Copyright 2021 Charlie Flemming
Xania
Today is Labor Day, which is why I asked Nancy if this could be the day of the appointment. Then I could use the lab and keep the rest of the doctors and nurses at my private practice in the dark about what I was up to because no one else would be there, not even the janitors.
I got there early and was surprised when Nancy and her son were there almost as soon as I was, "You're early." I said as I let them in the door and then locked it behind them, "It is Labor Day you know." I explained, when they saw me locking the door, "This is a special case and I don't want anyone coming here thinking we're open. It should be obvious but people can be really dumb sometimes and try to come in anyway."
I led them back into the examination room, Nancy took out a cooler filled with her son's samples. I took them out and started examining the semen under a microscope in chronological order by the date on the side of each cup. "Any problems with collecting the samples?" I asked Rob.
I was surprised when Nancy was the one who said, "No problems at all, we made sure to collect one per day like you instructed."
"Good, good," I said as I inserted the first slide into the microscope after preparing each slide. What I saw simply astounded me, "What the hell?"
"Is everything all right?" Nancy asked, sounding like the concerned mother she was. Too bad she was also the slut who broke up my marriage or I might have considered this a good quality she had. As it stood, I just saw it as a point I could use to manipulate her.
"Um, it's too soon to know, but I'll go through each of these and let you know," I put the next slide into the device. After I checked them all I took some notes and turned to them. "This is something interesting, it appears that Rob's semen production is only increasing, but not only that, his semen's viscosity, his testosterone, and his sexual pheromone production all seem to be on overdrive."
Nancy seemed confused, "you can tell all that just by looking at his, umm, sperm?" I was impressed with her, she only hesitated slightly before saying sperm and she didn't even blush. I suppose talking to her son about it every day has loosened her up some.
"I can't just see that, no, but I can deduce as much," I explained with all honesty. "It seems his testicles are on overdrive when it comes to producing semen. I'll have to run some tests to confirm what I mean, but I think at the very least we should get another sample right away."
Nancy nodded but didn't say anything. I glanced at her and saw that she was now staring directly at her son's crotch, a humongous bulge being there. She was waiting with anticipation, no need to have her wait any longer, "Take your clothes off Rob." I told him.
Nancy
I expected this moment when Xania would be telling my son to undress. In fact, I'd been thinking about it since I woke up that morning. Xania had jerked my son off right in front of me last time, ending with Rob cumming all over my clothes and body as I came in my panties without even touching myself. Well, that's been happening a lot lately, actually, spontaneous orgasms, I mean. I was still deeply in denial about everything at that time, especially my growing feelings for my son. But had I been more self-aware of my own sexuality and not just suppressing every sexual thought, or at least failing to suppress them, I might have realized that I had been so sexually repressed for so long that it was now coming out of me, not to mention
cumming
out of me, in weird ways.
As Rob got undressed, I simply stared at him the whole time. I was feeling as if I couldn't take my eyes off of him, actually. He was 18, and a bit scrawny, but as he disrobed all I could think was how manly he looked. My pussy was already very wet by the time he took his pants off and was positively dripping when his cock came into view. I was both unsurprised and very impressed to see that he was rock hard already. His huge cock, a monolith to manliness, and my cunt was calling out to me for attention and it was taking all my strength not to put my hand down my pants and start masturbating right then and there.
But again, I was in denial of the fact that I was having these very direct sexual feelings for my son. I saw him as a man, I saw him as a sexual being, I thought about his cock entering my throbbing pussy and fucking me basically all the time, but it was like I still knew Rob was my son, and seeing him in this way was just me thinking about how a girl his age might see him. Not how a very horny mother from years of self-denial in her sexuality was looking at her own, incredibly hung, son.
"Hmm," Xania said as she touched my son's penis without gloves on, she had done this last time too, using her bare hands so I didn't question it. She seemed concerned as she pushed his cock this way and that to see it from every conceivable angle. "It's extremely chafed," she said, "Have you been masturbating more than once per day?" She asked Rob.
Rob blinked nervously, "Uh, no, except..." He trailed off.
"Except what?" Xania asked. "It's important I know as this might be a result of your continuing condition or not."
Rob sighed, "I jerked off a lot yesterday..." He admitted as his face flushed red.
I felt my face going as hot as Rob's was, at least, as I remembered that yesterday was also the day I got naked in front of my son and not only let him cum all over my face and body but swallowed a great deal of it right in front of him. I was, basically, rationalizing this as not getting enough sleep yesterday, but Rob admitting that he had to jerk off even more after I did that, well, it turned me on. My sex drive was pushing all my doubts out of the way again at that moment, just as it had done yesterday when I did what I did for my son.
"Why? Did something happen yesterday?" Xania asked, glancing between Rob and me. I wonder if she knew somehow as she looked my way, but neither Rob nor I said anything.
"Well," Xania said, moving on after our awkward silence, "This is an interesting development, I would say that Rob shouldn't be so rough, especially if we're going to be doubling how many semen samples we get per day." She began slowly jerking Rob's huge cock with both of her soft hands, and this distracted me for a moment as I watched in horny fascination as Xania's words caught up to my brain.
"Wait, what?!" I said, shocked. I had come in there hoping that we could stop Rob's semen collection after that, but now she's telling me we're going to have to start doing it more!!?? I felt myself getting weak in the knees at the thought so it was a good thing I was already sitting down.
"Yes, and try to do them about 12 hours apart if you can for more accurate measurements. But don't worry if you're off by a couple of hours." She explained, she was still stroking my son's cock but very slowly, "also, do you see at the speed I'm stimulating your son? I think that this is the appropriate speed to do so. I think he should be carefully observed during these sessions to make sure he maintains this 'slow stroking' speed."
My mind was doing flips, "what do you mean by that?"
"I mean," Xania explained, "I want you to watch him at every session to make sure he doesn't chafe, as that can cause long-term problems really quickly if not properly treated. He can take preventative measures by slowly stroking himself in this manner." She jerked all the way to the top of his cock and smeared a bunch of the pre-cum coming out of my son's cockhead into her hands and down his shaft, making it glisten obscenely in the clear fluid. She was on her knees in front of him and her face was only inches away.
I was too horny. My body was hot. My pussy felt like it was about to explode, and maybe it was in yet another random orgasm without me even touching myself. This seemed unreal. I had been spending most of this past week trying
not
to think about, let alone
see