A Psychologist Explains Why Your Partner’s ‘Body Count’ Matters (Not Why You Think)

A Psychologist Explains Why Your Partner’s ‘Body Count’ Matters (Not Why You Think)


The question of “body count,” or how many sexual partners someone has had, often dominates the modern dating discourse. Ask around and you’ll hear everything from “it doesn’t matter at all” to “it’s the ultimate dealbreaker.”

On online forums such as TikTok, Instagram and even podcasts, debates about body count often spark heated arguments. These platforms are strewn with moral judgments and gendered stereotypes.

But outside of the noise, what does science really say? Should someone’s sexual history influence whether you date them, commit to them or trust them in the long run?

A recent cross-cultural study, published in Scientific Reports and led by Andrew G. Thomas, Ph.D., sheds important light on these questions. Spanning 11 countries, the research explored how people evaluate a partner’s sexual history, what role timing plays and whether double standards are as strong as online discourse suggests.

The findings reveal that while partner number does matter, it matters in more nuanced, and surprisingly forgiving ways than most people assume.

Here are five key takeaways from the Scientific Reports study, along with advice on how to apply them in your dating life.

1. A Meager Number Alone Never Tells The Whole Story

According to the study, people generally do prefer partners with fewer past partners. Across cultures (whether in Brazil, China, Norway or the UK) interest in long-term commitment tended to decrease as partner numbers increased.

The catch, though, is that numbers alone weren’t the only thing people used to make judgments. What mattered just as much was the “context” of those numbers. That is, how they were distributed across time and whether a person’s behavior had shifted.

As Thomas explained to me in a recent interview, “If someone had a rich, adventurous sexual past but it was long ago, and they now seem to have slowed down and are looking for a long-term relationship, they might be judged more favorably than someone who is currently in a very experimental phase.”

So, if you’re tempted to reduce someone to a number, it might be worth pausing. Instead, ask: “What does this history actually say about where they are now?” A single figure, honestly, is meaningless without the story around it.

2. Timing And Change Shape Perceptions

Two people who both say they’ve had 12 sexual partners may have the number in common. But their patterns may look very different:

  • One person spread those 12 partners across two decades.
  • Another had them all within the past year.

The study found people judged the first scenario far more positively than the second, because recency of activity influences risk perception. Someone who has slowed down over time signals readiness for commitment, whereas someone in a recent burst of activity may seem like they’re still experimenting.

Thomas described this with two patterns:

  • Inertia: If someone has been very active recently, it takes time for perceptions to shift.
  • Diminished returns: Once a person’s history is firmly in the past, pushing it further back doesn’t change much.

If you’re discussing sexual history with a partner, again, don’t just give a number. Provide context. If your lifestyle has shifted, let them know. Maybe you’re more selective now, or you’re seeking stability to explain that change. Be transparent, and more importantly, real. Timing can completely alter how someone interprets your story.

3. The Sexual Double Standard Isn’t As Strong As We Think

Much of the online debate around body count revolves around a sexual double standard. The argument goes: men with many partners are praised, while women with the same history are shamed.

In the study, while people acknowledged that society holds a double standard, when it came to their personal evaluations, those differences largely disappeared. This means that at the level of individual judgment, men and women were judged through the same lens.

“When you ask people what society thinks, they readily describe a sexual double standard. But when you ask individuals what they think and how they would act, those differences largely disappear,” Thomas explains.

So, don’t assume that a partner is applying a harsher standard to you based on your gender. If fairness feels like a concern, bring it into the open. Honest dialogue overtakes silent assumptions.

4. Even The Sexually Open Still Care About History

You might assume that people who are more comfortable with casual sex or “sociosexuality” (as researchers call it) would be unconcerned about partner number. Because, would it not make sense for a rich sexual history to be a big plus if you are looking for non-committed sex?

The findings of the study suggested otherwise. People high in sociosexuality were more tolerant overall, but they still preferred fewer partners over more. They weren’t immune to the same basic preferences that showed up across the board.

For you, this might mean that if you have a more casual dating style, don’t assume your partner will automatically share the same perspective. Even those who enjoy uncommitted sex may care about history in ways that surprise you. Clarify expectations early on so mismatches don’t turn into resentment later.

5. Use Sexual History As A Conversation Starter, Not A Judgment

Don’t blindly follow what you consume off social media. Perhaps the most valuable lesson from this research is that people are more forgiving than online rhetoric would suggest. What mattered most wasn’t the raw number, but the narrative of change and growth behind it.

As Thomas put it: “Our study shows that people are receptive to qualifiers beyond just the raw number. If someone’s priorities have shifted over time, or if their behavior has changed, that context matters.”

This means sexual history doesn’t have to be a threat to your relationship. Instead, it can be an opening to discuss what truly matters. Here are some questions you both might want to explore together.

  • How have your past experiences shaped your values?
  • What have you learned about trust, intimacy and commitment?
  • How do your past choices reflect what you want now?

Don’t be afraid. If the conversation comes up, don’t treat it as a test you have to pass. Treat it as a chance to connect. Share your story honestly, and listen for theirs. Numbers fade in importance when growth and self-awareness take center stage.

A Few Practical Tips For Talking About ‘Body Counts’ With A Partner

If you find yourself navigating this sensitive topic, here are some guidelines to keep the conversation constructive:

  1. Pick the appropriate moment. Conversations about sexual history are best had once trust has been established. Definitely not on the first date, but not so late that it feels like a secret.
  2. Be curious and keep the judgement out. Frame questions as “help me understand” rather than “prove yourself.”
  3. Share the history of the context, not just numbers. Explain how your experiences shaped your growth. This invites empathy rather than defensiveness.
  4. Remember to focus on values, not arithmetic. Use the conversation to explore alignment: What does each of you want in a relationship moving forward?
  5. Do not forget to set clear-cut boundaries. Some people may not want to disclose details, and that’s okay. The key is whether your relationship priorities align now, not whether every past chapter is shared.

Why This Matters More Than You Think

It’s easy to dismiss the whole debate by saying, “It shouldn’t matter.” But ignoring the topic altogether risks oversimplifying how human attraction works. Our instincts evolved to pay attention to cues that once signaled risk. While society has changed, those instincts still nudge our perceptions.

Call it the silver linings or simply the best part of the whole story, but we’re capable of growth and reinterpretation. Just as we’ve learned to view modern cues like money or social status as signals, we can also learn to interpret sexual history in a way that highlights stability, maturity and readiness for commitment.

The online debate around body count tends to be polarizing, shaming and often divorced from reality. If this topic arises in your dating life, resist the urge to reduce someone to a statistic. Instead, approach it with empathy, curiosity and openness to change. Focus less on the number itself and more on what it reveals about someone’s journey toward the present moment.

Because at the end of the day, relationships aren’t built on tallies. They’re built on trust and the willingness to move forward together. As Dr. Thomas reminds us: “People are more open and forgiving than the online discourse would suggest.”

Do your sexual attitudes shape your perception of a partner’s body count? Take the science-backed Brief Sexual Attitudes Scale to find out.



Forbes

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