Adult How To

A Therapeutic Trial Ch. 02

The trial size increases.

Spankmasters
May 2, 2024
16 min read
first timersA Therapeutic Trial Ch. 02group
A Therapeutic Trial Ch. 02
A Therapeutic Trial Ch. 02

A Therapeutic Trial Ch. 02

When I heard a soft knock on my door, I assumed it would be Robin. Unexpectedly, it was Cindy instead.

I allowed her inside and we sat down beside each other.

Following pleasantries, she became serious.

"Do you truly believe that filling Robin with your semen will enlarge her breasts?" she inquired.

"I'm not certain about Robin's thoughts. Perhaps she just went along with it as an excuse to have sex with me," I responded.

"Maybe," Cindy agreed.

"Regardless, you're in the medical profession or will be soon. It's said that if someone genuinely believes a medication will have an effect, it tends to work. Do you have previous experience with this approach?"

"No. Not quite the same method. During college, I persuaded several girls that sperm would whiten their teeth, freshen their breath, or alleviate heartburn. They swallowed it enthusiastically," I admitted.

"Disgusting!" Cindy exclaimed.

"However, it served a purpose. These girls needed a guilt-free excuse to consume me," I added.

A lengthy silence ensued before she spoke again, inquiring, "Are you still amenable to engaging in anal sex with me?"

Surprised, I blurted out, "Anal sex?"

"Yes," she said excitedly. "It's filthy and depraved like the act. Plus, it sounds better than anal intercourse."

Cindy, with her unpredictable nature, never ceases to amaze me.

"I suppose so," I responded.

We remained quiet for a moment before she probed, "Are there any conditions?"

"Yes," I replied. "You mustn't disrupt my arrangement with Robin. You'll need to insist that you've become a believer and want to try it to witness if it benefits you."

Timely, Robin entered the room.

"Hey, you two. What's going on?" she asked.

Cindy wasted no time in launching into her proposal. "We're working out the specifics of Bob inseminating me to increase my breast size."

Robin expressed her contentment, "Great! It's working for me. I'll have to share you with Cindy."

Having been rendered silent, I could only watch as scenes played out.

"Cindy, would you like to observe? Should we do it right here and now?" she suggested.

I hesitantly said, "Do I not get a say in this?"

"Of course, darling. You're always game," stated Robin.

I stood up and removed my jeans and underwear, revealing a flaccid penis.

"I can rectify that," proclaimed Cindy. Robin suggested, "Me too!"

I questioned, "Why don't you both remove your pants and join me in this?"

Pantless quickly, they agreed.

Desiring to hide Robin from the view, Cindy took a position at my feet and set out to arouse my limp penis.

"I'm concerned this thing is too large for my anus. Is this plausible?" Cindy worried.

"Instruction is needed. Focus on two factors: length and girth. Thickness may result in discomfort due to excessive stretching, but length enhances pleasure as the penis progressively fills the ass," I explained.

Cindy's acceptance of my explanation was evident in her subsequent blush and arousal.

Robin observed the scene with interest, processing my earlier explanations. She reached out and started to play with her genitals, clearly recalling the sensations. I noticed she was becoming aroused, recalling those past feelings.

Cindy stated, "Please go slow."

I carefully proceeded, inserting more than just the tip. Cindy made soft, grunting sounds during the process.

"Slow down!" she urged.

The remainder of my penis entered and the sensations sounded quite painful to outward listeners.

Cindy, on the floor with her buttocks widely parted, provided a breathtaking view of her pink vulva and virginal anus. Clearly never stretched before, it resembled a small, puckered orifice.

"Stop staring at it and go forward," she demanded.

Robin mused on a way to assist, and then spit a significant amount of saliva onto my firm erection.

I aligned my member with Cindy's anus and pressed it gently, causing her to react with a mixture of pleasure and trepidation.

I maintained a slow pace as my member slid deeper into her rectum. The experience was apparent in her little grunts.

Purposely, he disappears into her tight anus. She continues to make some type of noise with each little increment.

Robin enquires, "Is she okay?"

"She asked me to do this, recall?"

Whispered softly by Cindy, "Yes. Don't stop."

