Sun in Scorpio
Sun in Scorpio means you build trust slowly, and by testing it. You share something small, watch what the other person does with it, and decide from there how much more they get.
The Sun is in Scorpio from about October 23 to November 21. The exact changeover moves by a day with the year, so if you were born on an edge, check your year with the sun sign calculator.
The small test
Scorpio is fixed water. Its traditional ruler is Mars and its modern one is Pluto, and you carry a bit of both: the Mars willingness to fight and the Pluto need to know what's underneath. Day to day it looks quieter than the reputation. You ask a lot of questions and answer few. You'd rather hear the bad news straight than be managed. You remember, precisely, who kept a confidence and who passed it on.
None of this is cold. Once someone is in, a Scorpio sun is the friend who turns up at 2am without asking why, who keeps a secret for twenty years, who'll go to war over something done to a person they love.
Pluto twice
There's a generational layer some Scorpios have and others don't. Pluto was in Scorpio from 1984 to 1995, so most Scorpio suns born in those years have their ruling planet in their own sign, in the same stretch of sky as the Sun. That doubles the appetite for the hidden side of things, the true crime, the psychology, the conversation everyone else avoids at dinner. If that's you, read Pluto in Scorpio. Scorpios born in the 2010s have Pluto in Capricorn instead, and their intensity comes out more through ambition and control of their own plans.
The audit nobody signed up for
The honest tension is that the tests are invisible. People fail tests they didn't know they were taking, and you quietly move them a step further out. They feel the chill without knowing what caused it. Over time you end up with very few people inside and a lot of acquaintances wondering what went wrong.
The other cost is that holding on is easier for you than letting go. A hurt from years ago is still filed, with the date. Scorpio suns who are freest have learned to tell someone, once, what the test was.
How your Moon and rising shape it
A Scorpio sun with a Gemini or Sagittarius Moon is lighter on the surface, funny and curious, and the intensity shows up only when something matters. With a Taurus Moon, you're steady and stubborn in equal measure. If your Moon is in Scorpio too, the privacy goes all the way down: see Moon in Scorpio. Scorpio rising gives a watchful, contained first impression, so people sense the depth before you've said a word. With Leo or Libra rising, you seem easy and warm, and only later do people notice how little you've told them.
Questions
Why are Scorpio suns so private?
Because information is how they measure trust. Telling you something is a test, and they'd rather start small than find out the hard way.
Are Scorpio suns jealous?
They're possessive about loyalty more than about people. What stings is not attention elsewhere, but the sense of being kept outside something.
Is Scorpio compatible with Taurus?
They're opposite signs, both fixed. The attraction is strong and so is the stubbornness, and it works when both treat loyalty as non-negotiable.