While that was happening, Charlene was careful to hold her hips still as my penis slowly shrank until it was just barely able to keep our combined juices corked inside her. As she explained to me (without being too embarrassed) "I'm not ashamed to have your stuff leaking out of me, I just don't want to make a big mess on your bed after you made me so happy. Besides, I like sitting on you like this!"
After a bit, she leaned forward and supported herself with her arms as the two of us began talking. That made it a lot easier for me to continue toying with her breasts and nipples (and earning the occasional soft moan). We also exchanged more than a few soft, affectionate kisses along the way, as well.
Between getting to play with her tits, the nature and duration of some of the kisses we shared, and the inevitable small movements of our bodies, not only didn't my cock fail to shrink down as much as it usually did after I climaxed, but it even began to respond a little bit after a while. It was over half an hour since I'd filled her with my cum before I was sure that it was starting to firm up again. Not being sure what (if anything) more Charlene wanted to do, I kept quiet about it and waited to see how she responded. I got my answer several minutes later when I realized that I could feel an increase in the number — and duration — of the faint clenches of her vagina around it. Even then, I wasn't sure if it was something she was doing deliberately, or happening for some other reason; only when I'd worked up the courage to do so did I ask "Charlene? I can feel you inside, kind of, um, squeezing me, and it, uh, feels pretty good. Are you doing that on purpose?"
With a slightly embarrassed smile, she answered "Yeah, I am. It… it felt like you were maybe getting a little bigger in me again. I've read how some women have learned to control their muscles inside, so I've been trying to see if I can do it, too. You can really feel it?"
"Yeah, I really can. And like I said, it feels good."
Her smile got even bigger before she told me "Good. As nice as you made me feel the first time, I want to find out how much better it can be when you can go longer. I mean, if you want to…", the last a trifle uncertainly.
I pretended to think about it for a couple of moments before judiciously answering "Well, if you're sure you really want to, I guess we can."
It took her a moment to realize I was teasing her; when she did, though, she gave me an impish grin before saying "I guess I'll just have to show you how serious I am, won't I?"
With that, Charlene apparently got serious about learning control of her vaginal muscles.
After several minutes had gone by, I'd have cheerfully given her a grade of "A" for the enthusiasm, dedication, and progress she showed. Without moving her body or using her hands, she ultimately succeeded in "milking" my manhood into full erection: the more progress she was able to make, the more effect she was able to have — to her visible delight.
As pleasant (!!) as it was to feel her giving my erect cock a hands-free massage, there came the point that I was ready to be more than a passive partner in our activities. When she felt me start to press myself up into her, she gradually ceased her efforts and admitted "Yeah… that feels good. That wasn't as hard to learn as I though it would be, but actually harder to DO than I expected."
"I expect you got the results you wanted", I told her, "so if you want to do something different, it's okay with me."
That drew a smile from her before she began slowly arching her hips to slightly lift herself off my erection. Despite the sudden outflow of our combined juices that began to soak into our pubic hair, she quickly expanded her efforts by raising herself higher and faster. In short order, she was steadily raising herself far enough that only the head of my cock remained inside before she let herself settle onto it again. While she was doing that, I expanded the range of my touches on her body to include first her waist and hips, then on to her thighs, and even back. Each time my hands cupped the smooth globes of her ass, I marvelled again at how firm it was as I felt it clench with her efforts. With my hands roaming her body, that meant that it was possible for me to lift my head enough to get my lips on her bust; I happily spent a few minutes getting both of her nipples glistening with my saliva as I brought them to erectness.
We continued like that for several minutes, stopping only when Charlene once again held herself still over me, panting slightly as she told me "It feels as good now as it did before — better even. But I'm not used to moving like this; can we do this some other way?"
Running my thumbs over her nipples, I answered "Sure. If you want to, you can get on your hands and knees and I'll get behind you."
When she visualized what I was talking about, I saw her areolas pucker in response before she told me
"Yeah… I'd like that."
I waited patiently for the few seconds it took for her to lift herself off me completely (releasing a minor flood of juices to dribble down my cock) and move off of me. As I sat up, she moved to her hands and knees before turning her head to look back at me. I saw her eyes lock on my glistening, swaying erection for a few moments before moving to my eyes again. She didn't even blush when she saw that I knew where she'd been looking; she just gave me a sultry gaze and said "You don't have to wait or anything — I'm ready now."
Hearing that, there was nothing for me to do but move close enough to lever my erection down and settle the head of it between the parentheses of her parted labia while I put my other hand on her waist.
Before I could do anything else, however, Charlene rocked back enough to impale herself on me.
Figuring if she was going to take that kind of an attitude, I'd just go along with her, I took hold of her waist and arched my hips forward… filling her with a single firm thrust. When I was fully embedded in her, Charlene tilted her head back and released a deep groan of pleasure as I felt her deliberately clench herself around me.
Getting a response like that from her, I eased about half my cock out of her before pressing myself back into her again — then did it again, and again, and again…
In short order, I was sliding myself back and forth through the tight ring of her entrance as Charlene pushed back with each thrust of my hips. After only a couple of minutes, I could hear as our union created a distinctly liquid sound as Charlenes womanhood got wetter and wetter with her steadily increasing arousal and desire. Leaning forward a bit, I was able to reach around and cup her breasts in my hands and start gently squeezing them and pinching her nipples. Coupled with the movement of my hard cock, the stimulation got her even wetter — enough so that I could feel faint trickles of her oils begin to trickle down my balls, where they were transferred to her bush each time my scrotum swung forward.
Even as young as I was, I couldn't maintain that position as long as I would have liked; eventually my back complained enough that I had to raise up again. I had my hands on Charlenes hips and was steadily pistoning in and out of her when I happened to look down to where we were joined, and saw that her small, thin labia were being pulled out every time I slid out of her, only to disappear again when I moved my hips forward. For some reason, I found it to be an incredibly erotic sight and greatly slowed my actions so I could watch it happen in "slow motion" several times. I'd likely have watched it a lot longer if Charlene hadn't released a slightly frustrated groan and pressed herself back at me to let me know I wasn't pleasing her as much. When I picked up the pace again, I heard Charlenes impassioned "Oh, God, yes… like that…"