Almost every "spice up your sex life" article is generic. The research is more useful. Studies of "self-expansion" in long-term couples (Aron and colleagues; Muise and colleagues, 2019) have consistently found that novel, exciting shared activities, sexual and otherwise, raise both desire and relationship satisfaction. What works in practice follows from this: vary one element per session (a new toy, a new room, a new sequence, a new register of touch); have the conversation you have not had about what each of you wants more of; protect the environment (warm room, phones away); and deliberately go slower than feels natural. What rarely works: buying everything at once, "trying everything" as a plan, or treating it as a single dramatic gesture. This is the plain UK guide.
Spicing up sex, sex life rut, reigniting desire
"Spicing up your sex life", "getting out of a sex rut" and "reigniting desire" all describe the same conversation. The framing matters less than the practice: a long-term sex life that has settled into a routine, and the wish to widen it again. The mechanism in the research is novelty plus communication, not a specific technique.
Why this is the most clichéd category in adult content
Most "spice up your sex life" articles share three problems: they assume couples want a fixed list of activities; they recommend buying a kit before doing anything else; and they treat the goal as variety for its own sake. The research is consistently somewhere else. Novelty matters because of what it does, raises desire, deepens shared experience, reopens the conversation about what you both want, not because of which specific activity is novel.
What actually changes a long-term sex life
Three findings worth carrying into any decision:
- Self-expansion works. Aron and colleagues' long-running research on self-expansion in romantic relationships (and Muise et al., 2019) has repeatedly found that couples who engage in novel, exciting shared activities together, sexual or not, report higher sexual desire and greater relationship satisfaction than those who do not. The mechanism is the shared novelty itself.
- Communication is the underrated lever. Most couples who have settled into a routine have not had an explicit conversation about it in months or years. The conversation often reveals interests neither knew the other was carrying.
- Closeness and novelty are not opposites. The cliché that long-term relationships exchange passion for security is not quite right; the research suggests they can coexist when novelty is deliberately reintroduced.
The four levers
1. Novelty (one new element per session)
The variety is the active ingredient. One new thing at a time: a new toy, a new position, a new room, a new piece of foreplay, a new register of touch. The Aron self-expansion data is clear that small repeated novelty outperforms occasional big novelty.
Specific moves: a wand vibrator brought into a session that has not had one (see how to use a vibrator UK), a blindfold introducing sensation play (see sensation play with everyday objects), a body-safe massage candle (see scent of a scene), a sex game that removes the "who suggests it" awkwardness (see sex games for couples UK).
2. Communication (the conversation neither of you is having)
The single highest-leverage move. Two prompts to start with:
- "What have you been thinking about that we have not tried?" Curiosity-first; lets the partner answer without pressure.
- "What have we stopped doing that used to work?" The recovery move; named together, the things that used to land come back faster.
Have these in a relaxed setting, not the bedroom and not after sex; both are loaded with the wrong cues. See how to talk about kink for the broader version.
3. Environment
The room shapes the encounter more than the kit does. Warm temperature (cold rooms shorten everything), low or candle light (overhead lighting is a foreplay killer), phones away, no background TV. Five minutes spent setting the room produces more change than any specific technique.
4. Deliberate slow
Long-term couples can read each other's cues, which means they can also miss the slower signals. Holding a kiss for longer than usual, pausing before the next move, lingering in places that the routine has stopped lingering in. Sustained slow attention is the part of sex most likely to be missing in established relationships and most likely to change what happens. See foreplay ideas UK.
What changes a long-term sex life, at a glance
| Lever | Cost / effort | What it changes |
|---|---|---|
| One new toy per session | £15 to £150 depending on tier | Direct novelty; brings shared exploration back |
| The "what have you been thinking about" conversation | Free; one warm conversation | Reveals interests neither knew the other was carrying |
| A weekend away with no plans | £80 to £300 | Self-expansion + environment + uninterrupted time |
| A new room or position | Free | Breaks the routine spatial cues |
| A sex game (cards / dice / board) | £8 to £40 | Permission structure; removes "who suggests it" awkwardness |
| Deliberate slow + phones away | Free | Restores attention; the cheapest big change |
What rarely works
- Buying everything at once. A £200 box of unfamiliar gear is a project, not a session. One new piece at a time, deliberately introduced.