My erect dick gradually enters, bit by bit.

I grasp her hips to keep her from trying to run away. She won't do that, as she seems to want it.

Firmly holding her, I push in further.

Cindy inquires if it's all the way in, and I tell her no.

"Just relax. It's more than halfway in and I know you can take the rest. Remember, it has to be all the way in to receive the full benefits of the treatment."

I gradually push the remainder of it in, until my testicles touch her.

She lowered herself from grasping herself up with her hands and went down on her elbows to become more comfortable. She turned her face to the side, allowing me to view her facial expression and eyes.

Her expression was blank, and her eyes crossed slightly. I hoped they would return to their typical position.

"I can't believe how far it is up in me."

Robin explains, "But that's good Cindy. The therapy will be effective due to this."

Cindy may have considered the same thing I did, how can she believe that nonsense?

However, Cindy was obtaining what she desired, fucked hard up her anus.

I set to work like a man on a mission, rhythmically penetrating and retracting.

Cindy had held her breath when the final inches slid in, but she began to breathe again.

Meanwhile, Robin furiously masturbated. I believe she was equally aroused watching my cock slide up Cindy's anus as much as her own.

Watching her masturbate was turning me on just as much as Cindy's tight anus.

I whispered, "I'm about to climax."

Cindy replied, "Yes, please." Robin added, "Ensure it's all the way in!"

I accomplished both. Cindy's eyes abruptly became completely open as she felt my load of semen enter her.

Cindy emitted sounds of pleasure as Robin experienced a powerful orgasm.

I barely managed to maintain myself, but I caught myself. We all remained motionless for a few moments, then I withdrew my cock from Cindy's anus.

Once again, I had injected the semen so deeply up her anus that none leaked out. Robin then said, "Cindy, go lie down on my bed, face down."

Cindy made her way to the bedroom, unsteady and almost collapsing. She got comfortable on the bed, face down. I realized we should have done it this way, not on the floor.

Robin had a scowl on her face, but I attempted to convey that she was fine.

"Cindy, are you okay?"

After a concerning pause, she replied, "Yes. I've never been so thoroughly fucked. I didn't achieve an orgasm, but I feel completely satisfied."

Still lying face down, she continued, "I could feel him release his semen in me. I felt his cock stiffen and contract, and I felt each spurt and squirt enter me. And I mean way up in me. If it went any further, it would have shot up into my mouth."

Robins facial expression revealed pure jealousy.

That marked the conclusion of that day's amusement.

The women worked out a rotating schedule for when they would alternate. Neither of them inquired about my desires. Nevertheless, I had no issue being utilised.

The following episode in this arrangement involved the nearby sperm bank. Don't laugh, but Cindy thought I should perform some community service. She has a friend at Nursing School who works part-time at the Sperm Bank, and she scheduled an appointment for me to receive a physical examination and possibly donate.

On the next Thursday afternoon, I entered the establishment and signed in. The woman at the front desk greeted me with a smile and took me into an exam room.

She provided me with a medical exam garment and instructed, "Please remove everything and put this on with the front opening."

"Is everything involved?"

She casually answered, "Yeah. We need to conduct a physical inspection to confirm your health before we gather the donation."

She left me alone in the room.

Alright, I thought, here we go. I removed my shoes, then I took off my pants and underwear, then my shirt and socks. I struggled into the thin robe and knotted the string in front of me. It didn't entirely close the gap, and I recognized that my hairy belly and genitals were visible.

There was a light knock on the door, followed immediately by it opening. A stunning lady who I can describe only as lovely entered.

"Hi," she said with a smile. "I'm Karen, Cindy's friend. She told me a lot about you. She believed you would be an ideal donor with your uncommon physical abilities."

"Oh, she did? That was thoughtful of her to share you with me."

A knowing smile spread across Karen's face. "She didn't reveal any secrets or confidences. But she did explain that you possess certain unique physical characteristics. Can I start the examination now?"

She stepped closer to me and untied the string and opened the robe. She examined and touched every part of my body and then used a stethoscope to listen to my heart and breathing.

"Sit here on the side of this table. Relax. I must test your blood pressure."

