* This work is fictional, and all persons appearing in it were 18 years of age or older and were filmed with their consent.
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This is the first heartbeat of Luna, age 27.
Luna has long, straight hair, a cute, youthful face, a calm demeanor, and a pure, black-haired look that almost all men would find appealing. She even dreamed of becoming a voice actress in the past, and her voice is incredibly cute. As you can hear in the sample video, she has what is commonly known as an anime voice.
Luna's heartbeat was at an average speed, but when she exercised, it was noticeably faster than usual, and I was soothed by the sound of her heartbeat and her cute voice.
The contents are
Self-introduction and heartbeat
• Reactions to hearing heart sounds and heart sounds
- Heartbeat during squats
- Heartbeat sounds during side jumps
- Heart sounds when chest is compressed
• Electrocardiograph and heart sounds
- Electrocardiogram and heart sounds while exercising with a bag over your head
Echocardiography and heart sounds
Echocardiography and heart sounds after exercise
- Heartbeat sounds during masturbation
That is the case.
The length of the video is,
After introducing myself, I was given a stethoscope and allowed to listen to my heartbeat.
There is no noise in the sound itself, and no arrhythmias are observed, so Luna is in good health. However, her heart rate is a little fast at 85 BPM, indicating that she is indeed very nervous.
Judging from her expression, her face is a little tense and stiff, and there's a certain nourishment to be found in the heartbeat of a woman like Luna who is feeling nervous.
She mentioned midway through that she was embarrassed to have her heartbeat heard, which might explain her faster heart rate. Moreover, it seems that having her heartbeat heard is more embarrassing for Luna than being seen naked, and it appears that she is currently in a very embarrassing situation.
I completely understand how Luna feels.
We also asked her other questions, such as why she decided to do this photoshoot and whether she would let her boyfriend listen to her heartbeat if he had a fetish for heart sounds.
Next, they were asked to listen to the sound of their own heartbeat.
Still a bit nervous, her heart was beating a little fast, and Luna, hearing her own heartbeat for the first time, said, "It's faster than I thought!"
I asked the patient to change the position of the stethoscope, placing it a little higher and listening. Then, when I placed it near the aortic valve on the opposite side, she said, "I can't hear much!" and what she heard was more like blood flow sounds than heart sounds. However, when I placed it near the lower part of her chest, right at the tip of the apex of her heart, she could hear the heart sounds clearly with a deep bass tone, and said, "I can hear it quite well here!" Even so, she said that the left side of her chest sounded the most like the heart, and she seemed interested in the differences in how her own heart sounds were perceived.
When the stethoscope was also placed on the carotid artery, a faint sound of blood flow could be heard there as well, conveying the sensation of blood being pumped to the head against gravity.
When Luna drank water, there was little change in her heart rate, and she herself said, "It's not changing much!" Most models show some kind of change, so it's rare to see no change at all like Luna's.
Finally, when we asked them to take a deep breath, we noticed a difference.
When you inhale, your heart rate increases rapidly, almost like a jump, but if you hold your breath briefly and then exhale, it slows down accordingly. As you near the end of your exhale, your heart rate gradually increases again, perhaps because you're feeling uncomfortable, and then increases again when you inhale again, creating a loop. Unlike when you drink water, the change in heart rate is very clear here, indicating a normal sinus arrhythmia.
For the exercise-related filming, we started by having the subject do squats.
Initially, the stethoscope was held between her swimsuit and her chest, resulting in a faint sound. However, she later held the stethoscope in place with her hand, and the sound became much louder.
Furthermore, during the squats, her heart rate gradually increased, and after just one minute from the start, it was pounding. "It's getting really fast!" Luna said, and by the end, her heart rate was 110 BPM, higher than when she was nervous at the beginning.
After it was over, I asked them to stand up and take a deep breath.
While inhaling, the heart rate doesn't change, but when you exhale slowly, your heart rate suddenly slows down and calms down. However, when you inhale again, it briefly returns to the speed of immediately after squatting, indicating a clear sinus arrhythmia.
Finally, we had the patient sit on the bed to allow their heartbeat to calm down.
Next, we had them listen to their heartbeats while they performed a side-to-side jumping exercise.
We also tried listening to his heart with a stethoscope while he was jumping sideways, but we couldn't hear his heartbeat because of the vigorous movement. That just goes to show how intense his movements were.
Normally, in everyday life, you wouldn't get a woman to do such strenuous exercise for you, let alone hear her heartbeat at that time, so the fact that she does it for you is just amazing.
During the exercise, Luna's breathing was incredibly heavy, and immediately after she finished, her heart was beating so fast, "thump-thump-thump-thump-thump," that I was worried whether her heart was even contracting properly. Her heart rate was probably over 160 BPM. If I could see Luna's heart with X-ray vision, I'm sure it would be convulsing. It was beating so fast, and while the step-ups that the other models always do are great, the side-to-side jumps are just as intense, and I can hear her heart beating at its absolute limit, which is fantastic.
When Luna heard her own heartbeat, she was so out of breath that she could barely speak, saying, "It's really, really fast, ha ha ha," indicating that she had truly reached her limit.
