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The best sex ever
Michael Castleman M.A.
Can polyamorous relationships last? Critics assert that polyam relationships are brief, and smokescreens for infidelity. But a recent study shows many thrive for decades.
Many women suffer pain during sex, but few mention it. Consequently, most men are in the dark. Here's a man's guide to women's sexual pain.
It's not clear how many have multiple orgasms, but they are not as rare as once thought.
A potentially risky type of BDSM, choking, is gaining popularity with young adults. It reflects the growing popularity of BDSM and can be enjoyed safely—but be careful.
Sustained mutual eye-gazing can increase trust, intimacy, and attachment—and enhance sexual pleasure.
The rare truth about sexual fantasies: Few people fantasize about their regular partners. Many dream of forbidden, unconventional, and kinky sex.
Many women don't speak up about the sex they want, for fear of shattering men's supposedly fragile egos. But most men are resilient, and sexual coaching helps.
Older lovers say they want sex around twice a month. But by age 60, intercourse usually becomes problematic. Most older couples dispense with intercourse and embrace "outercourse."
Since 2000, partner sex has declined and celibacy has risen. Experts suggest possible reasons.
Many critics insist that pornography promotes sexism. But studies find that porn viewing is associated with more egalitarian views of women.
Few people appreciate diet's importance in sex. Studies abound showing that for peak sexual function and pleasure with the fewest sex problems, eat lots of fruits and vegetables.
Freud postulated vaginal orgasms. Masters and Johnson insisted all orgasms are clitoral. Feminists agreed. But recent research shows vaginal orgasms happen—because of the clitoris.
Almost all sexual assaults involve alcohol, often a great deal.
Young men are notoriously lusty. But after age 30, the male libido becomes more like women’s, based on feeling desired and emotional connection.
Platitudes say that after the honeymoon, marriage reduces sexual satisfaction. But most studies say marriage boosts satisfaction. A recent study makes sense of this contradiction.
Chronic sleep deprivation is common and hurts libido and sexual function.
Some say it is time to rethink monogamy.
SexSmartFilms is the best source of non-porn, sex education videos. Founder Mark Schoen, Ph.D., has collected more than 600 sexuality videos—all worth watching.
A study timed how long it took 645 women to climax during intercourse. For those who did, times varied. But two-thirds of the women—69 percent—never had orgasms during intercourse.
We're obsessed with what's sexually "normal." But recent research teaches us to expect the unexpected. because we're all sexually unique.
Among men who use condoms, one quarter experience condom-related erection difficulties. Fortunately, the problems can almost always be resolved quickly and easily.
Most sex educators say self-sexing is a personal choice, that it's fine to do it or not to. Actually, solo sex should be promoted. It's the basis of joyous partner lovemaking.
Death by sex? It's rare but possible. These four sex-related activities in particular may prove lethal.
How much time does the world spend on Internet porn? Depending on your perspective, porn is either a black hole that sucks people—mostly men—into oblivion, or a brief coffee break.
A sex therapist offers suggestions for sexual enhancement now, or any time.
This past summer, Somerville, Massachusetts became the first and only U.S. city to expand its domestic partnership ordinance to include multi-partner—polyamorous—groups.
Premature ejaculation is men's #1 sexual complaint. Of the four ways to treat it, only one teaches men to last as long as they'd like, whether that's 10 minutes or two hours.
Attention men, intercourse alone brings surprisingly few women to orgasm. For women’s sexual satisfaction, your penis is less important than your fingers and especially your tongue
Fertility awareness is an easy, scientifically sound way to track women's fertility, and promote or prevent pregnancy. It's a big improvement on calendar rhythm birth control.
Sex comes in three varieties: procreative, relationship-affirming, or recreational. Since Biblical times, one has been very controversial.
Michael Castleman, M.A., is a San Francisco-based journalist. He has written about sexuality for 36 years.
My background is in journalism, reporting on sex research, which I've done for more than 3 decades. As a result, my blog tends to focus on research results and their implications for enhancing lovemaking.