I'm reading this two different ways. I don't know which way it was intended but I'll try to answer both possible meanings.
Please note that the responses are quite opposite.
If you mean "when your mind is relaxed and thoughts of a romantic interlude are swirling through your subconscious like light wisps of smoke, leaving no proof of it ever having been there but there's some kind of lingering presence that makes you wonder...what do you seek out that will help you determine (with the intent of pushing you ever so close to) a slow & passionate, languid & soft encounter?"
I look for something themed around a forbidden love affair. One that has our two lovers kept apart by their lives, but who steal precious moments to unite. The meetings range from patient and measured to furious and with wreckless abandon, but always with the same focus...their need to be together. I find that sharing their secret, something nobody around them is aware of, is sexually intoxicating.
If, however, you are saying "when your body is taut with sexual tension and your mind is buzzing with ravenous thoughts; when your own touch sends jolts of electricity coursing through veins; when your senses are in overdrive, and you can feel your skin flush, your musky scent scintilating and each beat of your rushing heart can be felt in the throb of your sexual core...what does the sexual beast that's surfacing cry out for? What will satisfy it? What does it need to see?"
There's this one scene, where a woman is very rude to two well-meaning gentlemen, and they don't take kindly to it. She obviously needs to be taught the meaning of respect. And they start teaching her to say "please" and "thank you" by teasing her pussy with their hands and mouths to the point where she can't possibly stop. Then they show her the rewards of respectfully begging for their large, drooling cocks.
There are times when I call her breasts to mind. She's holding them in her warm hands, gently rolling her hardening nipples between her thumb & forefinger. By the time I see her areola wrinkling up...I'm beyond the point of stopping and cumming hard.
Does that answer the question? Sorry if I kinda went off on a tangent. *blush*