134 Orgasms in an Hour? Questioning the Methodology of the Orgasm World Records
Author: Mark Miller
About the Author: Mark Miller, a blogger at MultipleOs.blog, is an independent researcher specializing in neurophysiology-based conceptual engineering in the sexual sciences, especially as it pertains to orgasm, so-called "types of orgasms," sensory processing, and other bodily phenomena.
Introduction
According to World Sex Records (1997), sex researchers William Hartman and Marilyn Fithian produced data that suggested a woman had 134 orgasms in one hour, while the highest number for a man was 16 in one hour. These figures have since been widely cited in scholarly articles, blogs, social media, and news outlets without review or critical thought, despite the lack of published, reliable peer-reviewed data on the so-called record mentioned by Hartman and Fithian in various interviews. To my knowledge, this is the first critical review of these claims. The apparent “records” are likely artifacts of flawed methodology rather than evidence of multiple orgasms.
Hartman and Fithian’s Initial Measurement Approach for Orgasm Detection
In their preliminary research published in The Physiologist, Berry Campbell, William Hartman, Marilyn Fithian, and Irene Campbell (1975) outlined diverse orgasm measurements but omitted instrument specifications. However, drawing from their conclusion, later studies relied solely on heartbeat to evidence orgasm:
"Information to establish a baseline of human sexual response to serve as a foundation for experimental work was gathered on 23 men and 57 women in 310 polygraphic recordings of 617 orgasms during masturbation and coitus. No critical information of this kind has been amassed before. The events during sexual response have been well described by Masters and Johnson by verbal material does not lend itself to the purposes at hand. We have studied especially vaginal pressure in the different segments of the vagina, rectal pressure, respiratory pattern, ECG, heart rate, and capillary pulse volume. We found that orgasm resulted in simultaneous contraction of all the muscles of the pelvic outlet; thus comparable records could be made from the rectum and vagina, allowing equivalent studies on both men and women and of couples in coitus. Consistency of pattern within the individual and the widest variation between individuals was found. Of the systemic parameters, heart rate only was found to be a reliable indicator of orgasm. What we have called the cardiac crisis is a constant feature of the sexual response. The widespread prevalence of premature ventricular contractions is show. The study suggests that valid experimental series can be set up with a judicious matching of the response patterns" (p. 159).
The De-Evolution of Hartman and Fithian's Measurement Techniques for Orgasm Detection
Hartman and Fithian’s 1970s multi-measurement approach (e.g., self-report, respiratory pattern, pelvic floor contractions) was abandoned in favor of heartbeat at 120 beats per minute—a flawed proxy for orgasm. Though heart rate rises during climax, their exclusion of cross-validation methods (e.g., gold-standard urogenital contractions) introduced critical methodological errors.
Hartman and Fithian’s (1984) defined orgasm “a peak in emotional and physical responses, accompanied by pelvic contractions, experienced during sexual stimulation” (p. 4). Their orgasm definition emphasized pelvic contractions, yet they abandoned this measure for heart rate, a flawed proxy for orgasm. Apparently, they “have not observed the ‘plateau’ phase” (Chalker, 1994, p. 4) established by Masters and Johnson—a stage marked by sustained high arousal (elevated heart rate, muscle tension, genital sensitivity) without the neural switch from excitation to inhibition in the brain/spinal cord that defines the orgasm phase. By conflating plateau-phase arousal with orgasm, they likely conflated general arousal (excitement/plateau phases) with orgasms.
Furthermore, subjective report of orgasm was also abandoned. An anonymous 1997 World Sex Records entry claims Hartman and Fithian abandoned their orgasm-reporting button:
“For 22 years, Doctors William Hartman and Marilyn Fithian of the Center for Marital and Sexual Studies in Long Beach, California, have been faithfully recording the orgasmic response in their laboratory…. After several false starts (originally they had the subjects push a button whenever they had an orgasm, but during the heat of the moment they usually became too preoccupied to be concerned with the cause of research), the study continued apace, eventually encompassing 751 individuals” (n.p.).
