"I love you she screamed, fuck me, promise me you will keep fucking me any time you want. Promise me, promise me\" Yes Yes Yes I erupted deep in her womb. It was truly, truly amazing! Liz clung onto me milking my cock till it was dry. I pulled out and lay on the bed as Liz started to clean all the mixed juices off my cock with her tongue. We don\'t want you to get into home do we. With that she picked up the phone and phoned her daughter. As she was wanking my cock she was talking to my wife. Iwas amazed as my cock started to respond and as it rose to full size, Liz with a wicked smile mounted me again whilst talking to my wife. \"Its a bigger job than he first thought, do you want me to send him home or shall I put him to good use here dear\". I could hear my wife say \"He may as well stay there mum, I\'m going to bed now anyway\" \"Tell him yourself dear\" and with that she handed the phone to me. Liz was slowly pumping up and down on my cock with her tits pushed hard against my chest. Julie said stay as long as you need to darling its very good of you to do this for my mum. I said that it would take a couple of days at least. Julie said that she would see me tomorrow night then hung up. As I put the phone down Liz let out aa huge sigh and long moan. I bit into her neck and pulled her hard onto me as she drove herself to another orgasm. Again I found myself cuming for the third time that evening. After we had subsided, Liz said your mine now Dave and you know it! More to Come!