When I placed my hand over the stethoscope, I could feel a strong thud! thud! thud pushing back, so much so that I thought the heart might jump out of the chest at any moment.
After taking some deep breaths, I had the patient sit on the bed, and then lie down again. The rapid heartbeat gradually calmed down, and although I was worried it might stay that fast, it returned to normal, which was a relief.
When I compressed Luna's chest, I could clearly hear her heartbeat despite her large breasts, and my body was shaking in time with her heartbeat. My body, which weighs hundreds of times more than her heart, was shaking so much that it wouldn't be surprising if it burst. That's how much strain was being placed on her heart.
The rate of compression doesn't change much, but each heartbeat becomes stronger, as if resisting being crushed.
When I zoomed the camera in on her chest and applied pressure again, my hand twitched in time with her heartbeat, and Luna's body also swayed slightly in time with her heartbeat. You can see the movement of her heart throughout the entire video.
When using an electrocardiograph, a clear waveform is displayed on the screen once electrodes are attached.
The electronic beeps from the electrocardiograph and the sound of the heart can be heard at the same time, indicating that the electrocardiograph is accurately capturing the heart's movement.
Her heart rate seems a little high for someone in their twenties, and when I showed Luna the average heart rate for women in their twenties and compared it to hers, she also said it was a bit high. I wonder if she's still feeling nervous.
When I ask them to take a deep breath, and they take a big inhale and exhale slowly, their heart rate drops sharply by about 20 beats per minute, and then as soon as they start inhaling again after exhaling, it rises just as quickly back up to its original heart rate.
I knew Luna was prone to sinus arrhythmias, but I didn't expect it to be this pronounced.
Also, since the oxygen saturation level remains almost constant both when inhaling and exhaling, it means that there is always a lot of oxygen in Luna's body.
Attaching an electrocardiograph can lead to new discoveries.
Finally, I asked them to hold their breath to the absolute limit.
At first, your heart rate drops sharply, just like when you take a deep breath, but it gradually starts to rise again.
Towards the end, the patient showed signs of distress, and consequently, their oxygen saturation level dropped slightly, and their heartbeat became stronger. When they reached their limit and resumed breathing, their heart rate increased sharply, exceeding 90 BPM.
Even after resuming breathing, oxygen saturation levels did not immediately rise; in fact, they decreased. This indicated that oxygen was being consumed in the body, unlike when taking deep breaths.
For the electrocardiogram and heart sounds recorded while exercising with a bag over her head, Luna performed leg raises with a bag over her head, keeping it sealed. After only about 20 seconds of exercise, her heart rate had already exceeded 100 BPM, indicating that even this seemingly simple exercise was quite strenuous for Luna, who doesn't usually exercise.
Furthermore, the oxygen inside the bag is limited, so the more you do it, the more difficult it becomes, and the amount of oxygen decreases numerically, indicating that it is being consumed by the exercise.
The patient raised their hand midway through, so we removed the bag, but their oxygen saturation continued to drop, falling sharply to 76. Their heart rate also increased to 112 BPM, suggesting their body was trying to compensate for the low oxygen level by increasing their heart rate.
My oxygen saturation level hadn't fully returned to normal, and my heart rate was still high, but they performed the test again.
Luna did an amazing job enduring such a tough procedure twice. Moreover, her oxygen saturation dropped to 71 during the second attempt, and it seemed even more difficult for her than the first time.
And there were many water droplets inside the bag that had accumulated from Haruna's breathing, so we've included those in the footage as well.
During the echocardiogram and heart sound examination, a small, squiggly mass was visible on the screen when the probe was applied. It was moving in sync with Luna's heartbeat, so it was undoubtedly Luna's heart. It was a little small, and Luna herself said, "It's surprisingly small." She also described its shape.
Finally, when we asked participants to hold their breath, their heart rate didn't seem to change much while they were holding their breath, but immediately after they resumed breathing, the heart rate became slightly more rapid for a brief moment.
Next, we used an ultrasound to examine the heart immediately after exercise.
For exercise, we ask you to do squats.
Immediately after the procedure, we had Luna sit on the bed and performed an ultrasound. It was a little difficult to see, but her heart was beating faster than before, and she said, "It might be quite fast!"
When the patient took a deep breath and exhaled slowly, their movements slowed down dramatically, and an ultrasound revealed that they were experiencing sinus arrhythmia.
For the heartbeat during masturbation, as always, she took off all her swimsuit and did it in her natural state.
Luna's pubic hair is so thick that she herself is aware it's very hairy, and it's among the thickest of all the models we've worked with so far. When you see it on video, it's like a jungle.
She has a cute face and an incredibly cute voice, but the fact that her pubic hair is thick and coarse creates a striking contrast.
After inserting the adult toy and turning it on, she involuntarily let out a gasp, and then began moaning quite intensely. Just after she said, "I'm coming," her heart rate quickened slightly as she climaxed, and after she climaxed, we could hear a sound like a premature contraction, where her heartbeat seemed to be slightly off. It appears that masturbation has put a strain on her heart.
The format is "MP4".
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