Introduction:
A big thanks to everyone who has sent in feedback so far, which is always welcome.
*
The next two days, which were a Thursday and Friday, followed a very similar routine to the first day of mom helping measuring my cum.
Mom would take one specimen first thing when I got home, coming into my bathroom after I showered, whilst I stood naked in the bath. The other two times each evening, she would wank me off into the semen beaker whilst I lay on my bed.
Mom would take her bra off during our ‘sessions’ in the bathroom. Even better, she had also got into the habit of removing it and showing me her boobs whilst she wanked me off on the bed. I had requested this during one of our earlier sessions on the bed, although we hadn’t started off that way, and she seemed to be happy to continue with that extra bit of stimulation for me. It was incredibly exciting for me, watching her boobs jiggle and wobble whilst she wanked me off. She would let me touch them lightly, but only for a moment or two, until I became rock hard and virtually ready to cum straight away.
Just a few other things worth mentioning about our sessions, as the week had gone on.
Firstly, when mom came in to wank me off in the bathroom, she would always insist on ‘making sure I was clean’, as she would put it, even though she knew I would only call her in after I’d soaped and rinsed myself all over. She would rinse my dick and balls, taking the showerhead in one hand and spraying warm water over me whilst she stroked my cock, which would be hard or semi-hard by then, and then move on to my balls. After that, she would ask me to turn around so she could rinse my butt. Now, I don’t know for sure why she asked me to do that, because she didn’t need to do it for wanking me off, but I would comply, and she would always rub my buttocks up and down well, getting a good feel of them. I was sure she was doing that on purpose, because she enjoyed it, but I never said anything. It kind of turned me on to know she might be getting some pleasure out of it, if my suspicions were correct.
Secondly, when she would wank me off on the bed, although she always wore panties which were large enough to cover her pussy well, she would push the fabric at the back of those into her butt crack, so as to expose more of the flesh of her ass cheeks. Again, I used to find this extremely arousing. It got me thinking that, as she was doing this anyway, perhaps I could suggest she wear something like a thong, or g-string which would have the same visual effect, in a better way, but I hadn’t felt confident enough to say that so far. In any case, I didn’t know if she owned anything like that, or had worn such an item, even for when dad had been around.
Another thing was that, as the week had gone on, she seemed to have become much more relaxed about the whole thing. Originally, when Dr. Taylor had suggested mom help me get samples of my semen for accuracy in collection, she had been a bit twitchy and reluctant. But as each day went by, she became a bit more easy going with me. And not just about doing that, but also in our day-to-day conversations and how she behaved at home. She had become a bit less moody and temperamental. Also, she seemed to be wearing a bit more make-up around the house, and her hair seemed better kept, which I’d never noticed before.
She seemed to be changing. Maybe it was just a co-incidence and nothing to do with our cum measuring sessions. Or maybe it was.
As mom’s mood improved, I had also kept on thinking about how I might be able to push things a bit more in our sessions. I had become much less self-conscious about my body and being nude in front of her, and her seeing my erect dick. I desperately wanted to suck on her nipples and tits and kiss that wonderful backside of her’s. But I just couldn’t hink of a way to suggest that. And I didn’t want to push things too far, too quickly, just in case it all went wrong.
Although I had an inkling that mom might be getting some kind of secret sexual gratification out of our sessions, I couldn’t be sure, and didn’t want to ruin things in case she got angry with me, and stopped the whole thing. So I decided not to push it. I was still enjoying our sessions anyway. After all, how many son’s get the chance to actually see their mom semi nude, topless, wearing only panties, and feel up her tits and ass whilst she wanked them off! I should be grateful for what I was getting!
It still bothered me, though, why I had the ache in my balls everyday, until I had cum several times, and only then felt normal by the end of the day. I guess Dr Taylor would let us know after she had all the results. Mom had been keeping a daily note of how much cum I had been producing, noting down the measurements from the lines on the sides of the semen beaker, after each of our sessions. From what I remembered, Dr Taylor had said she would let us know the results of the blood tests early next week.
