From the words of Annie Proulx: " Jesus Christ, quit hammerin and get over here. Bedroll's big enough", said Jack in an irritable sleep-clogged voice. It was big enough, warm enough, and in a little while they deepened their intamicy considerably. Ennis ran full-throlle on all roads whether fence mending or money spending, and he wantd none of it when Jack seized his left hand and brought it to his erect c*ck. Ennis jecrked his hand away as though he'd touched fire, got on his knees, unbuckled his belt, shoved his pants down, hauled Jack onto all fours and, with the help of the clear slick and a little spit, entered him, nothing he'd done before but no instruction needed, they went at it in silence except for a few sharp intakes of breath and Jack's choked " gun's goimg off", them out, down , and asleep.
Ennis woke in the red dawn with his pants around his knees, a top grade headache, adn Jack butted against him; without saying anything about it both knew how it would go for teh rest of the summer, sheep be damned.
" maybe this little chapter from the short story can aleviate some concerns as whether it was just a one time thing or not, read very carefully and you can make your own judgement."
Note: another passage about Jack and Ennis: They beleive themselves invisible, not knowing Joe Aguirre had watched them through his 10X42 binoculars for ten minutes one day, waiting until they buttonned up their jeans, waiting until Ennis rode back to the sheep, before bringing up the message that Jack's people had send words that his uncle Harold was in the hospital with pneumonia and expected not to make it.
the scene in the tent you see in the movie was to show that Jack and Ennis did take it futher than one might have thought, the movie also wanted to honor some of the moments of what occured in the motel as in the short story as it is in the the storyline its most important part that differs in the movie, so they in some manner created the scene in the Tent, the kiss and their fondness for each other. for what occurs in the motel told by Annie Proulx would have been too riske in the movie, so it was tamed down by rendering the tent scene. make your own conclusion, as for me it honored the wishes of the writer, for she approved.