Link had changed some, physically.

...Link awoke to find something amiss. Zelda was still asleep, snoring loudly next to him, so he quietly got out of bed and moved over to her dresser mirror. The changes, though few in number, were apparent. Link's hair had grown out several inches, giving it a more shaggy look to it. The entirety of Link's face had lost it's edges, his nose less sharp, his chin more rounded. It gave him a softer, more feminine looking face overall. A few minutes of checking everything later, and Link was able to conclude that his face and hair was all that had changed...so far.

With a loud yawn, Zelda rose from her side of the bed and walked sleepily over to Link. Looking at her in her nightgown, he had a good view on how Ganondorf's piece of the Triforce had changed her. Zelda looked as though she must have weighed at least two-hundred and fifty pounds, and most of the weight had settled across her entire body. Her stomach, though, had taken the brunt of it all, and stood out several inches from her waist. Her breasts, oddly enough, didn't look much larger than they had beforehand. In fact, there was something odd about them, but Link wasn't able to nail exactly what it was, not yet. The princess was looking at her captive hero, her gaze interested. "Link, look at your face! Small changes already? I wonder if our assimilation have been sped up by our proximity?" Then she yawned again, and one hand absently started scratching her stomach. "Well then, I've got to go to royal things, so after I get dressed and leave, you can go ahead and do whatever you like, as long as you don't leave the room."

As it turned out, that didn't leave many options for Link, and so he ended up reading all day. Every few hours a servant would bring in some food and drink for him, but they always left before he could even tell them 'thank you.' By the time Zelda came back in the evening, he was nearly halfway through an ancient history of Hyrule, though it was mostly guesswork. He patiently listened as Zelda told him all about her day, and when the time came for bed they once again settled on opposite sides. However, this time Link found his gaze wandering to her, unable to sleep soundly. Was she lonely? Scared? Even after all of this, she was his friend. Maybe he should comfort her. His eyes wandered further to her soft backside, bursting forth from her nightgown. Maybe this was a chance to get a little...closer to the princess?