During our last session on Friday evening, after I had cum, but before saying goodnight mom said “We’ll have more time over the weekend,” kissed me on the cheek as she normally did, and went off to bed. As I drifted off to sleep, I kept on thinking what she had meant by that. Time would only tell!
—————————————
As I awoke next morning, sleepily, I looked at the lock radio on the bedside cabinet. It was 8.00 am. Feeling my semi hard-on, I realised mom hadn’t come in like she had been doing the last few mornings. Then I remembered it was Saturday. She must be having a lie in, like she normally did on weekends.
I turned over, nuzzled my face into the pillows, pulled my duvet up so it covered my face and curled back into the warmth and comfort of my bed. It was the best part of waking up on weekend mornings, nuzzling back into bed after just waking up.
I think I must have drifted off to another gentle sleep for a while. The next thing I knew, something was touching my arm and I heard my name.
“Jacob, come on sleepy head.”
I turned, opened my eyes and saw mom standing over me in her dressing gown and holding a mug in one hand.
“Morning, young man,” she said with a smile.
“Morning, mom,” I replied, smiling back.
“I’ve bought you some tea. As it’s the weekend, I thought we could do our first session in the bathroom whilst you shower.”
“Ok, mom” I replied. “Thanks for the tea” I added, sitting up and taking it from her hand. It had been ages since she had bought me tea in bed. Maybe this was sign of a good day to come.
She sat down on the bed next to me. “I’m going shopping after breakfast, so I’ll be out until about mid afternoon. What are you doing today?”
I hadn’t got anything planned so I said “Not much. I might go out later and meet up a few friends, but that won’t be till late afternoon, if I manage to get hold of someone on the phone. Why?”
“Oh, I just wanted to plan our sessions for today,” she said, looking at me hard in the eyes. “As I’ve got a bit more time over the weekend, it just makes it easier time-wise.”
Like last night, I wasn’t quite sure what she meant by that, but my dick was stirring under the duvet.
“And I just wanted to have a talk with you about how you were feeling now, and if your condition has improved any? Be honest with me now.”
“Well,” I said hesitating a little, “I still have these aches..er.. you know…in my ba…I mean testicles,” I said.
“It’s ok, you can call them your balls,” said mom, picking up on my stammer. “I don’t mind if you use normal slang words for our body parts — I did mention that to you before,” said mom reassuringly.
My dick stirred again.
“In my balls I mean,” I said, going along with her.
“And do you still feel better after cuming several times by the end of the day?”
“Yes,” I replied.
“Well, let’s see what news Dr Taylor will give us this week. You know she is going to let us have your blood tests results on Monday or Tuesday, don’t you?”
“Yes, mom,” I said. “I remembered this morning about that.”
“Good,” she replied. “Lets see if we can get some more samples this weekend then, and make you feel a little better,” she added, with a slight look of concern, but smiling reassuringly too. “I’m sorry I had a go at you earlier in the week about not believing you.”
“That’s ok mom,” I replied, a little surprised and touched by her sudden apology.
“Call me when you are in the shower. I just need to do something downstairs in the meantime.”
“Ok, mom” I said. “Thanks.”
Mom got up and left the room. I couldn’t help watching her ass sway under her dressing gown as she walked away.
I sipped on my tea for a while and thought about what mom had said. She seemed quite concerned and keen to help me. It was nice to see her like that. Being the way she was normally — which was quite temperamental and moody, and not expressing much love to me, it kind of mellowed my heart a bit to see her apparent warmth and concern. Her mood certainly had improved during the course of the week.
I did have a problem of sorts, and I hoped the doctor would let us know if there was anything to be really concerned about, or whether this was just one of those ‘growing up phases around puberty’ that she had mentioned it might be. But also, out of all this, I was getting some real sexual turn on and relief. Ok, so my balls ached a bit at times and I needed to spurt out a lot of cum, but, hey, I was really enjoying doing it by the way mom was helping me!
