How many paragraphs in can I leave out the gender of my main character

Welcome to the forum, @astro.

 

Thank you @GingerCoffee

 

You mean "too satisfying NOT to indulge "?

 

No, but I had to seriously think about your observation. You can say it either way.

Alone, it was simply too satisfying for a girl to indulge her primal urges. Out here, I was free.​

Indulging the urge was too satisfying to forego. "To forego" is implied. You could also say it was 'too satisfying not to indulge'.

Here's a longer segment:

"Maybe if I didn’t sleep naked I wouldn’t have this dilemma,” I mused.

Alone, it was simply too satisfying for a girl to indulge her primal urges. Out here, I was free. The painful naked plunge into the cold air was nothing, a token fee at most that paid for the joy of being my true self.
​

I may reword the sentence. Like everything I write, if I wait long enough I want to edit it again.

 

Include something about her doing something typically feminine, i.e. Flipping her long hair back from her shoulder.

 

It doesn't. But she reveals her gender when she says in the narrative, "Alone, it was simply too satisfying for a girl to indulge her primal urges. Out here, I was free."

 

Likewise, in Jeanette Winterson's book Written on the Body, the protagonist/narrator's sex is not revealed. You can reveal it early, late, or not at all, according to what works best within the context of the story, and what you can make work as a writer.

 

I agree.... what's to be gained? You could just be circumventing a trail around the subject that's totally not needed.