If accurate, their “record” counts—determined without self-report—may have misrepresented participants’ actual experiences. The participants may have been surprised to hear they had so many orgasms.
Critical Analysis of Hartman and Fithian's Heart Rate Methodology
Sometime after this study, Hartman and Fithian selected 120 beats per minute as a threshold to evidence orgasm. Hartman and Fithian’s use of heart rate spikes (~120 BPM) as definitive orgasm evidence ignored confounding variables (e.g., arousal phases, physical exertion) and lacked peer-reviewed validation. Their flawed protocol—with no controls and unpublished data—renders their extraordinary claims scientifically unfounded.
The researchers do acknowledge that a few confounding factors (Hartman & Fithian, 1984, p. 159) like anxiety and physical condition can influence heart rate, but fail to adequately address the numerous variables that impact cardiovascular response, including:
Activity level (baseline fitness)
Level of exertion during masturbation
Age (maximum heart rate changes)
Holding the breath
Medical conditions
Medications
Position/posture
Particularly problematic for their methodology is the fact that their female record-holder had cycled five miles to reach their research center, potentially elevating her baseline heart rate before the experiment even began. The researchers fail to document the recovery time between her arrival and the initiation of data collection, creating a major potential confound.
These methodological shortcomings lead to a classic causal attribution fallacy wherein heart rate elevations of various origins are all attributed to a single cause—orgasm—without adequate controls or validation. Consider the variability observed by other researchers investigating heart rate during self-reported orgasms in the tables below.
Bohlen (1984) shows heart rate variability of 102 ±16 beats per minute for orgasm with self-stimulation and with large increases in heart rate based on positions like the woman-on-top and man-on-top coitus.
Alzate, Useche, and Villegas (1989), using heart rate as an indicator of orgasm, reported values barely above 100 bpm, falling short of Hartman and Fithian's ~120 bpm threshold.
The same arbitrary 120 BPM heart rate can come from many different causes, not just orgasm. What counts as “elevated” heart rate varies by individual, and the 120 BPM threshold is arbitrary. Different people can have different heart rate responses to orgasm. Hartman and Fithian can't reliably work backwards from heart rate to determine cause was orgasm or not.
Hartman and Fithian’s “Multiple Orgasm” Typology
The Female “Record” of 134 Heartbeat Peaks
Hartman and Fithian (1984) categorized female orgasms solely based on heart rate patterns, without cross-validation from other physiological markers:
“We use heart-rate peak as the clearest method of identifying orgasm. Usually the heart rate at rest will be about 70 beats per minute. It will speed up to about 120 beats during orgasm, and return to 70 beats when orgasm is over. A typical chart of a female during orgasm resembles a bell-shaped curve, with the actual duration of orgasm usually being from about six to thirty seconds. The longest orgasm observed lasted one minute. Some women have several such peaks, interspersed with “valleys.” We call such repeating of orgasms multiple orgasms, discrete (see page 160). That is, they start at “rest,” or baseline, reach a peak, and return to baseline before another peak occurs. Another group of women have an entirely different pattern of multiple orgasms. Their heart rates do not drop to baseline between peaks, but stay high. This is called multi-orgasms, continuous. Yet the peaks are easily identified both by us and by the subjects (see page-161). Another pattern we find is one where the woman has a number of discrete orgasms and then a multi-orgasm with little drop in heartbeat between peaks. Probably because of the emphasis placed on female response during the years of our research, we have far more samples from female subjects than from males. However, even with our smaller male samplings we can detect certain definite similarities between male and female responses. Though individual reactions indicate a “fingerprinting” effect of sexual response for any one individual, there are still certain overall patterns that can easily be identified. It has become clear to us that the similarities between male and female sexual responses are far greater than most people expect them to be” (Hartman & Fithian, 1984, pp. 4-5).