My dick stirred again. I wondered for a moment what mom had really meant about ‘having more time’ over the weekend. I looked over at the clock. It was 9.30 am. I decided to shower. I was dying to see mom’s body again.
I gave myself an extra good clean all over and then shouted down to mom.
My dick was already a little hard thinking about what was to come. By now, I was much more comfortable about her seeing me nude as well as my hard on in all its glory, so I just stood there, wiping my face with the towel and rubbing my hair dry. I knew there was no point in drying the rest of my body, as mom seemed to insist on rinsing my cock and butt whenever we had a session in the bathroom.
I heard her come up the stairs and walk into my bedroom towards the en-suite bathroom.
She knocked on the door like she normally did.
“Ok, hon?” she said, from the other side of the bathroom door, which was only a few inches ajar.
“Yea, come in mom,” I said, in a happy tone.
Mom came in. She was still wearing her dressing gown, which was one of those made of towelling fabric, with a belt tied by a knot in the middle. She was holding the semen-measuring beaker in one hand as usual.
She looked at me, and then down at my dick, which was semi hard as usual at this time in the proceedings.
She licked her lips again. She had done this a few times, and I was certain she was not aware she was doing it.
“As I mentioned earlier, ” she said looking at me, “I’ve got more time over the weekend, and as I haven’t showered yet, I thought we could kill two birds with one stone, so to speak, if I joined you in the shower. I can take your sample and shower off as well. And we’ll save a bit on the hot water.”
I stood in silence looking at her, trying to take in what she had just said.
Then, she undid her robe, pulling on the belt so it untied and fell loose, pulled it off over her shoulders, and let it fall to the floor. It was only when it had dropped down fully, that I saw she was completely nude, as my eyes dropped to her crotch area and saw the hairs on her pussy. Fuck!
I blushed, like I never had before. A deep red streak must have shot along my neck and cheeks.
Mom had not looked at me whilst she took off her robe, and in a ‘matter of fact’ way she said, “You’ve seen me half naked anyway over the past few days, so I guess, it doesn’t really matter if you see me completely nude. Naturists do it all the time. Move along a bit.”
She waved her forefinger at me to move towards the tap end of the bath. As I did so, she held the semen beaker in one hand, and with her large hanging tits rolling freely from side to side, she lifted one leg up and over into the bath, followed by the other, and stood in front of me in the bath, completely naked.
As you might imagine, by now my dick was raging up. I looked at mom’s wonderful boobs momentarily, and then my eyes automatically went down to her pubes again. I could see a neatly trimmed patch of hairs covering her pussy!
She saw my straining cock and said, “Well, at least you are well and truly ready for your morning session.”
I gulped.
All this had left me truly speechless so far, but trying to compose myself, I said, in a hesitating, high-pitched voice after clearing my throat a little, “Yea, mom, I think I’m ready.” It was all I could think of!
“Grab the showerhead for me will you,” she said. I turned around and pulled the detachable showerhead off the wall bracket, switched the water on, and turned back around, handing it to mom as I faced her.
My dick was sticking out rock hard in front of me. I was dying to cum.
“Let me give you a quick rinse,” she said. And with that, she sprayed the water over my straining prick, running her free hand along the shaft, and then moved down to my balls, cupping and feeling them as she did so.
“Turn around,” she said.
I did a quick u-turn and faced the tap end wall.
I felt her spray my back and then my buttocks.
“Hand me the shower gel will you dear,” she said. I’d never heard her ask for that before, as she would normally only rinse me off, but I picked up the bottle and moved my hand backwards, passing it to her without turning around.
Momentarily, I heard her let the showerhead fall down into the bath with the spray still coming out, and then she said, “I do like you to be especially clean all over, so I’m just going to rub some of this shower gel along your butt crack towards your balls. Bend forward for me a little.”
