My name is Tracy and I work in a care home. I work the night shift and as a rule its pretty quiet as most of the residents are asleep. There isn’t much to do until we have to get everyone up in the morning so between 11pm and 6am we are pretty much left to ourselves. As you can imagine it’s pretty boring and because of this I started chatting with one of our residents late in the evening by the name of Jack. Jack is a bit if insomniac so at midnight I’d pop and have a brew and a chat with him. He’s in his late 60’s and a bit of a silver fox. Tall slim and very distinguished. He’s like my granddad as I’m 24, married for two years with 1 child. Jack is a terrible flirt and always telling me how pretty I am. To be fair, I think I look pretty good too. Not that my husband ever notices. I have a bit of a baby belly, but I have a pretty face with a cheeky smile (so Jack says), Short, brown hair, DD boobs and a bum that's just a little bigger than I’d like. A few months ago I was taking the cocoa in to Jack’s room and caught him masturbating. His cock was exposed and he was pumping away as I entered the room. To be honest in my line of work you see a lot of men’s bits. But this was hard unlike the rest I’ve seen and he didn’t stop wanking when he saw me. He simply said, “I was just thinking about you.” “Not while you were doing that I hope.” I replied, indicating his dick in his gnarly hand. “Of course I was wanking over you, Tracy. A man has needs and your a very pretty girl.” He said with a smile. I put the cocoa down and looked at him sternly. I felt like a mum who’s just caught little Jimmy having his first tug. “Well you need to put it away now.” I said. “You could help me.” He said in a plaintive voice “Help you how?” I asked dubiously. “I haven’t cum in months and if you did it I’m sure I would in a minute.” Not cum in months? He must know my husband as I was in the same boat. The only orgasm’s I was getting was with my dildo, when I got a free 10 minutes. I looked at him and he was looking up at me so pathetic. I have to confess he did have a pretty big cock. Bigger than my husbands, that’s for sure. So I sat beside him and took hold of his dick. It was good and hard too. He leaned back on the bad and I wanked him. Within two minutes he was shooting his seed over my hand and thanking me like I’d given him a winning lottery ticket. I have to confess I enjoyed it too. A few minutes later I was in the loo and frigging my pussy. Giving myself the best orgasm I’d had in ages. After that I wanked Jack off pretty much a couple of times a week. Each time I did it it felt so naughty and that was turning me on more than anything. However at first when I did it Jack had been a total gentleman but each time I pleasured him now, he was getting bolder. It started with him talking dirty until before I knew it I was tugging on his while he said things like “Wank it bitch.” and “You love my cock you fucking tart.”. I thought this helped to get him off and to be honest I liked the dirty talk so I let it continue. Then a few weeks ago he started grabbing my breasts. After a lot of pleading one night I got them out for him and he sucked on my nipples in a way that got me most distracted and I ended up kneeling for him so that he could stand and cum over my tits. The next night I was a very bad girl and without him asking me too, I sucked his salty old cock. He was so surprised that within a minute he had cum in my mouth. As he moaned and half shouted, “Swallow it, Swallow my cum you filthy slut.” I’ve always liked sucking cock and I do swallow when I feel like it, but this was taking it to a whole new level. Then last night I think it went too far. I popped in to see him for the first time in a week as I’d been on leave. Jack was sat on the bed naked with his cock in his hand, obviously he wanted some fun. I enter the room and closed the door and when I turned back round he was right in front of me. “On your knees bitch.” He said. "OK were in that mood tonight", I thought. I liked him being a bit dominant so I got on my knees and without even asking he forced his cock in my mouth. With one of his hands on my shoulder and the other on the back of my head, he fucked my mouth. I was finding it hard to breath and he was making me gag so I forced him to stop and sat on the bed to get my breath back. Before I knew what was happening Jack was on top of me, using his weight to push me onto the bed. He pulled open the press studs on my tunic and before I knew what was happening his hands were on my tits. Now, I wasn’t really protesting, as what he was doing felt good. Then without any warning he went further and yanked down my trousers and knickers in one rough movement. He’d never seen my pussy and he made sure he had a good look, as he said, “Mmm I love a hairy cunt.” Despite all this and all the things I’d done to Jack, I was still surprised when I felt him trying to get his cock inside me. I thought about telling him to stop, or at least be a bit more gentle. But then his cock was in my pussy. Oh my god! For the first time since I’d got married I was letting another man fuck me and it was a man old enough to be my granddad! He was whispering in my ear as he rammed his cock inside me. “You fucking love this don’t you?”, “You’ve been gagging for me to fuck you haven’t you?” and “You really are a fucking dirty slut, Tracy.” Were just some of the things he said, Now I hadn’t had a good seeing to in ages. My husband, works long hours and really hasn’t showed any interest in proper, dirty sex in ages. This was properly dirty and I was loving it. The more he called me names the more turned on I got and I found myself responding with my own dirty talk. I found myself saying, “Just fuck me you old bastard.”, “Fuck me harder you dirty old fucker and “Fuck me granddad!” After just a few minutes of this treatment I could feel my orgasm rising and then it exploded over me as I came over Jack’s cock. I yelled loud, Its a wonder I didn’t wake the whole home up. Moments later he filled my cunt with his spunk and collapsed on top of me. After cleaning myself up and tucking Jack up in bed I went back to my duties. Although I did find time to frig my pussy in the loo later at the thought of what I’d done. My only worry is I’m not on the pill. I know its unlikely but what if Jack has got me pregnant? Looks like I’ll have to fuck hubby soon just to be safe. After all another man getting me pregnant and me telling hubby it was his is what got us married in the first place. So it won’t do too much harm.