Why Sex Feels So Amazing…The Answer Is Surprisingly Straightforward

Chances are you don't need convincing that sex feels amazing. It's thrilling, enjoyable, and a genuinely great way to unwind.

But do you actually know the mechanics behind why it feels so good? There's a real mix of scientific and emotional explanations here. If you've ever marveled at how lucky we are to have something this pleasurable, you're in the right place. We dug into the science and surveyed hundreds of readers on what makes sex feel good for them personally.

What Makes Sex Feel So Good?

Here are 13 reasons sex feels so incredible.

1. Our Biology Wires Us To Pursue It

Why does sex feel so good in the first place? From an evolutionary standpoint, it makes total sense — pleasurable sex keeps the species going. But that's far from the whole story, since we clearly keep having sex even when pregnancy isn't the goal. Sex also bonds partners, relieves stress, serves as self-expression, and is simply enjoyable in its own right.

Even when people aren't having sex, thinking about it is common — sex is woven into our biology as deeply as eating is. Brain regions including the amygdala, along with the frontal, parietal, and temporal lobes, drive that desire for sex [1]. Once sex happens, amygdala activity settles back down until desire builds again.

2. Dopamine Gets Released

Dopamine plays a starring role in the brain's reward system, driving feelings of pleasure [2]. It's also tied to feelings of love and lust — more on how men fall in love here. Early-stage romance floods your brain with dopamine, producing that exhilarating rush. That dopamine spike, whether triggered by love, lust, or something else, resembles the neurological effect of cocaine [3, 4].

Novelty is dopamine's favorite trigger, which is part of why new relationships feel so electric. Trying new things together can keep those dopamine levels elevated even later on — one more piece of why sex feels so satisfying.

3. Norepinephrine Joins In

Norepinephrine works alongside dopamine, driving that giddy, euphoric feeling and the racing heartbeat that can make it hard to fall asleep afterward. As a neurotransmitter, it also contributes to blood vessel dilation [5], something we'll circle back to shortly.

4. Oxytocin Floods In

Oxytocin — the so-called hug hormone, or cuddle hormone — spikes measurably during ejaculation [6]. That's part of why ejaculation itself feels so good. It fosters closeness and a desire to bond with your partner, and works both ways — it also makes him want to stick around. It can bring on a sense of calm and security too [3], possibly explaining why men doze off so quickly post-sex.

Oxytocin rarely acts alone. Vasopressin, a structurally similar hormone, releases after orgasm and reinforces attachment further [7]. Studies on prairie voles and other rodents suggest vasopressin may matter more for male bonding while oxytocin dominates for females — a pattern that may translate to humans too [8, 9].

5. Serotonin Enters The Mix

Serotonin, a mood-lifting neurotransmitter, shows up during arousal. It counteracts some of norepinephrine's stimulating effects [10], and while it's involved in both arousal and orgasm, it can also complicate reaching either [10]. Combined with other factors, serotonin can trigger either constriction or dilation of blood vessels [11], and dilation specifically may heighten genital sensitivity to touch [12] — yet another reason behind why sex feels so good.

Once that serotonin surge fades, the resulting drop can contribute to feelings of depression [13].

This is part of why antidepressants that boost or mimic serotonin (SSRIs) are prescribed for depression [14]. Ironically, those same SSRIs frequently cause sexual side effects, including reduced libido and erectile dysfunction [15, 16]. Women taking SSRIs may also notice vaginal dryness [17].

6. Orgasm Triggers Endorphins

Endorphins block pain signals in the brain and also surface during moments of pleasure [18]. They show up after intense exercise, during laughter, and during orgasm [19]. These are the same chemicals behind "runner's high," and they're a big part of why orgasm feels so good — plus why post-sex emotional glow is so common.

More than 6% of our survey respondents specifically credited sex with lifting their mood, often alongside relaxation and stress relief. And these positive feelings aren't necessarily limited to feelings toward a partner. One man put it this way:

Sex gives me a feeling of deep happiness, reduces stress, helps me feel more positive toward everyone, and helps me tackle "life's challenges"

On top of that, endorphins act as natural painkillers — meaning sex might genuinely help knock out a headache!

