May offend English to Spanish Art/Literary Poetry & Literature Novel

How would you get across the metaphor of ‘spice in your orgasm’ here?

You go into the hotel and you see the coy yet knowing glint in the eyes of the couple who are just leaving as your step into the red light. There is a matter-of-factness about the man behind the counter who asks if you want "with video or without" and a discreet way when he hands you the keys. You feel like a cliché, following in the footsteps of hundreds of others who have had the same banal thoughts as you, and you wonder who was in the room before you. Later this will be spice in your orgasm, but now it makes you queasy and you fret about whether the sheets are clean.