In Any Man Can, Hartman and Fithian (1984) presented graphs of these multiorgasm patterns, but the non-academic publication omitted key details (e.g., participant demographics, stimulation methods, procedures). It’s also unclear if the data came from a single participant or many individuals.
In Life as a Sexologist (Bullough et al., 1997), Hartman acknowledges the 134-orgasm case lacked validation via rectal probe and mentions Berry Campbell’s initial skepticism:
“We recorded 134 orgasms during a fifty-minute research session with a female volunteer. Upon studying the chart our physiologist [Berry Campbell] was unconvinced that so many separate orgasms had been recorded. He reevaluated the chart and changed his mind after three other subjects had a similar pattern. Did she have 134 separate orgasms with 134 contractions? This is our current thinking, but future research might well define and monitor status orgasmus as well. This refers to subjects entering and remaining in a state of orgasm for extended periods of time. Pelvic contractions of subjects are not easily monitored since some start contractions easily and stop after orgasm. Others begin when the orgasm reaches a high degree of intensity but continue on long after the cardiac data indicate that orgasm is technically over. Some subjects tighten their muscles to bring on the orgasm so contractions occur on a tightened muscle. In all these situations a sharp, clear pattern of contractions is not present” (p. 211).
Campbell’s acceptance of the data based on pattern similarity—without cross-validation—highlights the study’s methodological flaws. The researchers failed to recognize that heart rate alone is a poor orgasm indicator. Hartman’s claims contrast with Bohlen et al.’s (1980, 1982a, 1982b) work, which clearly documented the contractions. Master and Johnson’s (1966) status orgasmus is merely a term applied to a case of a 43-second orgasm, which is not “continuous,” just a longer than average orgasm. It is within the range of a few males and female orgasm contraction length in Bohlen et al.’s (1980, 1982a) rectal probe contraction study.
Hartman’s difficulty monitoring pelvic contractions likely stemmed from their contemporary technology. Modern probes (e.g., Prause’s research probe) reliably can assist researchers in distinguishing between voluntary contractions, faked contractions, tensing up, and the urogenital reflex (See Simon, 2019). I have also attempted to fake contractions, tense hard during orgasm, dance around, and manipulate Nicole Prause’s probe without success. The urogenital reflex as evidence of orgasm is distinguishable.
Hartman’s acknowledgment of mismatched orgasm indicators highlights a critical flaw: relying on heart rate alone risks misidentifying orgasms entirely. Similar patterns in other subjects are unreliable evidence, as Prause’s research (Covert, 2017; Weiss, 2018) shows that several women reporting double- and triple-digit multiple orgasms lack the urogenital reflex, suggesting misidentification of sensations like tension-release as orgasms.
If the 134-orgasm claim were true, it would entail ~1,340 contractions, a phenomenon requiring extraordinary evidence. For 134 orgasms to occur within a 50-60 minute period would require extremely brief orgasmic events and minimal recovery intervals. The relationship between orgasm duration and inter-orgasm interval creates physical constraints that further challenge the credibility of the claim. For such a record, it’s advantageous to minimize the length of orgasms and shorten the time between orgasms. The longer the orgasm, the less time in between orgasms there is. The shorter the orgasm, the more time in between orgasms there is.