By the way, if orgasm has been elusive lately, learn how to orgasm more consistently.

7. …Plus Prolactin

Prolactin is often called the satisfaction hormone [20, 21]. It spikes right after orgasm, producing that classic post-orgasm, cigarette-worthy contentment. It may also tie into breast size. Monkey studies suggest prolactin might be connected to cuddling behavior as well [22].

Prolactin may also factor into ovulation, hinting that female orgasm could carry a reproductive function [23].

8. Arousal Raises Your Pain Tolerance

Heightened sexual stimulation can dial down pain sensitivity in women [24]. One study found that vaginal stimulation alone raised women's pain tolerance by 40 percent [25]. The same research found that following orgasm, the pain detection threshold jumped by a striking 75 percent [25]! Thanks to this natural painkilling effect of arousal and orgasm, discomfort during sex may register, but far less intensely — and without feeling unpleasant.

This may explain part of why sex can hurt when foreplay and arousal are rushed or skipped.

Author Jay Wiseman, in his beginner's kink guide Sm 101: A Realistic Introduction, notes that greater erotic arousal makes someone more receptive to — and tolerant of — erotic pain [26 p 170]. In practical terms: a more aroused partner can handle a firmer spank than one who isn't there yet.

Read more about erotic spanking.

9. Genitals Contain Dense Nerve Networks

Setting aside emotional or mental factors entirely, pure physical pleasure largely traces back to the thousands of nerve fibers packed into the clitoris [27].

The clitoris is structurally the counterpart to the penis [28], explaining why it becomes erect when aroused. It appears to hold even more nerve endings than the penis [30], and more than the vagina too [31, 32].

Both organs extend well beneath the visible surface. The larger internal clitoral structure actually wraps around the vagina [33], and it's responsible for the G-spot sensation. Find your G Spot.

Nearly half the men in our survey pointed to sensation and physical pleasure as the reason sex feels good, with several specifically describing what makes a vagina feel great — this was men's most cited reason, mentioned more than twice as often as the runner-up (partner's pleasure). Those numbers might even understate things, since some respondents may have considered it too obvious to mention.

In fact, over 11% of men said sex always feels good simply because of how the vagina feels.

By comparison, 31% of women cited physical pleasure as a reason sex feels good. Both men and women highlighted the physical release of orgasm as a major contributor to sex feeling great.

10. Inhibitions Can Melt Away

None of the men in our survey brought this up, but several women did. Sex offers a chance to fully let go, drop your guard, and simply be yourself. Women described real enjoyment in feeling free during sex, without needing to filter or perform.

11. Sex Relieves Stress

Why does sex feel so good? Stress relief is one answer. We all know excessive stress takes a toll. Left unaddressed, chronic stress becomes distress — capable of triggering headaches, anxiety, skin issues, high blood pressure, stomach trouble, sleep disruption, and chest pain, while also weakening your resistance to illness.

Some people cope with stress by overeating, smoking, drinking, or using drugs — none of which actually resolve it. Sex, though, genuinely can. The catch is that high stress often kills the desire for sex in the first place, and going without sex for too long only compounds the stress. It's a frustrating loop.

Breaking that cycle by resuming regular sex tends to bring real physical payoffs — fewer illnesses, better sleep, less anxiety, and lower blood pressure.

So next time stress hits, try this: have sex, even if you're not initially in the mood. Start small — cuddling, touching, holding hands. That can lead to kissing, and kissing can lead to sex. More sex tends to mean less stress, which in turn tends to build more desire for, you guessed it, more sex.

12. Sex Creates Intimacy With Your Partner

A solid relationship depends on intimacy, and sex is one avenue for building it with your partner. Intimacy is typically reserved for one person specifically, forming the bond between you two. Within a committed relationship, sex is a primary way that intimacy gets expressed.

Many women specifically noted how satisfying penetration felt, describing a sense of being both filled and fulfilled.

