to the point that I could feel it lightly pressing against Emma's cute little ass. It wasn't much longer that I felt her start moving: in slow, short movements at first as she rubbed herself against my growing manhood, then in longer motions as the added stimulation helped me get even longer and harder as she undoubtedly meant to happen.
I could feel it as Emma's small nipples grew harder against my chest; along with that, I noticed that there wasn't as much friction where she was rubbing herself along my length. The unique scent of her arousal told me that she was wet enough that some of her oils were being spread along the section of my hard cock that she was rubbing herself against. I wasn't surprised when she finally eased her body away from mine: the look on her face told me that she was more than happy to have the opportunity to get herself impaled on my hard dick. When she raised herself up, I put my hands on her waist and she let me hold her in the position long enough for me to bring her areolas and nipples to hard points before she reached between us and got my shaft angled to her satisfaction; a moment more, and she had the tight, wet ring of her opening securely wedged against the head of my cock. Looking into my eyes, she started lowering herself onto me; as wet as she was, it took her only a few times of letting herself settle onto me before both of us could feel her warm ass come to rest on my legs. The look of delight on her face when it happened was priceless.
It apparently took only a few seconds for her to get used to having me filling her tight sheath again, because that was all that passed before she slowly raised herself up for about half the length of my dick before lowering herself onto it again with a soft sigh of pleasure. I got my hands on the small mounds of her breasts and began gently squeezing them and giving them and her dark nipples an assortment of soft caresses as she started moving herself on me. Beginning with slow, languorous movements at first, she was clearly savoring the sensation of having my cock moving inside her; but as her desire grew, she gradually gave herself over to it by moving herself more and more quickly in her self-impalements while I continued to enjoy (and tease) her lovely young mammaries.
After what had happened the previous night, and the blowjob she'd given me earlier, all I had to concern myself with was enjoying the sensation of her hot, wet, and deliciously tight vagina sliding up and down my shaft while I occupied myself with molesting her firm, warm breasts.
As young and fit as she was, I already knew that she had more energy and stamina that I did-but I was still impressed and surprised (and envious!) at how long she was able to steadily bounce herself up and down on my erection before she began to show any sign of getting tired. I waited to see if she was going to say anything herself before I finally put my hands on her hips and got her to stop so I could suggest 'How about if you let me take over now?'
She nodded her head, and I pulled her into my arms and moved to kneel on the floor before turning around and setting her on the couch, delighting her that we didn't have to uncouple. On the couch, she leaned back and looked down to where we were joined as I eased myself out of her until only the head of my cock was in her before arching my hips forward to bury myself in her again. After a few more progressively faster cycles like that, she softly told me 'I never thought it would look that sexy… and getting to see it while I can feel it at the same time… god, it makes me feel so hot!'
I knew that last part was true, since I could feel her getting even wetter around me as I continued to slide myself in and out of her tight sheath while she watched. I looked down, too, and found the sight to be almost as entrancing as she did: with each out stroke, her labia were pulled out as though they were trying to hold me inside her; when I pushed myself back in, they disappeared back in to guide me the way to the promised land.
With Emma sitting on the couch and me kneeling on the floor with her legs wrapped around my waist, it proved to be a lot easier for the two of us to kiss and touch each other as I steadily pistoned my shaft in and out of her-and we did. A lot. Along the way, I learned a few things: that having her sucking on my nipples felt strangely good; that softly nibbling on one of her earlobes resulted in some rather stimulating involuntary contractions in her vagina; that our tongues were evenly matched when it came to dueling in each other's mouths, and more. Most significantly, I found out that Emma was quite willing to have me move in her even faster and harder than I'd thought she'd be when she used her heels to try and pull me into her harder than I'd meant to. It took only a little experimentation on my part to find a level of 'enthusiasm' that satisfied her while still remaining somewhat short of how I'd fuck a mature woman.