The Male Record of 16 Heartbeat Peaks
The researchers used the same heartbeat criterion for male participants, rendering the 16-orgasm male record equally likely to be a methodological artifact:
“While researching, our next thought was this: Since women are singularly and continuously multi-orgasmic and male and female genitalia develop from the same embryonic tissue, was it not possible that men could also be multi-orgasmic? Physiologists and other experts we consulted with said no because a man ejaculates when he has orgasm —a finite amount of ejaculate puts a limit on number of orgasms. Mrs. Fithian felt that did not settle the matter since male and female function were so much alike and came from the same embryonic tissue; it seemed unlikely they would be so different in regard to multiple orgasms. Several things then happened at approximately the same time. About 1970 a newspaper article said that males taking the drug Mellaril had retarded ejaculation. We encountered two atypical clients in therapy; one had ejaculation without having orgasm, and the other had the sensation of orgasm but didn’t ejaculate. It became obvious that ejaculation and orgasm were not the same thing, and that you could then have one without the other. It stood to reason that males could be multi-orgasmic just as females were. The subsequent ten years of research and working with more clients with these problems have shown this to be true. We have also found, in reviewing early literature, various references to Kinsey’s work and his findings on the separation of orgasm from ejaculation. In comparing male function to that of the female the following records can be compared with the previous female patterns. The more typical male pattern of orgasm is the single orgasm, just as it is in females. In those males who are multi-orgasmic, various patterns emerge just as they did in the female. The following male record shows a series of discrete male orgasms. With this particular subject, ejaculation did not occur at each orgasm, although ejaculation may occur with each orgasm or some orgasms and not others, depending upon the research subject. As you can see, the multi-orgasmic male patterns are similar to that of the female. We know much more about female responses since we have so many more records of female orgasms to study, and multi-orgasmic male responses are fewer in number. We do have a sufficient quantity of records to realize that multi-orgasms are more common than has generally been considered. The fact that multiple orgasms are learned also makes them teachable” (Hartman & Fithian, 1984, p. 163-165)
The lower number could be due less effort being needed to orgasm for the male participant, or simply the male participant having a lower heart rate. It is unclear, as few details are included. Because this sample of males could have included those who have mastered techniques popularized by Robbin and Jensen (1978) like start-stop edging and kegels, it is also important that males be assessed by rectal probe to see if the threshold for the urogenital reflex is met each time. The urogenital reflex would indicate either orgasm or, more rarely, non-refractory high-plateau phase evocations of this urogenital reflex as seen in Robbin and Jensen (1978).
While one might assume the male data is reliable due to ejaculation’s strong correlation with orgasm (excluding non-refractory ejaculatory responses; see Kothari, 1989; Reddit’s r/ruinedorgasmsplus), Hartman and Fithian specifically sought males capable of non-ejaculatory responses. The male data cannot be trusted as evidence of orgasm nor 16 evocations of the urogenital reflex in an hour. Although Prause found no such non-concordance in males (in press; see Covert, 2017; Weiss, 2018), some men on Reddit (e.g., r/prostateplay, r/Aneros, r/Multiorgasmic) report “multiple orgasms” that are actually other reflexes, responses, or sensory experiences, not orgasms.
Other Claims of Hundreds of Orgasms
The earliest claims of high orgasm counts originate from Kinsey, Pomeroy, and Martin (1948), who infamously cited anecdotal reports from a convicted serial rapist in Table 34, documenting apparent multiple orgasms in males from infancy to early adolescence. While the neural networks for orgasm are present from birth, making orgasm possible at any age, the validity of these reports is questionable due to their unreliable source. Additionally, it remains unclear how inter-orgasm intervals vary before puberty or whether age-related changes occur during development, as implied by Kinsey’s Table 34.
Some case studies using broad definitions of orgasm report hundreds of orgasms per session or hour (e.g., Sayin, 2019; Shtarkshall, Anonymous, & Feldman, 2008), but these rely solely on subjective accounts. Sex technology, such as the Lioness Smart Vibrator, often misinterprets high tension followed by relaxation or movement artifacts as orgasms, erroneously counting double- or triple-digit orgasms without evidence of the urogenital reflex (e.g., r/orgasmiccontractions and r/gayorgasmcontractions). As users share Lioness results, inflated orgasm counts are likely to proliferate.
A recent survey study (Corre, Rapsey, & Wibowo, 2025) found that male participants reported a maximum of 3 to 10 orgasms in a single session, while seven others described “uncountable” orgasms, using terms like “unlimited,” “100+,” “beyond count,” or “lasting over two hours.” Wibowo and Wassersug’s (2016) review of 15 publications on male multiple orgasms did not document such extreme numbers.