I followed her instructions and she put the cuff on me and inflated it.

"BP and pulse are normal. I guess we've finished that part."

"Now I need to perform the genital examination. Are you okay with that?"

I nodded my head in agreement. She knelt in front of my chair and started to poke and massage my testicles and soft penis.

She picked up an instrument from the table that looked like a small calliper and carefully measured each testicle.

"These are much larger than the norm. Bigger than I've ever seen. Possibly why you produce so much sperm with your semen."

So, Cindy told her quite a bit about our activities.

I merely smiled and shrugged my shoulders.

She then shifted her attention to my soft cock. She pulled the skin back and examined the head as if it was the first one she'd ever seen. I knew that wasn't the case.

"Does this skin retract like that naturally during intercourse?"

I became irritated and replied, "Yes! Of course!"

"During sex, does it feel like this?"

She started stroking it back and forth. I couldn't help myself, I began to get hard.

"Don't be self-conscious. It's perfectly ordinary. We need this to effectively collect the donation."

She took a measuring stick of some kind with various markings on it from the table and measured my penis.

"Hmm. 20 cm. That's nearly eight inches."

"Measure it again while you stroke it, please."

Her delicate touch caused it to lengthen and stiffen.

She measured again and whispered, "Wow. 23 cm. That's nine inches."

She logged my measurements into my file in her computer, both the size of my testicles and the length of my penis.

This was arousing her just as much as me. The fragrance of her vagina filled the room.

Now she dropped any pretense of a medical procedure and began to stroke me off expertly.

She noticed the expression on my face and said, "I'm familiar with how a man's equipment works. I've learned a lot working here."

I could see she was aware of the situation. I now had a raging hard-on.

"Does it go all the way into them?"

I couldn't speak, but I nodded my head in agreement.

"Even Robin?"

I nodded yes once more.

"Astonishing," she said, with a wistful look in her eyes.

"Does it cause discomfort for them?"

I could speak, "They squirm and wail initially but they never tell me to stop, nor would I."

Now she blushed fiercely and breathed heavily. Her imagination's scene seemed genuine.

She speeded up her stroking technique and I could sense the end approaching. She understood it, too, and grabbed a glass container of some kind from the table, such as a beaker or similar.

My cock started throbbing in her hand and she skillfully placed the container right next to the tip. She knew precisely how to aim it.

From one spurt to the next, my cum went straight into the container. She waited patiently for my ejaculation to end.

"Spectacular," she said, and held the beaker over her head to see and calculate how much I had produced.

She stood up and I did the same, attempting to cover myself with the ridiculous robe.

"Do you do this with every guy you see?"

She seemed astonished and asked, "Do you perform this act on every man you see?"

"Ugh, no. Some of the lads that come in here are creepy. I leave them alone in the room, and they have to deal with themselves. We've got a peep hole for observation, and I've learned that a hideous guy usually has an equally hideous schlong – it's deformed in some way."

"But if a man is healthy and attractive, I usually help him with the contribution."

I imagine you do that, I mused.

"This is a procedure we'll be using for in-vitro fertilization and other methods like artificial insemination to create pregnancies for desperate women. Thank you for your assistance."

"Before we proceed, there's one last test I need to perform."

She lifted the glass to her lips and took a tiny sip. She swirled it around in her mouth for a minute before swallowing it noisily.

"It passed the taste test. I didn't drink much. There's still plenty left to utilize."

Aside from that, she remarked with a sneaky smirk, "You taste scrumptious, by the way. I could have downed the full beaker."

And with that, she was gone out the door, without even a hug or a smooch.

When I left, I stopped at the reception desk. The woman smirked knowingly, knowing what Karen likely did. I'm sure there are women clamoring to work there.

"Do I need an appointment for my next donation?"

"No, you can just stop by any afternoon and ask for Karen. The majority of our work is done in the morning, and the late afternoon is typically available." And then I left, back to the usual routine.

Robin and Cindy work in shifts, with one having even days and the other odd. Cindy had the day I visited the Sperm Bank. She noticed the decreased load but couldn't complain; it was her idea.