Even in a one-night stand — more on one-night stands — genuine intimacy is possible. The difference is that the connection likely won't extend beyond that night, even though vulnerability was involved. If being intimate for just one encounter doesn't sit well with you, casual sex may not be your thing.

13. Your Partner's Pleasure Can Boost Your Own

Sometimes sex feels good simply because you're pleasing someone you care about. Unsurprisingly to our female readers, connection ranked as the single biggest factor in sex feeling good. 45% of women referenced love, intimacy, bonding, connection, or closeness in their responses. Strong sexual connection also tied into great sexual chemistry.

15% of women pointed to weak or absent connection as a cause of unsatisfying sex, and even more said connection was the deciding factor between decent sex and truly great sex.

Perhaps nothing illustrates this better than how women compared sex to masturbation. Many acknowledged that masturbation reliably delivers orgasm faster, given how precisely they can control their own stimulation — yet most described it as merely "a quick fix" offering physical release alone. They still preferred sex with another person and the feeling of a warm body close by.

Watching your partner experience pleasure is a core driver of compersion.

Connection mattered plenty for men too — nearly a third mentioned it, placing it second only to physical pleasure. And plenty of women, in turn, said their own enjoyment grew from knowing their partner was enjoying themselves.

Looking to really please your partner in bed? Try these:

• Focus on the small curve where his lower lip meets his chin. Draw his lower lip into your mouth mid-kiss, then trace that spot with your tongue tip.
• Trace his neck — skip right under the ear, and instead circle just beneath his Adam's apple. Traditional Chinese medicine flags this as an especially sensitive spot.
• Attend to his nipples — they're sensitive too. Circle the outer edge with your tongue, gradually closing in, then flick and gently bite. More tips for nipple stimulation are covered in this article.
• During oral sex, prioritize the tip of his penis. Hold the base steady with your fingers and glide the head across your wet lips like applying lipstick. Take the whole head into your mouth, then return to the lipstick motion. Don't skip the ridge where the head meets the shaft — it's loaded with nerve endings. Flick it rapidly with your tongue tip before returning to broader licking.

14. And Then Some

Neatly cataloging everything that contributes to great sex gets tricky once hundreds of survey respondents weigh in. For instance, 7% of men said sex felt good purely because it's fun, while 7% of women cited feeling desired by their partner as key — something no men mentioned.

Excitement, fun, and passion also came up repeatedly among women. Partner skill and penis size were occasionally noted too, though only a handful of women flagged them as important. Among those responses, complaints leaned toward penises being too large rather than too small — so having a smaller penis needn't be a worry, since many women still find it entirely satisfying.

Related: Big Penis Sex

Men placed weight on partners being genuinely engaged, rather than passive or going through the motions. Both genders similarly cared about spending adequate time on sex and noted reduced enjoyment when tired, not in the mood, or distracted — though men uniquely cited performance anxiety as a detractor, while women were more affected by their menstrual cycle, body image, and pressure to orgasm.

When it came to sex that's not just good but truly great, 25% of men mentioned sex toys, kink like rough sex, role play, or BDSM, or fetish play, while fewer women brought these up. Dirty talk came up frequently as well.

Men valued exploring their sexuality just as much as connecting with a partner, and both wanted variety, regardless of the specific activity. One woman summed it up:

It always feels good, it's better when it's different in some way, position, lighting, sounds, toys, role play. It keeps things from getting stagnant

For women, simply having an orgasm could elevate sex to great, likely because female orgasm often gets treated as a bonus rather than a given. Women also described sex as amazing when multiple orgasms were part of it.

Variety mattered somewhat less to women, ranking about equal with being relaxed, fully aroused, well-lubricated, and with a skilled partner. Only women mentioned anal play as an enhancer (specifically enjoying anal fingering), and some cited location as a factor, though without elaborating on why it mattered.

Interestingly, 2% of both male and female respondents named a dominant man paired with a submissive woman as a factor in great sex — sounds like a good match on that front.

