She was more masculine.

It was only when Link saw Zelda enter the room that he realized what has seemed odd about her breasts before. They were less curvy, smaller, flatter. They were more fatty pectoral muscles than breasts, now. Combined with a few extra inches in height and a wider, more blocky frame that Zelda now sported, and if you hadn't seen her face you would be sure she was a man. The princess was looking at Link, her eyes roving over Link's changed body, and she was blushing like crazy. She coughed, then asked Link, "How...How was your day, Link?" trying to sound casual.

Unsure of how to react to Zelda's changed body, Link meekly told her that it was nice. Zelda nodded, then started to take off her dress. Left in her undergarments, Zelda's changes were even more apparent, with her wide shoulders and heavy frame. Of course, the biggest clue would have been the long, hard tent doing its damnest to poke a hole in Zelda's undergarments. Looking unsure of what to say, she failed to meet Link's eyes as asked him...