I couldn’t believe my ears! I turned my head to one side as if to turn around and mom said, “Don’t worry, I’ll be gentle. It’s not as if I haven’t done this before young man. Who cleaned your butt crack when you were much younger?”
Jesus, I couldn’t quite believe what mom had just said, but I complied with her instructions.
I felt her run a finger along my ass-crack, making me flinch a little as she ran over my asshole and then touch my balls, rubbing some shower gel along there.
Then, I felt her rub my buttocks up and down, giving them a good feel.
Finally, she grabbed the showerhead again, spraying my butt and up between my ass cheeks, rinsing me off under there.
“There, that’s better,” she said after a minute or two of rinsing me off.
“Turn off the water and turn around now,” she continued.
I did so, and she looked down at my raging hard-on jerking up at her.
“It will be easier to take the sample if I kneel down in front of you,” she said. Then to my further amazement, she knelt down in the bath so that her face was virtually level with my dick and balls, and started stroking it. I could almost feel her breath on my piss-slit, it was so close to her lips. God, I felt like sticking it in her mouth there and then, but controlled myself!
Her right hand wrapped my dick firmly as she pumped me. As I looked down, I saw her glorious boobs wobble and jiggle as she did so. Fuck! What an amazing sight!
After all that had happened so far, and seeing mom knelt down in front of me, naked and pumping my hard cock for she was worth, I felt the spunk rise in my balls and let her know as normal.
“I’m gonna cum, quick, mom,” I said.
She grabbed the semen beaker, which she had placed in the bath next to her, with her free hand and positioned it so the tip of my prick was pointing into it, and with her other hand continued pulling on my cock, hard and fast.
“Uh..Uh…Ohhhhhhhhhh,” I said out loud as I came. My eyes closed, but I could feel thick wads of creamy white spunk spurting into the semen beaker.
As usual, mom milked every last drop from me, until I went limp. I opened my eyes and I saw her wipe the tips of her fingers into the beaker as normal, making sure she got every last bit.
I was on a real high and sat down on the edge of the bath to compose myself.
“Feeling better?” mom asked questioningly, holding up the semen beaker for me to see. “Look at that.”
I looked up and saw the beaker was almost a third full, which seemed a lot, considering the size of it. I’d kind of got used it by now.
“Yea, that was really good mom,” I said truthfully. “I do feel much better now.”
“Good,” she said, placing the beaker on a glass shelf above the end of the bath.
“Now, I’m going to use your bathroom to shower as I said before, whilst I’m here, but before you go, there’s something you can do for me.”
“Ok,” I said, hesitatingly, not sure what to expect.
“At my age, it’s getting harder to reach all my body parts, so just soap up my back for me, and then you can go. That will be helpful.”
“Sure, mom,” I said, pleased to be able to help her in some way. I stood up again in the bath. As we were standing, I was still at the tap end.
Mom said, “I’d need to swap places with you to be near the shower end. You don’t have to get out, I think we can just squeeze past each other in here.”
My bath was a fairly large one, but two people could not stand side by side in the width part without touching each other, but there was just enough room to get by. As mom moved herself so she was sliding along, facing me, I did the same, facing her, and our bodies touched. Her boobs squeezed along my chest and I felt her nipples rub into me. Even more tantalisingly, as I held her shoulders for support, because we were about the same height, my pubic area and cock, which was still limp, brushed across her pussy mound! Fuck!
She did not say anything and neither did I, but as she turned so as to face away from me towards the shower, I felt the blood rush to my prick. I was still not quite erect, but the effect of the manoeuvre we had just performed, and touching her pussy area with my dick, had been like an electric current through me.