In Reddit communities like r/sex, r/multiorgasmic, r/prostateplay, and r/Aneros, many users—myself included—have claimed to experience hundreds of orgasms. These claims often stem from personal definitions of orgasm that disregard neurophysiological criteria. As a member of these communities and a study participant, I, too, mistakenly counted repeated sensations resembling orgasm as actual orgasms, using feeling-based definitions like those of Umit Sayin (2019) and Whipple and Komisaruk (2011). I also applied Robbin and Jensen’s (1978) concept of “non-ejaculatory orgasm,” which involves the urogenital reflex (orgasmic contractions) without refractory inhibition. I categorized these as different “types of orgasms,” subjectively perceiving them as equally or more intense and longer-lasting than actual orgasms. However, subjective feelings do not equate to orgasm. My past use of qualia-based definitions—where peaks of sensation or tension-release instances are labeled as orgasms and categorized by where they are felt—reflects a common but flawed approach likely shared by others in these communities.
Several media reports of individuals with persistent sexual arousal disorder (PSAD)/restless genital syndrome also report hundreds of orgasms per day. However, no clinical validation with rectal probe has even been done involving these individuals. Contrary to popular belief, PGAD neither guarantees multiple orgasms nor necessarily includes orgasmic capability at all—in fact, some individuals with this condition may experience an inability to achieve orgasm (anorgasmia).
In all the examples discussed, it is critical to recognize that the term “orgasm” is often misused to describe heightened sensory processing rather than being reserved for the specific neurophysiological event occurring during activation of the Onuf’s nucleus, the resulting urogenital reflex, and the transition from high neuronal excitation to inhibition. Perhaps in the future, advances in neuroscience will allow orgasm to be defined entirely through neural network codes for biological systems, eliminating the postmodernist language games that conflate orgasm with various other phenomena.
Use of such rectal probe evidence has risk of making many people who pride themselves in proclaimed multiorgasmic ability upset after hearing they are not having multiple orgasms. While there is an increasing emphasis on “lived experience” research and a tendency to adjust conclusions to avoid invalidating individuals’ subjective experiences, we as scientists must be prepared to assert that if an experience lacks support from gold-standard evidence, it cannot be classified as an orgasm. A well-known example is found in Bohlen et al. (1982), where a female participant reported experiencing an orgasm but displayed no corresponding pelvic contractions. The authors labeled this a “type of orgasm,” possibly to avoid dismissing or invalidating the single participant’s experience. This approach stands in contrast to researchers like Nicole Prause, who prioritize identifying and understanding physiological events rather than relying on individuals’ subjective interpretations. Bohlen et al. (1982) may have hesitated to conclude that these experiences were not orgasms, a stance that could have major implications. Taking a firmer position might have reclassified many women previously considered “functional” as “dysfunctional,” or, in Freudian terminology, “frigid.”
While it is common for individuals to believe they can define “what orgasm means to them,” as sometimes suggested by sex therapists or “sexperts,” this perspective is rooted in postmodernist language and conceptual play rather than in neurophysiological evidence. Just because an experience feels affirming or pleasurable does not mean it aligns with scientific reality. This is not to diminish the profundity, pleasure, or personal significance of such experiences, but based on the overwhelming body of evidence, they do not meet the criteria for what constitutes an orgasm.
New Evidence for Male and Female Multi-Orgasm Records with Binary Contraction Analysis of Adult Content
Several porn videos have claims of double/triple-digit orgasms in their titles. My study (MultipleOs, 2024) analyzed thousands of amateur videos using binary contraction analysis, documenting maximum orgasms observed: 6 female/7 male within 15 minutes, with no higher counts found. This suggests the actual record falls well below the reported 134 orgasms/hour. However, 16 evocations could be achieved with similar intervals between events.
Binary contraction analysis converts orgasmic contraction videos into quantifiable data non-invasively. Researchers watch slowed down, single-shot pelvic floor videos, marking contractions during claimed orgasms as "1" and non-contractions as "0" in Excel, aligned with timestamps. This enables analysis of contraction length, interval patterns, and urogenital reflex characteristics. Examples are viewable on Reddit's r/orgasmiccontractions and r/gayorgasmcontractions.