Related: Learn How to Be Submissive and Have Kinkier Sex

When Sex Doesn't Feel Good

Sex isn't always pleasurable — sometimes it actually hurts. Understanding the cause usually makes it fixable, letting you get back to enjoying it. Here are four common culprits behind sex feeling bad:

1. The Wrong Partner

Since connection matters so much to good sex for both women and men, choosing the right partner is essential. What "right" looks like varies by person — if your best sex history involves being in love, prioritizing a serious relationship over casual encounters might serve you better.

You might also want to reconsider one-night stands if they haven't delivered great sex for you. Many women described real benefits from knowing their partner well, and being known in return, when chasing truly great sex. That familiarity keeps couples in sync and ensures both partners get the pleasure they're after. Knowing your partner's preferences — and being able to deliver — can also make you feel powerful and confident.

At minimum, seek a partner who respects you as a full person with real feelings and desires, not an object. Feeling safe and being able to trust your partner matters. They should talk openly with you about sex, never pressure you into anything unwanted, and genuinely prioritize your pleasure.

Survey respondents ranked a giving partner as important to good sex as stress relief itself, while a selfish partner topped the list of what ruins it. Attentiveness specifically came up repeatedly among women describing what makes sex great.

Some people are simply easier to talk to about sex, which tends to make them better partners too. Communication came up frequently among women describing both good and great sex. And partners who audibly or visibly expressed pleasure — through words, sounds, or expressions — were noted by both men and women. Knowing your partner can't hold back a moan makes sex noticeably better.

Find out how to communicate about sex with ease.

2. Insufficient Lubrication

Sometimes natural lubrication just doesn't show up enough, leading to burning or chafing — not pleasant at all. Certain birth control pills, tampon use, or simply timing within your cycle can all play a role. It doesn't mean anything's wrong with you if wetness comes less easily; that varies naturally from woman to woman.

Generally, the body responds to arousal and desire with increased wetness. So insufficient lubrication may just signal insufficient arousal so far.

The fix?

Slow down and build full arousal before penetration, so that penetration itself feels great.

Discover ideas to make yourself wet.

Most people label this "foreplay," though for plenty of women, elements like oral and manual stimulation (fingering) are really the main event. Unsurprisingly, foreplay came up often in reader responses about what makes sex good. Men specifically flagged oral sex as important (get tips in the blow job bible).

Even more tellingly, when asked what makes sex feel bad, 16% cited timing issues — often rushed or skipped foreplay, or sex that felt too brief overall. 5% pointed directly to lubrication issues, and another 8% mentioned pain, some of which likely traces back to dryness and insufficient arousal. Even men who enjoy penetration reported dryness as a real drawback.

For 24% of women, foreplay was the difference between "fine" and truly great sex — likely because it supports both physical and mental arousal, with several specifically citing clitoral stimulation.

Get ideas for clitoral stimulation.

Women also specifically flagged kissing, whether as part of foreplay or continuing during penetration.

If lubrication is consistently an issue, artificial lube is a simple fix, with plenty of silicone- and water-based options to choose from — more on lube here.

Unfortunately, 8% of readers said sex felt bad when they weren't genuinely in the mood but went along with it anyway to satisfy a partner, or because the partner wouldn't accept no. To be clear, you should never feel obligated to have sex you don't want. That said, if you're among the many women with responsive desire (learn more about women's sexual desire), physical stimulation — foreplay, essentially — can actually spark desire even when you didn't start out in the mood [34, 35, 36]. Skipping it altogether often forecloses any chance of enjoyment.

Foreplay isn't limited to physical acts right before penetration, either — a lingering morning kiss and touch, or flirty texts throughout the day, both count and help build sexual tension.

2. Missing Clitoral Stimulation

Our culture tends to define "sex" narrowly as penis-in-vagina intercourse, yet most women need, or strongly prefer, clitoral stimulation to feel pleasure and reach orgasm. PIV alone rarely delivers that, unless the clitoris happens to sit especially close to the vaginal opening [37].

So without oral or manual clitoral stimulation, or a toy, from you or your partner, satisfaction may be hard to come by.

Not sure what actually works for you? Masturbation is the way to find out.

Related: How to Masturbate for Women

Once you know, you can guide your partner accordingly next time — mutual masturbation is another option worth trying together.