In all our activity in the bath so far, I had not managed to see mom’s fully naked ass clearly due to our positions. Although I was now standing behind her, I still could not see it ‘full on’ as I was not at, or near, eye level, with it. I looked down and saw the milky white globes of her buttocks as they arched outwards and curved back towards her thighs. Her ass was large, but not too big, and it still retained a good round shape and form with taught skin. It looked fucking hot as I looked down! Despite the fact I had cum just a moment ago, my dick started to get slightly hard again, although mom could not see that, as she had her back to me.
I grabbed the shower gel and started rubbing it on and around mom’s back in wide swirling motion. I moved from her shoulder blades, to the centre of her back, and down to the tops of her buttocks. I was hoping my increasing hard on would go back down, but, as I moved my hands to mom’s lower back, I just couldn’t help let the tips of my fingers slide over the top part of her buttocks, and that just made my cock spring up a touch more, although it was not quite a semi hard-on yet.
Mom had not objected when I touched the flesh over the top of her buttocks.
I moved my hands back up to her shoulders and lathered in the soap a bit more, almost as if was massaging her shoulders and upper back area.
“Oh, that feels good,” said mom in a grateful tone. I felt her relax her shoulder blades down as I did so.
Feeling encouraged by this, I carried on massaging the soap into her back. Then, I decided to take another chance. As the tips of my fingers went to her lower back and reached the tops of her buttocks again, I let both my palms slide gently over each butt cheek, one in each hand, as I rubbed soap into the deep, thick flesh there. I was careful not to let my fingers go anywhere near her butt crack, as that would probably have been going too far.
Mom did not make any disapproving remarks as I did this. So as not to seem like I was lingering on her ass, but just making sure I was soaping her up properly, I slid my hands slowly up again, onto her back.
Then I repeated the whole thing, massaging her back and lathering in the shower gel, and finally again sliding my hands down over her ass cheeks, this time cupping a full deep handful as I squeezed the flesh there whilst rubbing the soap in.
Although mom had not said anything so far about my soaping up her ass ‘unasked’, the net effect of all this was that my dick had just raged up again. Mom could not see it, but I was fully hard again now, and desperately thinking what to say, and trying to avoid touching mom’s ass with the tip of my dick, by moving back a few inches!
Then, quite unexpectedly mom bent forward a little to pick up a sponge and as she did so, the centre of her butt crack went over the tip of my stiff prick, going into it a little way.
“Oops, ….was that your finger?” she said, as she straightened up suddenly.
“Er…no…mom,” I said hesitatingly. “Er.., I’m sorry but I think soaping you up has made me hard again,” I added. There was no hiding it now.
Mom turned around at saw my hard-on, sticking right up towards her.
“Goodness me” she said, “How did that happen so quick? You’ve only just cum!”
“Er…well…I think it was seeing your ass mom,” I said, deciding to be completely honest. There was no point in hiding what was happening.
“You only just rubbed some soap in,” she said, almost aghast.
“Well…er…mom,” I said hesitating again, “It’s just that I…er..I find your body really arousing and …well…especially your ass.”
“Well, really,” said mom in a tone that treated what I had said as childish, like I was a kid who didn’t know any better.
“This will never do. We’ll have to get this childish, teenage, sexual excitement worked out of you, so we can collect your samples in a more adult way!” she continued, a bit more sternly.
I looked at her slightly confused, not knowing quite what she meant, with my dick still poking out towards her.
“I know I need to stimulate you to get your samples, but this is ridiculous!” She looked at me hard in the eye.
“Well, I guess you need to cum again?”
“Yes, I think so,” I said. “But, although I’m hard, I think I need more stimulation to get the cum out as it is so soon.”
“It’s not stimulation you need, I think. More like sex, young man,” she replied. “What are we to do with you, young man?” she continued, a little exasperated, and again in a tone like she was dealing with a naughty child, but not really sounding too annoyed
“Err….,” I said, turning red in the face and completely confused now at what to do or say at her remarks.
“Never mind,” said mom, seeing my confused, helpless state. “Ok, well first hand me the semen beaker,” she continued.
