I got the two of them lying side by side with their legs up just a little bit. Just as I had with Frank I lubed up a finger and worked it around and finally into Johns' ass. As he got used to one and then two fingers, I could hear his breathing change and he was soon moaning slightly as I worked my fingers in and out. I hadn't stopped sucking on Frank while I loosened up John, but I switched over to John's hardon and started sucking on him and at the same time eased the smaller vibe into his butt. He was certainly tighter than Frank, but I soon had it in all the way. As I fucked their asses at the same time, I kept switching back and forth between the two cocks. "This feels fantastic," moaned John.
"Hey," said Frank, "why not see if you can get Linda to do your ass while she goes down on you sometime - if she sees that you like it then maybe she'll let you try her ass!"
I could tell that John liked that idea from both the moan and the way his cock jumped in my mouth at the thought of it. I moved my mouth back to Frank and after a minute or so, I felt his balls tighten up - a sure sign he was about to cum. Whenever I gave Frank a blowjob, I never went all the way with it, not being sure how I'd like the feel/taste of him cuming in my mouth. I must have been hornier than usual because instead of pulling back like I always did, I started sucking harder. The first spurt caught me a bit by surprise, but I managed to hold it and the remaining ones in without choking. I can't quite explain the feeling or the taste, but it wasn't as bad as I thought it might be. I remembered something I'd read in one of those sex story mags once that had appealed to me, so I pulled the vibrators out of their asses, moved back around and kissed Frank with a mouthful of cum, letting some of it slip from my mouth to his. I wasn't sure what his reaction would be, but I knew it didn't bother him when I felt his tongue part my lips and let a bit more slip into his mouth.
I fully expected Frank to be out of commission for a few minutes, so I was quite surprised - pleasantly so - when he pulled me the rest of the way up onto him and slid his still hard cock into me. It felt great as it slid in, he wasn't as big as John, but we'd been together long enough that he knew how I liked it. I didn't want to make John feel left out so I handed him the lube and asked him to lube me up the same way I had lubed him. I certainly didn't have to ask twice as he took the lube and was soon teasing my ass with a well lubed finger. It felt so good to have Frank in my pussy and a finger up my butt at the same time. As I got used to one finger - which didn't take too long - John started working two into me. That felt even better, but I wanted the real thing and John was more than happy to oblige. I felt empty when his fingers pulled out, but it wasn't too long before I could feel the slippery head of his shaft against my backdoor. I quickly remembered that he was bigger than Frank and wondered if this was going to work, but even as I thought about it I could feel my ass stretching to accomodate him. Thankfully he took it very slowly, easing it in and out, going just a little bit further each time. Finally I could feel his hips right up against my ass and I knew it was all the way in. Now the two of them started working together and it went much smoother than it had the previous night. I love the feeling of being 'full' and this was certainly as full as I'd ever been. Having cum just a bit ago, I knew Frank would be good for a while, but I wasn't sure how long John would be able to last. I was getting close myself, so I reached one hand down to play with myself. I was quite wet, and my clit was very swollen. I began by just teasing my clit with my finger, but when I felt my orgasm starting to build, I went faster and faster. When I came, the feeling was incredible! I could feel both my ass and pussy clench down on the cocks in them and then go into spasms. Those spasms were all it took for John as he thrust deep into my ass and even as I heard him moan I could feel his cock pulse as he came in my ass. I'd thought Frank would last longer than he did, but I guess I wasn't the only one that was hotter than usual. Frank had sped up his thrusts until we were almost bouncing off each other. I'm not sure how John managed to stay with us, but he did, and was just starting to soften in my ass when I felt Franks whole body stiffen as he came in me. All three of collapsed like puppets with their strings cut and lay there in a sweaty but very satisfied heap for a few minutes until we regained enough control to roll apart. I woke up at one point in the night to find John curled up against my back with a hand cupping my breast, and Frank curled up against me with my hand just grazing his crotch, then drifted back off to sleep with a very contented smile on my face.
The next morning, there wasn't any of the tension that there had been after the first night. All of us were quite relaxed with what had happened. I didn't know if it would happen again or not, but if it didn't at least I'd have enough memories of the weekend to keep my fantasies going for a long time.
As with all other good things, the weekend had to come to an end and we had to start packing the next morning to get back home. As we packed, John asked us if we had any suggestions as to how he could get Linda to try anal sex or maybe even try two guys.
"I don't know," I told him, "why not try writing down what happened this weekend and leaving it somewhere where she'll find it and read it? Who knows, the next time we go camping we might need a tent for four!"