3. Past Trauma

PTSD isn't exclusive to combat veterans, though it's certainly common among them. Anyone who's experienced a traumatic situation can develop it — including survivors of sexual abuse. It can even arise from a relationship someone expected to last forever suddenly ending, regardless of the reason. Without proper support, people carrying this kind of trauma often struggle to build a healthy, loving relationship, which inevitably affects their sex life too.

4. An Underlying Condition

If sex is painful even with adequate lubrication, an underlying condition might be responsible. Painful sex has a clinical name: dyspareunia [38]. Here are a few common causes.

• Vaginismus – involuntary tightening or spasming of vaginal muscles the moment something tries to enter, whether that's a penis, finger, or tampon [39]. Penetration becomes painful as a result. It's often linked to fear or anxiety around sex, though infection can also trigger it. A doctor can confirm a vaginismus diagnosis and may suggest physical therapy or dilators [40].
• Endometriosis – occurs when uterine tissue grows outside the uterus [41, 42].
• A microperforate hymen – covers most of the vaginal opening except for a small central gap, which can block fingers, a penis, or a tampon from entering [43], while an imperforate hymen seals the opening completely [44, 45, 46].

Beyond these conditions, certain medical procedures can also dampen sexual enjoyment. A LEEP procedure, for example, removes precancerous or cancerous cervical cells but may reduce sexual satisfaction afterward [47]. Desire and orgasm can be affected too [48].

5. Medications

While medication resolves plenty of issues, side effects can create new ones. Sexual side effects are quite common.

• Decongestants and antihistamines can dry things out.
• Blood pressure medications can do the same, plus dampen overall desire.
• Antidepressants can lower libido while also making sex and orgasm less enjoyable.

Review potential side effects with your doctor and discuss alternatives if sex has stopped feeling good.

6. Your Mind Has Checked Out

For 9% of women, sex suffered whenever their mind wandered elsewhere. Outside stress and distracting thoughts crowding in left little mental space for actually being present. It's no wonder so many women treasure the ability to fully let go during sex — and many wished the same for their partners.

6. Sex Was Framed As Something Shameful Growing Up

Parents sometimes teach kids that sex is dirty or shameful, often hoping to prevent unprotected teen sex and pregnancy. But that message can leave lasting psychological scars. Women raised this way often carry shame around their own sexuality into adulthood, sometimes triggering depression or eroded self-esteem. Counseling can help unwind this distorted self-view, opening the door to genuine fulfillment and enjoyment.

Sex is supposed to feel good. Now armed with the reasons behind why it does, you can appreciate an activity you already love on a whole new level.

Resources

Several male Redditors weigh in on what sex feels like for them and why a vagina feels great. Here's a similar piece from Metro.

Five men describe amazing sex in their own words for the Good Men Project.

Frequently Asked Questions

FAQ #1 – What should I do if sex doesn't feel good?

Confirm you're fully aroused first, and add lube if needed. Lean into activities that stimulate the clitoris, and don't rush the experience.

Address relationship friction, or seek a more attentive, compatible partner. Rule out medical causes with your doctor.

FAQ #2 – Can sex be improved?

Sex that's merely fine can become great with more foreplay and an attentive partner. Sex toys or kink can add spark. Continuing to explore with the same partner builds mutual understanding of preferences over time. Talking openly about what you want in bed matters too.

FAQ #3 – Is it normal for sex and masturbation to both feel good, just differently?

Completely normal. Our survey respondents generally viewed masturbation as excellent — often producing faster or stronger orgasms — and more liberating since there's no partner's pleasure to manage or preparation required. Even so, most still preferred partnered sex overall.

FAQ #4 – Does sex feel identical for everyone?

Our survey found that not everyone experiences sex as especially pleasurable. Even among those who did, the reasons varied widely, and preferences for specific activities and factors differed from person to person.

Add in individual differences in bodies and biology, and it's clear sex feels different for everyone. Measuring that precisely would be fascinating, but each of us is limited to our own experience of it.

October 31, 2020