I finally tried to tell her what was going on, but she adamantly told me "I don't care if I have another orgasm! Just keep fucking me!"
So I did. I still tried to make it as good and enjoyable for her as I could; I just quit worrying about it if she didn't cum again when (or before) I did.
Karen had developed a distinct blush on her face and upper shoulders when I felt myself reach that point where I knew it was going to happen — and not much longer, either. Karen was willing to let me slow down a little bit when it meant that I was able to take longer strokes in and out of her; by lying to myself outrageously, I was able to pretend that the increasing sensations I was feeling from the head of my cock weren't as intense as they were; but there was no way of denying the incredible pleasure of feeling myself moving in her any longer.
Somehow, I managed not to slam myself into her as I buried my manhood in her tight sheath just ahead of the first powerful spray of cum erupting from the end of my cock; I heard Karen cry out underneath me, and then the indescribable sensation of her fourteen-year-old vagina clasping at me as I continued to try and fill her with my jism. The feeling of her tight young pussy clenching around me only lasted about half the time my climax did — but the brevity of it didn't diminish the pleasure in the slightest. I was panting as I lowered my body, supporting myself over her on my elbows as I tried to get my wits back together after what I'd just experienced.
I had finally gotten to the point that I could breathe through my nose when Karen wrapped her arms around me, and hugged me as she rained a number of kisses on my face, before telling me
"Oh, Uncle Ted, that was so wonderful! I could feel it when you started squirting in me, and it made me have a little bit of an orgasm, knowing that you were doing it! And you're still big, and inside me, and it feels so good…"
After she'd lowered her head to the pillow again, and we'd exchanged several small, brief kisses, I told her "I'll be glad to stay like this as long as I can, honey."
She crinkled her nose at me before saying "I know- when you're not hard any more, you'll slide out. Then we'll have to do something so your juice doesn't leak out of me and make the bed wet.
But until then, I like having you over me like this."
I gave her another quick kiss, and answered "And I like being over you, so that works pretty good." — and getting a happy smile from her.
As tight as she'd been, I would have thought that it wouldn't take as long as it did for my penis to finally shrink enough to slip out of her; I can only figure that the semi-regular twitches I felt inside her were slowing the process… not that I'm complaining, mind you!
When I knew it wouldn't be much longer, I told her "Karen, honey, I think we'll want to take a quick shower before we go to bed; but before then, I just want to know if you want to clean up with me — and if you do, whether or not you need or want any time alone in the bathroom first."
Delighted at the prospect of rinsing ourselves off together, she told me "No, I don't need to do that. Even though it felt like you put, like, a gallon of your stuff in me, I think it'll just drain out of me while we clean up. But thank you for asking, even if it did make you a little embarrassed!"
I was considerably surprised by her calm acceptance of the idea of getting my cum out, and that she wasn't embarrassed by the idea of letting it happen in front of me. Teresa must have done one hell of a job of explaining things to her and her sisters, since other women that I'd been with would have had conniptions at the very idea of letting me see them dealing with getting my cum out, never mind letting it actually happen. I smiled, and kissed her again, and as I shifted my weight slightly, felt my cock slip free of her intimate embrace. Without saying a word, and before she could move, I slipped out of bed and stood up; I was able to slide her over to the edge, then pick her up and carry her into the bathroom, where I set her feet on the floor of the shower.
Keeping my hand over the shower head, I got the water turned on and adjusted; when it was hot enough, I got into the shower with her, where the two of us had a pleasant time cleaning each other off. She didn't have any qualms about squatting down slightly and using a finger to wash my semen out; the sight was damn near enough to start getting me hard again before she was satisfied with her efforts.
Once we were back in bed, the feel of her cute ass tucked into my "lap" as we spooned did succeed in getting my cock almost completely erect again. Karen just looked over her shoulder at me, smiled, and calmly lifted one leg far enough for her to reach back and get my manhood repositioned between her smooth thighs and against her mons before lowering her leg — leaving me "trapped" in a way that I found quite satisfactory.
As we lay there, she told me "Thanks, Uncle Ted. I wanted to stop being a virgin, and find out what it was like to make love with someone, and you made it SO much better thank I even thought it could be. I was still a little bit scared, but you were so nice and patient and everything.
I knew I could trust you, and that you'd make it as easy as it could be… and you did it even better than I hoped. I would have been okay with it if it just didn't hurt too much, but you made it feel good, even. I just want you to know that I know how lucky I am to have someone that loves me and cares for me enough to do everything that you did for me tonight. I know you liked it, too, and all that — but I know that you were thinking about ME more than yourself; and I want you to know that I appreciate that, too."
I gave her a gentle hug, then said "Thank you, sweetheart. It means a lot to me, hearing that I've made you happy."
She wriggled herself against me before releasing a contented sigh, then gave my hand a gentle squeeze where it was cupping her breast.
As I woke up the next morning, I discovered that I was flat on my back — and that something warm and wet was encasing over half my erect cock. On opening my eyes and looking down, I saw that Karen had her mouth full of my manhood while one hand was busy between her slightly-parted thighs. When she saw that I was awake, she smiled (as best she could) at me around my erection, then unashamedly spread her legs wide so I could see that she was see-sawing one finger in and out of her vagina between bouts of using the tip of that finger to administer to her erect clitoris. It was, without a doubt, the best way to wake up that I've ever had the pleasure of experiencing.
Still, the Engineer part of me simply had to ask "And just what do you think you're doing, young lady? Aside from the obvious?"
Reluctantly pulling her mouth from around my cock, she looked at me and patiently told me "I'm getting you hard, of course. After I woke up, I remembered how good you made me feel last night, and I want to see if it's even better now that I know what it's like…"
"You're okay? Not sore inside, or anything?", I asked. As tight as she'd been, I really didn't figure that she'd be ready to have me inside her again any time soon.
"Oh, a little bit… but not enough to make me not want to do it again, if that's what you're asking."
Well, if I hadn't woken up, she'd have done what she was going to, anyway, so I didn't see that there was anything for me to say — other than "How about if you let me help YOU get ready, too?"