Well it seems that you all enjoyed pt2 and pt3, still don't know what happened to pt1! So as you have all requested, here is pt4: I arrived at Michaels about 3.30 on the Friday afternoon. The Birthday party wasn't till the Saturday night, so Michael & me met Bob and a few of the other guys in the pub that night. Just a few drinks, then back to Michaels, just Bob, Michael, me and 2 other guys. They had decided that they didn't want to stretch my arsehole as they wanted me to be nice and tight for the party the following night, so i just gave them all blow jobs. When i'd finished sucking all their cocks i had cum all over me. Bob and the other 2 left, me and Michael went to bed and slept through to Saturday morning. Michael woke me about 8.30am with a tray of toast and a cuppa tea. He sat on the edge of the bed, as i ate and drank, and told me that the party was going to be really good. I asked loads of questions, ie How many guys were going to be there? How many of them knew about me and would be using my young body? What were the ages of the guys? etc etc. Michael told me that the guy who's Birthday it was, was 78 that day and that there would be him (Michael), Bob, 6 guys in their 60's, 3 guys in their 70's, 2 guys in their 80's and a rather nice surprise for me. Of course i asked what the surprise was but he just said i'd have to wait and see. I worked it out that there would be 13 guys there and asked Michael if they would all want to use me? " Oh yes!" was his reply, " And they are all looking forward to seeing me dressed as their cum slut and using me like one!" I had a lazy day, sunbathing in the back garden, as Michael & Bob rushed about making sure everything was ready for the party. The Birthday cake was delivered, the fridge was stocked up with beer and wine, a couple of big bottles of whisky were on the side, some food prepared. Michael seemed to make a lot of phone calls too, but never in my ear shot so i didn't hear anything about what was planned for me that night, except what he had already told me. At 6.30pm Michael told me i'd better go and get myself ready as the party was starting at 8. I went and had a lovely hot bath, shaved all over my body so i was nice and smooth, cleaned my back passage as i knew they would be making me suck their cocks after they had fucked my arse. I went into the spare room to get dried off and pick out what i was going to wear for these horny older guys tonight, and got myself ready. I decided on black basque with black stockings, a black lacy thong, a pair of red high heels, long black wig and of course the bright red lip stick. I didn't bother with a dress as i just felt so sexy in just the undies, shoes and wig. I went down stairs to show Michael & Bob what i was wearing, they both approved and couldn't help themselves, they just had to have a good grope of my sexy body. While i had been getting ready they had both got ready. We all had a large whisky, then at 8pm on the dot the bell rang. Bob went to answer the door and Michael told me to wait in the kitchen till everyone had arrived. At 8.15 Michael came in the kitchen and said they were all there, he gave me another whisky, i downed it and we were then walking into the sitting room. It's a good job it was a big room cos it was packed with the 13 guys. Michael told me to walk around so everyong could get a good look at me. As i walked around they were all groping me. I carried on around the room, about half way round i came face to face with a woman. She smiled at me and said, " So your the sexy cum slut we have heard so much about". With that she reached out and groped my stiff cock through my lacy panties. I carried on walking, letting everyone have a feel as i walked past, then i noticed another woman. Michael told me that they were both in their 50's, one was there with her husband and the other was a widow. After i'd walked around and everyone had felt me up, i was told to get on my knees in the middle of the room. They all started to undress, even the 2 women. The guys all got naked and the 2 women stripped down to stockings, suspenders and high heels. They both took off their bras and panties. Each guy then took his turn at standing in front of me so i could suck thier cocks. When i'd had a little suck on all 13 cocks i was told to lay on the floor, face up. Then one of the women sat on my face and lowered her hairy cunt to my mouth. I stuck my tongue out and licked all round her hole, running my tongue between her cunt lips, then finding her big hard clitty and licking her hard till she came, and when she came she squirted all over my face and in my mouth. She was helped off my face and the other woman took her place and i continued to lick her to orgasm too. We then took a short break to have a drink and some food. As people were stood around talking, eating and drinking, i was again told to get on my knees in the middle of the room. I was pushed down so my arse was in the air. I knew what was next and couldn't wait, i needed some hard cock in my arsehole. My thong was ripped off, that took me by surprise, my arse cheeks were pulled apart and someone got behind me. I felt the hot breath on my twitching arsehole, then a tongue was licking up and down my crack, pushing at my hole, sliding inside me, tongue fucking my arse. My head was pulled up from the floor and a cock was thrust into my mouth. I felt the ky being applied to my hole, fingers rubbing it in, pushing it into my arse, my hole being stretched open so more ky could be poured inside me. As my arsehole was being prepared for a good fucking, the other guys took it in turns fucking my mouth. Then i heard Michael say, " Ok guys, the slut is ready for some cock up that lovely arsehole of hers, who's 1st?" It was decided that the Birthday boy was going to go 1st. He got behind me, rubbed his big hard cock up and down my wet arse crack, then lined it up with my puckered hole and pushed gently till my hole aloud him in. He stopped when his helmet slid