Link waits until after Zelda falls asleep that night to cast the Triforce-switching spell.

Attempting to look as nonchalant and innocent as possible, Link read from Zelda's library for the rest of the day, waiting for Zelda to come home. When he did, Link would seal Zelda's magic and then use the Triforce switching spell on her. Of course, in order to do that, Zelda would probably need to be asleep, otherwise he's probably stop Link. So, Link decided, with apparent regret, that he would fulfill that last order, and once it was done and Zelda was sleepy, Link would act.

The doors to the room opening with a slam, and shut just as noisily. Link was startled, and looked over to see Zelda undoing his illusion, revealing his masculine form to Link once more. His eyes were on Link's, and there was a large tent in his pants. "You remember what I told you this morning, Link? I'm going to fuck you now. I order you to lay down on the bed." Unable to resist, Link walked over to the bed and laid down on his back. A spark of anger appeared in Zelda's eyes. "I order you to lay down on your stomach...ass up in the air." Frowning, Link turned around and lifted his ass in the air. He could feel Zelda's eyes on his pussy. "Get wet. Now." Immediately heat flashed through Link's body, and his nether regions were damp and thick with his juices.

Zelda walked over to him and ripped the clothes from Link, leaving him naked. Then he positioned himself right behind Link, and he felt his old friend's enormous, meaty cock right outside the entrance of his pussy. Zelda grabbed onto his ass with both hands, squeezing his feminine posterior before he thrust forward and split Link in two. While there was definitely some pleasure, it was overridden by the pain Link felt, as his pussy straining to contain the monstrous cock inside it. Link let out a moan of pain, but Zelda did not seem to care, and started thrusting more and more, faster and faster. "Yes, this is perfect!" he moaned, his hands massaging Link's ass as he pumped in and out of his pussy. "More, I need more!" His thrusting tempo increased, and soon Link's pain started to fade away, replaced with pleasure. Far too soon, just as he began to enjoy it in fact, Zelda's pace became more erratic, and Link could feel the cock inside him tightening with tension. "I'm cumming!" he roared, and soon his cock was erupting inside Link, spurt after spurt of hot cum filling her pussy.

Unsatisfied, Link scowled as Zelda pulled his now-limp cock out of her, walked to his side of the bed, and promptly fell asleep. After waiting a few minutes to ensure it wasn't a trick, Link sealed his magic, then started preparing the Triforce-switching spell. It was then that she realized she needed to choose how she was going to resolve this: should she switch herself and Zelda's pieces? Give herself power, and him wisdom once more? It wasn't a heroic thing to do, but part of Link loved the idea, of getting his **** on him, dominating him the way he had her. What if she switched Zelda's piece with Ganondorf's? Then she would be a hero, and Link could be the Princess. The idea was foreign, but appealing. Link found that she really enjoyed being smarter, and being a woman wasn't too bad either. Just because the land needed a hero, didn't mean that hero had to be her, right? Of course, she could also just use the spell multiple times and keep switching until everyone had their original pieces, though that would take longer, and could possibly wake Zelda up and cause a problem.