He drew out the sword from the folds of the muleta and sighted with the same movement and called to the bull, Toro! Toro! and the bull charged and Villalta charged and just for a moment they became one. Villalta became one with the bull and then it was over.
-Paragraph* written by Ernest Hemingway in February, 1923 for The Little Review. Re-published 1925 in In Our Time.

That's about sex. That's not about bullfighting.

He lay there and felt something and then her hand holding him and searching lower and he helped with his hands and then lay back in the dark and did not think at all and only felt the weight and the strangeness inside and she said, “Now you can’t tell who is who can you?

No.
-The Garden of Eden, Hemingway, 1946-1961, published posthumously 1986.

The themes of sexual transference and gender identity blurring during sex were explicit in Eden. To the literary world, even to Hemingway watchers, they were a slap to the face. whisper whisper hemingway didn't want this published whisper whisper. Did we ever know Ernest Hemingway? (No.) The Villalta paragraph is one of the very earliest surviving literary efforts by Hemingway and right there, from as close to the beginning of his writerly life as we can get, are the themes of sexual transference and gender identity blurring. They were there until his death.

*Yes, paragraph. That is all there is. Hemingway had not written anything since December 2, 1922 when a valise containing all of Hemingway's earliest writing was stolen from Hadley Richardson Hemingway when she left it unattended on a train for just the time it took to get a bottle of water. Commissioned by Ezra Pound in February, 1923 Hemingway slowly wrote six new paragraphs. The Villalta was one of them.