Nobody wants to admit it, but after years with the same person, desire often shifts. Does long term mean low desire? Is that normal? Is it a problem? Or is it just what long-term actually looks like?
On the latest episode of On the Contrary, Kash the Sexologist, Luis, Rico, and Taz go somewhere a lot of couples may think about but rarely say out loud: what really happens to intimacy when the newness wears off?
Does desire naturally decline in long-term relationships? And if you find yourself curious about something different, does that make you a bad partner, or just an honest human being?
Rico puts it bluntly: “It gets boring. Six years, five years, 10 years in. That’s a long stretch for the same six moves, four moves… If we have that sexual chemistry it’s still going to be fulfilling enough for my sexual drive.”
Sexual Chemistry vs. Sexual Alignment
For Kash, the conversation gets more complicated when you separate sexual chemistry from sexual alignment. “I don’t think chemistry is as important as alignment is. Sexual alignment is more important than sexual chemistry… You’re never the same person. As you evolve, evolution says you’re going to change over time. That includes your likes and interests sexually.”
Her point is that attraction alone may not be enough to sustain intimacy over the years. People change, and their interests, boundaries, and expectations can change with them. What worked at 20 may not necessarily be what they want at 30 or 40.
Research on long-term relationships supports this idea. Studies suggest that sexual desire can shift as relationships develop, and couples who maintain sexual satisfaction often adapt to changes in their needs and preferences rather than relying solely on the chemistry they experienced at the beginning.
Kash also breaks intimacy down into four areas: physical, mental, emotional, and spiritual. When those areas stop feeling aligned, the relationship can start to feel disconnected even when the attraction is still there.
Is It Normal to Get Curious About Something Different?
The conversation moves into territory that can make even happy couples uncomfortable: curiosity.
Wanting to try something different doesn’t necessarily mean you want to leave your relationship. Sometimes, it simply means you’re changing and discovering new things about yourself.
But the panel makes an important distinction between having a thought and acting on it. Luis draws a line between looking, liking, and actually taking things further, raising a bigger question about what commitment looks like when curiosity enters the picture.
Research backs this up. Studies have found that sexual desire can change over time in long-term relationships as novelty fades, while sexual curiosity and fantasies are also common, including among people in committed relationships. What matters most is what someone chooses to do with that curiosity.
Because in a long-term relationship, the question may not be whether you’ll ever notice someone or wonder about something different. It may be what you choose to do with that curiosity.
When Sex Drops From Every Day to Once a Month
A caller brings a situation that changes the tone of the conversation. After nine years together, she says her relationship went from having sex every day to being intimate roughly once a month.
So what happened? The panel doesn’t have one clear answer. Stress, routine, emotional distance, and changing needs all enter the conversation. But beneath all of those possibilities is a bigger issue: are the two people actually talking about what has changed?
The panel is divided over what she should do next, but they agree on something important: ignoring the problem isn’t likely to make it disappear. When intimacy changes that dramatically, the silence surrounding it can become just as significant as the lack of sex itself.
What Actually Keeps Desire Alive Long Term
By the end of the episode, the conversation comes back to a simple truth: desire in a long-term relationship doesn’t necessarily survive on autopilot.
People change. Their needs change. Their interests change. And sometimes, the relationship has to change with them. That doesn’t mean every relationship is destined to become boring, or that a dip in desire automatically signals the end. It means couples may have to keep choosing curiosity, communication, honesty, and alignment if they want intimacy to remain fulfilling.
Sex can get boring without connection. But perhaps the bigger question isn’t whether desire will ever change. It’s whether both people are willing to keep investing in each other when it does.
And that idea of outgrowing what once worked doesn’t only apply to romantic relationships. Sometimes, people grow in ways that affect their friendships, too, and what once felt like a perfect fit may no longer feel the same.