The increased force of my thrusts into her resulted in a dramatic increase in her arousal. Dramatic enough that it wasn't long until I could tell that she was approaching an orgasm, much to my surprise. Since she'd said she wanted me to be able to fuck her longer, I just kept going with what I was doing; sure enough, I didn't have to plunder her treasure but for a few minutes more before she suddenly froze in front of me as her feet and legs held me deep inside her. The way the two of us were positioned, I could easily watch as spasms of pleasure coursed through her in time with the clenching of her already-tight vagina around the entire length of my hard cock. It was an incredible sensation, but I was still too far from being ready to climax for it to do more that start me down the path toward another climax while enjoying it tremendously. As the waves of release began to fade from her, I was able to start moving again in slow, short motions that became longer and faster as quickly as she let them. I was steadily cycling myself in and out of her when she opened her eyes and absently observed 'God, that was good' before looking to where my erection was moving in her, watching for several seconds, then closing her eyes and softly moaning.
I continued fucking myself into her while toying with her firm mammaries, exchanging kisses with her, and generally enjoying the hell out of the situation and what we were doing. After just a few minutes, I felt a brief tightening of her sheath; over the course of the next several minutes, it happened again and again-each time, it was marginally stronger and lasted a trifle longer, and happened a bit sooner. I had no doubt that she was building up to what I figured was going to be one Hell of an orgasm, which was fine with me: every time I felt her young pussy clench around me, it moved me closer to my own release.
Several more minutes had passed when Emma's already tight pussy clamped down on me even harder than it had before at the same time that her body came off the back of the couch with the power of the spasm that overtook her. She got tight enough around me that I didn't dare try to move, which meant that my cock was subjected to the incredible sensation as her vaginal muscles began a rhythmic spasming that ran from where her entrance was threatening to pinch my dick off to the head that was lightly pressed against the deepest part of her. I'd felt the sensation before when women I was with had an orgasm, but what I'd experienced with them was only a hint of a promise compared to what Emma's womanhood was doing to me. My own climax was close enough that it took only a couple of cycles of Em's pussy milking my cock for me to begin emptying myself in her in a series of spurts that left me feeling much as I had when I'd had my first climax.
It was no surprise to me that I finished before Emma did; kneeling between her parted thighs, I'd recovered enough that I was watching her when she opened her eyes after the last couple of waves of her orgasm had faded. It seemed to take several seconds before she realized where she was and what had happened; but when she did, she latched onto me and pulled me into a hug that had me seriously concerned about a broken rib as she started crying into my chest and blubbered 'Oh, thank you, Uncle Dave! That was so much better than anything I've ever felt before! The first one was really good, but it wasn't anything compared to that!'
As nice as it felt to have her naked young body pressed against mine, I wasn't comfortable with the fact that she was crying-even though I had figured out that they were tears of happiness. I put my arms around her and softly stroked her back while I tried to reassure her that everything was fine, I was glad she liked it, and so on. The waterworks had pretty much ended and she was just starting into the sniffling and snuffling phase when I felt my dick slip out of her; it took only a couple of moments for me to shift around so I could get one of my arms behind her knees so I could hold her as I stood up. She looked up at me in delight before letting her head rest on my shoulder as I got the two of us back to my bedroom and then on into my bathroom. When I set her on her feet, she continued to hold onto my side as I got the shower going. Once it was ready, she let me lead us in, then held still as I tenderly washed her before cleaning myself up.
After both of us were dried off, it was onto the bed for us. Laying on her side, Emma snuggled herself as close to me as she could manage before draping an arm and leg across me and resting her head on my shoulder. I got my arm around her and rested my hand on the curve of her waist and gave her a gentle hug before she sighed happily and told me 'Really, Uncle Dave… I never even dreamed that an orgasm could be anything like what happened that last time. All the other ones I've had, they've been good and made me happy and everything-but they weren't anything like that one! Now I'm even more glad that I was with you my first time. Last night, you did everything I wanted you to and made me feel so good; and now today you did it again… not just giving me that wonderful orgasm, but everything after that, too. And now, the way you're holding me… I know you love me as much as I love