The next six months passed without any more incidents. The sex with Allie was great as usual. She still wanted it all the time and I felt like the luckiest guy in the world. I had a girlfriend that would mess around with other guys because it turned me on, but that I trusted not to cheat on me if I told her I wasn't into anything happening on a particular night. What a girl! It was about this time that I had a wedding to attend in Indonesia. Now this wasn't a wedding in the tourist mecca that is Bali, this was in Sumatra, a year after the tsunami. I had no idea what to expect from this trip. I invited Allie along but work commitments didn't permit her to come along. So it came about that I would be out of the country for five weeks leaving my cock hungry girlfriend at the mercy of her friends and all the random guys they knew. I wasn't sure how I felt about that. After making the arrangements for the trip it became clear that I would have almost no contact with Allie for the whole five weeks. The city we we'd be based in had very unreliable telephone and electrical services. My cellphone wouldn't work over there and no a lot of places we could go had internet access. I was effectively going to be missing in action for five weeks. Allie was going to be a single girl again. I thought long and hard about what to say to her before I left. Frequently our sex sessions had involved fantasies of her fucking other guys, or her recounting stories of the men she had slept with before she met me. She even confessed to me something I had already suspected. During the first few weeks when we were together she'd actually been dating another guy from the internet. They'd been semi serious for six months and I thought she'd broken it off with him a week after we had been together. "Did you fuck him after you met me? I asked, I had to know. "Don't be mad, I was going to break up with him and we were in my room." "So you fucked him?" "He started kissing me and I didn't know what to do. Do you really want to hear about this?" She said, she actually seemed upset. "Just tell me. I've got to know now, I can't go away wondering" "Ok if you're sure. After we met, I think it was two weeks after, I knew it was over with Matt, but he just turned up at my house one night quite late. I think it was around 10pm. My roommates let him in and he just came into my bedroom. I meant to break up with him then but I didn't know what to say. He'd had a few drinks I think because he was very aggressive. He pushed me back on the bed and started kissing me. Are you still ok with this?" "I guess so, it's turning me on a hell of a lot" She laughed and grabbed my cock through my pants "It sure is, you're so weird" "Anyway, he was on top of me and I was only wearing my pyjamas, I hardly had a chance to notice and he'd had pulled the bottom half off. He went down on me really fast and he was always really good at eating my pussy. So at this point I decided to stop fighting it. I'd fucked him lots of times before so one more time wouldn't really matter. He ate me out for about five minutes and then I came really hard on his face. I think it's because I felt so naughty. I was holding his head and grinding my pussy into his face. I must've been so loud." "I bet you were" I said, I had to lean over and kiss her at this point. My cock was so hard I also had to get it out of my pants. She kissed me back and gave me some very naughty tongue action, then went down to my lap and gave my cock a quick kiss and suck. She always loved to lick the precum of the head. Apparently it was terrible to "waste" it! "After that I climbed on top of him" she continued. "I always rode him, kinda like I do it a lot for you now! At first I leaned forward and kissed him as he thrust his cock up into me". "Was he bigger than me?" I asked, even though I wasn't sure I wanted to know. "A little bit longer and thicker. For some reason I've always ended up with the guys with big cocks. Well almost always" she said with a laugh and a nod towards my average six (and a half!) inch member. "Oh shut it" I said. It was something I knew about her, and her friends had told me about it too. Allie had a thing for big cocks. I was constantly surprised that I could keep her happy with my average tool. She always said the big guys like to pick her out because she's so small. But whatever the reason she'd had a few big ones in her time, so she was quite frank with her appraisal. She'd often said to me that my cock was perfect for her because I could slam her hard in most positions and it didn't hurt. I'm not really sure if this is really a great compliment or not! "After a while I sat back on his cock and rode it like I was riding a horse. I bounced up and down and then looked him in the eye as I held my shoulders and head still and lifted my pussy up until only the head of his cock was in me. I sank back down onto it and started moving my hips in the opposite direction, instead of grinding forwards I was grinding backwards. He used to love that. After about 15 minutes of this I decided to give him a show since this was our last night. I hope you're not mad. I turned around on top of him and with my ass facing him bounced up and down on his fat cock. Fuck it felt so naughty." Now I've had her reverse cowgirl me many times and she is an absolute expert at it. Forget every bit of porn you'll ever watch, Allie will grind on a cock like no one else. She does it all, and in fact she told me about it. "So I started off kneeling over him and fucking him, I made sure I had my chest down on his legs and my ass up as high as possible. I wanted this to be something he'd remember. I had to cum, so I was rubbing my clit so hard when I was on him like this. His cock felt so big. I changed position slightly and got up onto my feet so I was squatting over his cock. I slid back down on him and resumed touching my clit, but after a while I knew I didn't need too. Maybe five minuted later with an orgasm coming I went back down onto my knees and worked his cock hard into me. At one point I looked back and told him how good it was, honey, he had his phone out and was videoing me on top of him. I just didn't care. I moaned and came hard on his cock. I could feel my pussy milking him and pulsing so hard. But he still didn't come. I rolled off his exhausted and he pushed me onto my stomach, spread my legs and fed his cock into my used pussy. I just let him do whatever he wanted. After fucking me like that for a while he pulled me up onto all fours and fuck me doggie style. He even had one finger in my ass for a while while he fucked me. Eventually after slamming me so fucking hard for about five more minutes he grabbed my hips and blew a huge load of cum into my pussy. He pulled his cock out and it just ran down my legs." "Fuck" I said, "You just let him do it all to you" "It was our last night together, like a leaving present" she said with a wink. "I can give you a going away present too if you like . . ." "Ok ok we're fine, but you have to fuck me now" What ensued was an amazing night of sex. She used my fantasy in every way she could think of. "Please fuck me like Matt did" she'd say. "Can you get it in deeper?" About an hour into it she whispered in my ear "By the way, I fucked him twice that night, and once in the morning before he left" I came immediately. A few days later I left for Indonesia. Allie was staying at my place to look after it while I was gone. We had a bit of an understanding that while I was away she could mess around a little if the chance arose, but she wasn't to go too far. I really wasn't so sure she could control herself when she got worked up, but my other option was telling my sex made girlfriend that she couldn't have sex at all for five weeks. And I knew that would be almost impossible. I was going to have to suffer through over a month away from Allie, with almost no contact. Who knows what could happen?