The binary contraction analysis revealed no evidence of continuity, with a 39-second break between events in the shortest instance increasing to 99.5 seconds, suggesting increased inhibition in the reflex or desensitization of excitatory inputs. "Continuous multiple orgasms" as described by Hartman and Fithian is physiologically impossible since orgasm is a neurophysiologically discrete event. Even orgasms occurring seconds apart remain separate events, with any perception of "continuity" being illusory. All reflexes in both male and female neurophysiology require some refractory period, ensuring their discrete nature. The concept of "continuous orgasm" likely describes the perception of sensory dynamics and sustained elevated heart rate (≥120 BPM) rather than a distinct orgasm type or variation. Individuals may have experienced repeated intense stimulation-relaxation cycles, accounting for discreteness, while the perception of "continuousness" may result from sustained stimulation intensity, particularly with vibrating sex toys which female participants used more frequently. Sensory perception can also persist and fluctuate over time. Notably, no documentation specifies the stimulation methods used.
The binary contraction analysis provides the strongest evidence of multiple orgasms in both literature and adult content. The burst pattern of the urogenital reflex can also occur in high plateau phase documented in males (Robbins & Jensen, 1978) and is also featured in some female edging content. It's possible some of the instances in the binary contraction analysis are not true orgasms but rather high plateau phase evocations from edging, the anocutaneous reflex, or Kegel-induced spasms, particularly since one female’s contractions lasted only 1.75 seconds. Some of these responses could have also been deliberately simulated. Rectal probe would allow better differentiation.
Notably, many male videos weren't included due to not showing the anus despite visible ejaculations. Reddit's r/ruinedorgasmsplus shows some males having back-to-back-to-back non-refractory ejaculations in a single shot, unedited video in under a minute. These non-refractory ejaculations usually occur with the urogenital reflex. Some female videos show 2 evocations of the urogenital reflex within a minute, but no evidence supports claims of hour-long multiple orgasms across thousands of videos. Female videos claiming dozens or hundreds of orgasms often lack visible anal contractions due to camera angle, making verification impossible. True record numbers likely align closer with binary contraction analysis results. Further research is needed to determine actual potential across various timeframes (10, 30, 60, 120+ minutes).
Conclusion
Hartman and Fithian’s methodology, particularly in later years, relied exclusively on heart rate as an indicator—a measure that can be easily affected by unrelated factors—likely leading to this inflated “record” as a methodological artifact. Our FitBits and heart rate monitors should be used to study heart rate during sexual activity and not evidence orgasm. Similarly, the male record of 16 orgasms in one hour, based on the same heart rate criteria, is equally suspect. The researchers’ classifications of multiorgasmic experiences—termed “multiorgasmic discrete” and “multiorgasmic continuous”—are more accurately descriptions of autonomic nervous system dynamics rather than distinct types of orgasms. Consequently, these typologies should be discarded in favor of more precise and less ambiguous measurements, such as rhythmic pelvic floor contractions associated with the urogenital reflex, as measured by an anal probe.
Hartman and Fithian (1984) performed most of their studies in the 1970s, likely before any reliable research probe, such as one of Bohlen et al. (1978) was made. The researchers used what they had at the time technology-wise. Hartman and Fithian were correct about many areas of physiology, including the similarity in female and male response. It is not the state of their technology I am criticizing nor their attempts to use such technology, but their later sole reliance on heartbeat and, even more so, our contemporary trust placed in their findings like their unvalidated claim of 134 orgasms in an hour, which appears highly likely to be an artifact rather than a finding of their studies. Researchers should stop citing their apparent record in their work. If anything, they should be cited as an example of why heartbeat alone is a poor indicator that orgasm occurred like how statistic professors use Kinsey interview methods as a teaching lesson for how not to do a sample.
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