- "Trying everything" as a plan. Variety for its own sake is exhausting and rarely produces the build that novelty in service of attention does.
- Single dramatic gestures. The weekend in Paris, the £400 toy, the special night, these can be wonderful but they do not change the routine that follows; the smaller repeated novelty in the Aron data outperforms them.
- Skipping the conversation. Buying gear without talking about it is the most common reason new pieces sit in a drawer.
- Treating it as a problem to solve. The frame "we have a sex problem" generates anxiety; "we want to explore more together" generates curiosity.
The conversation that makes it stick
Once a few new elements have been introduced, the conversation that turns it into a practice rather than a one-off is the check-in: a few weeks in, in a relaxed setting, asking what worked, what surprised either of you, and what to try next. Couples who revisit at regular intervals build a shared vocabulary over months; couples who have one conversation and never return to it usually find the topic dies. See reigniting after a quiet patch and midlife desire: a quiet conversation for the demographic-specific versions of this work.
Common mistakes
- Treating "spice it up" as something one partner does to the other. It is mutual exploration; one-sided efforts rarely land.
- Buying the kit before having the conversation. Gear bought without talking sits in drawers.
- Going for variety over attention. The novelty is in service of attention, not a substitute for it.
- Skipping the environmental fixes because they sound boring. Warm room, phones away, low light: the cheapest changes do the most.
- Not protecting the practice once it is working. The risk is sliding back into routine; the check-in conversation keeps it alive.
Related reading
- Reigniting after a quiet patch
- Foreplay ideas UK
- Dirty talk for couples UK
- Sex games for couples UK
- Date night ideas for the considered curious
- Midlife desire: a quiet conversation
- Browse couples kits
Frequently asked
- What actually works to spice up a long-term sex life?
- The research consistently points to four things: novelty (one new element per session, not five at once), communication (the conversation you have not had about what each of you wants more of), environment (warm room, phones away, low light), and deliberate slow. The Aron self-expansion research has shown small repeated novelty outperforms occasional big novelty.
- How do I bring this up with my partner?
- In a relaxed setting outside the bedroom, with two prompts: "what have you been thinking about that we have not tried?" and "what have we stopped doing that used to work?" Curiosity-first language opens the conversation; commitment language closes it. See how to talk about kink.
- What is the cheapest single thing that changes a long-term sex life?
- Phones away and a warm room with low light. The environmental fixes sound unglamorous and they do more than any specific technique. The second-cheapest: a £15 silk-lined blindfold, which heightens every other sensation.
- Do new sex toys actually help?
- Yes, when introduced one at a time with the conversation that should accompany them, not as a £200 unsupervised kit. A new vibrator or sensation tool in a session that has not had one provides the novelty the research suggests matters. Buying a box of unfamiliar gear without talking about it is the most common reason new pieces sit in drawers.
- How often should we try something new?
- Small novelty more often beats big novelty occasionally, per the Aron self-expansion data. A new element each session, even small ones (a different position, a new piece of foreplay, a new register of touch), produces more change than a once-a-year dramatic gesture.
- What rarely works?
- Buying everything at once, treating variety as the goal rather than attention, single dramatic gestures (the £400 toy, the weekend in Paris) that do not change the routine that follows, skipping the conversation, and framing the situation as a problem to solve rather than an exploration to widen. The framing alone often changes the outcome.
Sources & further reading
- Relate, Relationship and intimacy support, Relate UK
- COSRT, UK Sexual and Relationship Therapists, COSRT
- Self-expanding activities promote desire and satisfaction in relationships, Muise et al. (2019)
- Brook, Sex and pleasure, Brook Advisory
Filed under Couples
← Back to the Guides