I turned around and picked up the beaker from the shelf. It still had my cum in it from the previous time.
Turning back around, I handed it to mom. I had become a little soft again due to mom’s rather brisk exchange of words.
Mom noticed and said, “It’s gone soft again. Are you sure you need to cum?”
“I am,” I said, feeling a slight ache.
With a bit of a sigh, mom said, “Ok, then, you might as well touch my ass again as you find it so interesting, and then we can get this over with, so I can finish my shower. Just tell me when you are ready to cum so I can get the beaker into position.
Holding the semen beaker in one hand, mom turned around, showing me her back and ass again. Then, as if to offer her ass to me better, she bent forward just a little, placing her free hand on the tiled wall in front of her for support.
I started cupping and feeling mom’s still soaped up, wonderful, large buttocks again. The feel and sight of her glorious ass was extremely arousing, and in no time my dick was fully hard again, sticking out towards her butt cheeks.
I felt an instinctive desire to ram my cock along her butt crack and up into her pussy, but I knew that was completely out of the question.
Instead, I thought of something else quickly. “Mom, would you mind if I just slapped your butt cheeks with the cock a little. That would be really helpful, and I’m sure I’ll be ready to cum quick then.
“Oh, go on then,” replied mom, in a tone that sounded like she was saying ‘let’s get this over with’. “But mind you don’t stick it into my ass crack.”
With my lust raging now, mom’s words were music to my ears, and I took hold of my prick with my right hand and slapped mom’s buttocks a few times with the tip of my dick, and rubbed the piss-slit over the flesh of her ass cheeks, wiping my pre-cum on her.
“Oh, that feels good mom,” I said savouring the feel of her ass flesh on my stretched cock-head, and seeing the way each buttock rippled and indented with each movement.
“I felt the cum rise in my calls after a just a few moments of doing this, and knowing I could not last anymore I said, “Ok, mom, get the beaker ready.”
Mom whipped herself around quickly, knelt down, and seeing I was holding my prick already so she needn’t use her own hand, positioned it so the head of my prick went into the beaker. I wanked myself off into it as she held it correctly in position, watching me spurt my thick, creamy cum.
“Uooooohhh……,” I grunted, loudly than ever before, as I came. I hadn’t wanked myself in front of mom before, and just doing that added to the excitement of the moment as well.
She held the beaker in place whilst I pumped myself for as long as I could, until the cum waves stopped.
Mom stood up after I had finished and looked in the beaker again.
“This is amazing,” she said looking at it. “It’s just over half full now.”
I had sat down on the edge of the bath, as I’d become slightly light headed. As I recovered and looked up at the beaker, I saw what mom meant. It looked like I’d produced almost the same amount of cum as a few minutes ago, and so soon!
All I knew was that I felt much better, and the ache in my balls had eased up.
“Satisfied for now young man?” said mom looking down at me, and in a tone a bit like she was talking to a kid.
“Er…yea mom, thanks,” I replied, and actually feeling a bit like child who had wanted to play with a toy.
“Give yourself a quick rinse and then go and get dressed, and leave me to finish my shower,” she said, handing me the showerhead and turning the water on.
I gave myself a quick wash and stepped out of the bathtub.
“I think we need to get as much cum out of you as possible, Jacob,” said mom, in a stern, business like manner, as she stood naked in the bath looking at me, whilst I dried myself off, “So that Dr Taylor knows exactly how much you are producing. I think we should modify the frequency of our sessions a bit just to see just how much we can get. I’ll have to think about how we should proceed, and,” she paused for a moment, “How to deal with your now obvious sexual desires towards my body.” And with that, before I had the chance to say anything, she drew the shower curtain across firmly and turned on the shower.
Not quite understanding what she had just said, I walked back into my bedroom and lay down on the bed, still naked, and closed my eyes. I was still half in a daze from the high of my orgasm and seeing mom completely nude for the first time. Fuck! That had been amazing!

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