It's a pretty common trope that women need an "emotional connection" before they have sex with someone.

Often times this "emotional connection" is interpreted to mean "she needs to have strong, developed, and established feelings for the person before she desires to have sex with them."

It's that second sentence I can't say is all that accurate for many women.

"Emotional connection" doesn't have to mean that.

I'll use me for example. I don't need to be deeply in love and having known the man for 4 months before I desire to have sex with him.

What I need is to have experienced mutually flirtatious energy that leads to "a connection with him that triggers emotions of arousal, intrigue, anticipation, joy, feelings of comfort, etc."

A "connection" like that could happen over time -- years, months, weeks, days, hours, minutes, moments.

But for me, that's the "emotional connection."

That's the "chemistry." The "je ne sais quoi." And in some rare instances the "le coup de foudre." (And for many, it's the "beer, wine, and shots" lol)

How do others experience it?

Note: Her desiring to have sex with them doesn't necessarily mean she will jump their bones immediately. Many women are thinking about physical safety, pregnancy, genital safety, physical readiness, reputation, his intentions, her intentions, his expectations, her expectations, etc. I'm discussing her "internal world" in this OP, not her actions. For many women, not all, if she's "jumping bones immediately," she was tipsy or having an off moment in time. And for many women, they don't overly stress about any of the considerations I listed and will enjoy themselves accordingly.