The following week, I made a beeline to the Sperm Bank in the afternoon. I greeted the front desk lady, requesting Karen. Another smirk from her, but it didn't bother me. If she desires any of the action, she'd have to chat with Karen.

She put me in the examination room and said, "You can keep your clothes on this time. We only perform the physical the first time."

I eagerly awaited Karen's arrival.

"So, you're here for another donation?"

"Definitely!"

"However, we've got a problem with that. I've discussed your case with the manager, and she stated we can't accept any more of your semen."

I was astounded and perplexed. I wasn't really complaining, though.

"Let me clarify. The volume of your semen last time could potentially impregnate up to twelve women. Continuing with your donations would result in an exponential increase. Some of the babies may be male, and some female. Sisterhoods could develop, and that could cause genetic issues with any children."

I was astonished and pleased to hear of their ethical decision-making process. But I was still disappointed.

"Well, better not have my testicles explode on the drive home."

"I won't simply give you a treatment. I'm giving you a complimentary special treatment."

"Please take your pants and underwear down, below the ankles. Sit in the chair and loosen up."

With my trousers and underwear pulled down to my ankles, I did as instructed.

"Spread your knees apart."

"You like being in charge, huh?"

"Indeed. I'll be the one in control. I'll make your body react. Even if you try to delay it, I will triumph. Simply sit back and let me do this for you."

Straddling me with her knees apart, she moved between my legs. My shaft was reacting to the scenario and was as stiff as a board.

She began stroking my hardened member with her expert touch. I felt like I was about to climax, but she commanded, "No! Not yet!"

To ensure I wouldn't cum, she squeezed my balls quite forcefully. She wanted to play me like a musical instrument.

She urged, "There's only one thing I want you to do. If you're about to finish, inform me. If you can't speak, just give me a tap on the head."

"I won't stop; I'll finish emptying you. I just don't want to catch me by surprise. I want to be ready for it."

And without further ado, she took my rod into her mouth and started the greatest blowjob I've ever experienced.

She slid her lips over the smooth tip and then licked it.

She changed into a mechanized rhythm, bobbing her head up and down, taking about half of my girth in her mouth.

She continued the rhythm, and I thought she would carry on for an hour.

It wasn't long.

I gave her a tap on the head, and she paused halfway on my cock. She started softly sucking and swallowing everything I expelled.

When I stopped expelling, she sucked and cleaned anything on my cock.

We recovered and spoke about her impressive skills, stating, "How did you do that? Neither Cindy nor Robin can handle it so quickly."

I shared with you how men's bodies function, there's a brief delay between each spurt of semen. You must learn to swallow quickly during that short gap to prepare for the next spurt.

We both stood up as I pulled up my pants and fastened my belt. She wobbled a bit before sitting down on an empty chair.

"I've worked here for a year and a half, and I've never seen a man ejaculate that amount. I'm feeling quite full," she said.

After a moment of discomfort, I expressed my discontent with how things had gone. "I'd like to see you again."

Karen seemed excited by the proposition. "I've been fantasizing about experiencing anal sex. Although I've never done it, I can't help but wonder what it's like."

I was oblivious to her implication, so she suggested, "Do you think you could work me into your schedule?"

"Sure, I'll tell Cindy and Robin. Your place is right next to mine. And it seems like they've developed a connection. I'm sure they'll be supportive."

Karen proposed sparingly, "How about tomorrow, late afternoon?"

Before I could respond, she added, "I don't want to create any tension or rivalry. Ensure it's fine with them."

I knocked on their door that evening. I updated them about the incident at the sperm bank and Karen's plan to meet.

Their reactions were distinctly different. Robin felt possessive and was upset about sharing me with another person. Cindy, however, seemed turned on by the idea of a threesome.

When Cindy demanded, "Are you going to fuck her anally? I'd love to watch," I said, "I'm not sure, she might just want to swallow."

Cindy was ecstatic and practically glowing with anticipation. Robin, on the other hand, pouted like a child.

Cindy took matters into her own hands and made herself available. I overflowed inside her.

At the designated time the next day, we waited for Karen to join us. It was tense, and we all sat nervously. Karen finally arrived, and Cindy led her to the couch. They sat and waited quietly.

