In a study of more than two thousand women, participants whose solo and partnered stimulation methods were more closely aligned reported better orgasmic outcomes with a partner. Another study found that orgasmic pleasure could be higher on average with a partner, although women with greater difficulty reaching orgasm often found masturbation equally or more satisfying.
Those findings are not contradictory. Orgasm may be easier alone because of control, familiar technique, and the absence of social pressure. Partnered sex may add intimacy, desirability, and emotional intensity. “Easier” and “more pleasurable” are not the same measure.
The limitations matter: much of this evidence comes from women’s self-reports and does not represent every gender, body, or relationship. An association between practices and orgasm does not always prove that one caused the other.
Still, the broader point is useful: the body does not have to respond identically across contexts. If solo experience is more reliable, it is not a competitor to a partner; it is a source of information. The question becomes not “What is wrong with me?” but “Which conditions and kinds of stimulation help—and how can some of that knowledge be brought safely into shared experience?”