My wife Maree and the kids have been overseas for four weeks. I was on the phone to Maree yesterday and she was teasing; rubbing her pussy, deep breathing and talking about what she will do to me when she gets home. I was getting excited and told her if she didn't get home soon I'd have to seek pleasure from one of her friends. She asked "which one?" and I told her I'd seen Lisa at the pub the night before and she would do just fine. This did not surprise Maree as I had fantasised about a threesome with Lisa for some time and Maree knew I found her very hot. She told me "good things come to those who wait" and to keep my hands off her friends. Not long after we finished talking the door bell rang and I opened it to find Lisa standing at the door. Lisa is in her early forties, tall and athletic with the firmest breasts. She was wearing a black dress with buttons right down the front and said she was here to pick up a book that Maree had said she could borrow. I invited her in and noticed that her two top buttons were undone - I couldn't help but look at the undone buttons and try to sneak a look at her bountiful boobs. I told Lisa to go through to the kitchen and I went to find the book. While I was looking my phone beeped as a text message came in. I grabbed my phone and it was a message from Maree, "enjoy". The message went straight to my cock and I was instantly rock hard. I went back to the kitchen and Lisa was standing there in the sexiest matching bra and knickers I ever recall seeing. Her boobs were just about fully exposed; she came right up to me and asked if that message was from Maree. I told her it was and she said she also had a message from Maree for me. Lisa then reached down and undid my belt and trousers. With very little effort my cock sprung free and Lisa soon had it in her hands, giving me a gentle hand job. I reached behind her and undid her bra, releasing her beautiful boobs. I nearly came right then - they were even better than I had imagined. She leaned over and took my cock in her mouth and in what seemed like no time at all I exploded a load of cum into her mouth. Lisa swallowed the lot, stood up, gave me a peck on the lips and said "you were desperate weren't you". She took me by the hand and lead me into the bedroom and motioned for me to undress and lay on the bed. I was in heaven and instantly hard again. Lisa took off her knickers, climbed onto the bed and stood above me. She leant against the wall and showed me her glistening pussy. She was playing with herself and slowly started to writhe and moan. I watched on as she gave herself a shuddering orgasm. By this stage all I wanted to do was eat her swollen pussy. I grabbed her thighs and drew her down onto my mouth. She tasted sweet and I used my tongue to expore every part of her dripping vagina. Lisa started to moan again and was grinding herself into my face. She had a second orgasm right there. Lisa rolled off me and started gently rubbing my cock. She said Maree had called her and asked her to do a favour. She told her I was hanging out for sex and wondered whether Lisa could help. I said "you've certainly helped". By this stage I was ready to burst. I rolled her over to the edge of the bed and lifted her by the thighs so her pussy was looking straight at me. I slid my cock into her from behind and she said "you have to fuck me hard". I didn't need to be asked twice and starting thrashing as hard as I could. It was the noisiest fuck I've had. The sound of me slapping against her, Lisa's moaning and the bedhead banging against the wall. When I came it seemed to go on forever. We were both spent and talked small talk for a couple of minutes before Lisa got up to leave. Not long after she had gone my phone beeped again. Another message from Maree "You can tell me about it when I get home". I am thinking I might have to show her.