in and asked if that was ok? My response was to push back onto his cock till he was buried deep in my arse. For a 78 yr old he had great stamina, he fucked me hard for about 10 minutes. He then withdrew and another guy took his place slamming his cock straight up my arsehole, balls deep and he also fucked me hard for another 5 minutes or so. They kept changing round, different cocks fucking my arsehole, some hard and fast, some slow long deep strokes. When the 8th guy was fucking me, one of the women got under my body so she could see the cock sliding in and out of my arse, it was her husband that was fucking me! She kept licking the pre cum from the end of my cock, but not taking me in her mouth as Michael told her not to let me cum as that was for the end. I was in heaven, having my arsehole fucked, having cocks thrust down my throat, now and then i was passed a drink, but most of the time i still had a cock deep in my arsehole as i drank it. I was put in different positions and fucked just like a proper slut. My arsehole was now loose and wet with all the ky and fucking it had taken. Michael then laid on the floor and told me to sit on his cock, facing him. I got my knees either side of his body and lowered myself onto his cock, taking it all deep inside me. I rode up and down a few times then i was pushed forward, Michaels cock still deep in my arse. Bob got behind me and rubbed his hard cock round my arse, then pushed it in beside Michaels. God it stretched my hole, but having 2 hard cocks deep in my arsehole felt so fucking horny, i really felt like a slut now. Bob pulled me back up slightly so i could ride Michaels cock as Bob slid his in and out of my hole. It started slow and gentle, but soon they were both slamming their cocks in and out of my arse, giving it to me good and hard, till with a grunt they both shot their loads deep inside me. Bob pulled out and laid on the floor with his legs over Michaels so both their cocks were right next to each other. I knelt next to them and took both spunky cocks in my mouth and proceded to suck them clean. As i was sucking their cocks another cock was thrust up my arsehole, i could feel the spunk being forced out and running down my thighs, soaking my stocking tops. This cock soon added his spunk to my hole and i then sucked that one clean. I was then double fucked by another 2 guys, both shot their hot sticky spunk deep inside me before another 2 guys double fucked me, this time they were stood up. I was picked up by Michael and Bob, they lowered me onto the 1st guys cock. I wrapped my legs around his waist and the other guy forced his cock into my arsehole and the fucked me hard and deep till they both filled me with their cum. The 6 guys that were left that hadn't cum yet all told me to lay on the floor. As i laid down, my legs were pulled up and pulled wide apart. Its then that i noticed the 2 women, both stood there wearing big strap on cocks. The 1st woman got down between my spear thighs and pushed her cock into my spunky arsehole. As she fucked me the other woman knelt over my head and pushed her cock into my mouth. This went on for about half an hour, but they kept changing so i had to keep cleaning their spunky cocks. As the 2 women fucked my arsehole and mouth, the 6 guys stood round wanking their cocks, they were all grunting and groaning, then the strap on cock was pulled from my mouth and she moved out of the way. One of the guys shot his load all over my face, then another and another till all 6 guys had covered my face with their hot cum. As i laid there, licking the cum from my lips, the 2 women took off their strap ons. Michael appeared above me with a hugh double ended dildo. Bob held his fist out to one of the women, she pointed to his left one. He opened his hand and there was a piece of paper, she opened the paper up and her eyes lit up. I asked what was happening now and was shown the piece of paper and the one still in Bobs hand. On one it said cock and the other said dildo. My legs were pulled up again and one end of the dildo was pushed up my well fucked spunky arsehole. One woman got down and the other end of the dildo was lined up with her cunt, She pushed onto it, taking it deep into her tight wet cunt and forcing more of it into my arse. As she moved to and throw, fucking herself and me with the dildo, the other woman lowered herself down onto my cock. She slid down taking my whole cock deep inside her, her cunt was so hot i knew i was going to shoot and told her so. She rode my cock hard and fast, my spunk erupted inside her and she came as i finished filling her hole. This started the other woman off and she came too as she rode the dildo, forcing it deep into her cunt and deep into my arse. My cock didn't go soft, it just remained rock hard, so the women changed places and fucked themselves and me till they had both had several orgasms and i finally filled the cunt that i was in. Both women climbed off, i couldn't move, my whole body was so knackered, but well and truely satisfied. I managed to glance at the clock on the wall, it was 2.50am, they had been fucking me since about 8.30pm! When they had all gone Michael helped me to bed. I slept in my cum soaked stockings, suspenders and wig. I was woken in the morning by Michael, he had pulled the quilt back and was sucking my cock, which of course was again rock hard. We spent the next hour sucking each others cocks, then he fucked me, nice and gentle, untill he filled me with his cum again. I stayed for lunch and then left for the journey home. I felt so horny all the way home, i couldn't get it out of my head what a filthy slut i had become. I wasn't just a cum slut for horny older guys, but also a fuck slut for horny older women too! I couldn't wait for the next time that i would be visiting Michael and Bob to see what they would come up with for me. If you want pt5 let me know. Only 4 guys and the 2 women in pt5 but my arsehole was stretched using cocks, dildos and vegitables!