Robin, growing impatient, said, "Are you here for Bob to fuck you anally?"

Karen blushed, whispered, "Yes, if it's okay with everyone."

"It may be too intense and personal. You're sharing a very private part of yourself."

There was a tense moment of silence. Karen continued, "I've made a special effort to make sure I'm clean down there."

She looked at me and said, "I hope it helps."

My cock strained, but I couldn't contain it any longer. It sprang free from my pants.

Cindy and Karen both removed their clothing. Robin appeared uneasy as she covered her breasts with her arm.

I stood and began to remove my clothes. Karen followed suit by offering her backside. The small, virgin anus was on display.

I gently ran my cock along her anus until it stuck to her.

Concerned, I realized it was her first time, but she had prepped herself with lubricant.

Gently, I applied pressure with the head of my cock. It initially rested inside her.

Slowly but firmly, I pushed my length into Karen. Despite her discomfort, she held back, not offering any resistance.

With my hands on her hips, I slammed forward and pressed my hips against hers, effectively plunging my length further inside. Her smooth, silky butt-cheeks added to the incredible feeling of my cock inside her.

I gazed at her as I started to penetrate, gradually withdrawing before thrusting back in, colliding against the seat of her butt.

There was silence, apart from the collective breathing of the four individuals present.

I felt my stamina rapidly dwindling.

"I'm sorry. I can't postpone it anymore. I can't delay. I must reach the finish line."

Karen's voice came muffled by the floor, but she said, "Don't wait. Receive me."

I pushed in deeply and yanked back sharply on her hips, compressing her ass and reaching a deeper level inside her, resulting in a grunt from Karen.

I ejaculated with a stream of spurts and Karen concurred with a cacophony of pleasure and appreciation.

No one stirred, remaining in a frozen posture like a sculpture representing sex in ancient times.

I carefully withdrew, unwilling to have anything I inserted return.

Unfortunately, this didn't quite work, as when the tip protruded, a large glob of velvety semen appeared in Karen's anus.

Robin recoiled, but Cindy leapt behind Karen and licked and sucked the semen from her anus.

The scene suddenly shifted from repulsive to erotic in Robin's mind, causing her to push her long bony middle finger up her anus.

She frantically finger-fucked herself so as to reach the depth I had stretched her anus to over the course of several weeks.

She surrendered and desisted before achieving orgasm. I assisted Karen in standing up and steered her into my bedroom. She climbed onto the bed, joining me.

I was surrounded by a cluster of females who embraced and caressed me from all sides.

Karen triumphed in the wrestling match and settled close to me.

"Oh my God. I'm so pregnant with you. It feels like I've been ravaged by a football team."

The metaphor unsettled me; she remedied it.

"Thank you that it's all from you."

She fondled my balls and instructed, "Work again and create more."

I dozed off, brimming with endorphins.

When I awoke in the early hours, they had all vanished.

I got back to sleep.

In the morning, I thought of the harem of women who would soon be gracing me with their presence. Each day, someone new to ride, riding up and down.

The days rolled by in a haze. The women stuck to their routine of taking turns. No more cum piracy. Every third day, I got Karen.

I'm still drawn to the two slender women with the flat chests and firm butts, but Karen is more womanly, boasting large breasts and helping me reach her deepest depths. A subtle lift or trivial change in position makes a noticeable difference.

One afternoon, as I sat lounging and waiting for the subsequent arrival, my cell phone rang.

I presumed it to be a spam call but answered it.

A soft, female voice revealed, "Hi. My name is Suzanne. I work at the Sperm Bank with Karen. Our supervisor has some concerns about the data Karen entered on our computer. The numbers appear to be inflated."

"I'm baffled."

"She documented some figures regarding you that seem exaggerated. She has done this before. Our manager requests that I visit you to verify the measurements. It won't take long."

I consented, contemplating that should the measurements be accurate, Suzanne would likely stay for a longer period of time.

I hope she's as enticing as her voice suggests.

Much like the old joke, if I perish, I perish.

Read also:

    Source: www.nice-escort.de