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Electrocardiogram Examination: Record of real orgasm waveforms of two women with great figures and big breasts, whose pussies are toyed with under the guise of research, writhing in irresistible pleasure. Who's the JAV actress in this video? Amateur? Name revealed!

Under the pretense of researching female sexual arousal responses, two stunningly built big-breasted beauties are summoned as test subjects. A lewd experiment using an electrocardiograph begins. A medical vibrator is slowly inserted into their hot pussies. Then the powerful vibration is turned on. At that moment, the two big-titted girls stifle their voices, wearing innocent, shame-filled expressions. Despite being in the middle of an examination, they struggle intensely with the fact that their own pussies are feeling pleasure. They furrow their brows and bite their lips, trying to endure the irresistible pleasure. However, the intense vibration gouging deep into their wombs gradually melts away their reason. As the stimulation continues, the ECG waveforms gradually become disordered. The initially regular waveforms begin to draw irregular peaks. This disorder clearly shows the rise of their arousal. Eventually, while their big tits tremble and jiggle, the women reach a genuine climax. At that moment, real orgasm waveforms are recorded on the ECG monitor. In the main feature, the two women's shame-filled, conflicted expressions and the ECG waveforms are shown simultaneously. The bonus footage includes video from a different angle. Viewers can relive the way the women, despite their shame, surrender to irresistible pleasure, along with the changes in the ECG waveforms. Each time the medical vibrator's intensity increases, their expressions contort further in agony, and they bite their lips harder. Yet hidden within that agony is definite pleasure, which appears as disorder in the waveforms. On the examination table, the two cannot even exchange glances, simply enduring the stimulation given to them. Their big tits sway slightly in time with the vibration, and at the moment of climax, they tremble violently. That trembling tells of the waves of pleasure running through their entire bodies. The waveforms displayed on the ECG monitor accurately record the strength of their orgasms. In the main feature, since the waveforms and expressions are shown simultaneously, viewers can observe both their inner conflict and physical reactions at the same time. The bonus footage includes video shot from a different angle, allowing a more detailed view of their expressions and body movements. For example, various expressions are captured: the shameful look at the moment the vibrator is inserted, the surprised look when the vibration intensifies, and the ecstatic look at the moment of climax. Also, subtle physical reactions such as the movements of their hands and the trembling of their thighs are not to be missed. This work is extremely stimulating for viewers interested in medical fetishes or examination play. The experiment conducted under the guise of research has a realism reminiscent of actual medical settings, and the conflict between the women's shame and pleasure is skillfully depicted. The contrast between the objective data of the ECG waveforms and the subjective expressions adds depth to the work. Viewers can enjoy a sense of presence as if they were observing the experiment. The process of the two big-breasted beauties gradually being dominated by pleasure despite their shame will excite the viewer. The way their reason melts away is truly sensual, and the ECG waveforms corroborate that process. In the main feature, all of this is shown simultaneously, so viewers can enjoy both their inner and outer sides at once. In the bonus footage, their reactions can be appreciated from yet another angle. This work is irresistible for those who like medical play or fetish works.