Oh yeah, that... She remembered his bragging about transformations. So it wasn't a lie after all. She twitched when he transformed and backed away, gliding in the sky, floating gracefully as her wings stayed gently outstretched, casting wind beneath them. Crap, this wasn't good. He then collapsed a moment, in mid transformation and she blinked. What the-? But before she could mention anything, she felt a similar pain, like a throb in her chest.
She winced and clutched between her bosom a moment, the pain fading. What the crap was that?? She trembled for a second and panted, looking at him with a glare. What was going on here? She didn't want to waste any time though, so she used this moment to wisp off across the sky.
That had been only the initial reaction of the curse they unleashed upon themselves. It wouldn't be until a while later that the lingering weakness would set in, a few hours maybe. As he searched for her, he would feel similar pains as she did, a shortness of breath, a pull in his chest, and later in the day, the distressing feeling that his soul was trying to be pulled from his body.
She wasn't so well off either. Flying low and slow, she began questioning her strange and sudden illness, panting softly like she was having trouble breathing. Curse him, what had he done!? She growled mentally. Later in the evening, she worsened to the point of going back to find the bastard child. And that's what she did.
She analyzed the symptoms and noticed they were getting stronger and then weaker depending on the direction she traveled, and when she finally found him across the street, and the strain was mild, she looked at him wide-eyed. No way! She called out to him weakly, feeling low for crawling back, but was somewhat happy to find he too wasn't fairing so well. When she finally approached, him she was short of breath again and glaring.
"Ooooh you!" she whined near hysterically. "What did you do!?" she grabbed him by the shirt and shook him, trembling slightly. Her body felt at ease around him and that confirmed it. And being frantic and starved for rest, she whined louder pressing her chest into him and breathing shakily as the pain began to slow. "You bastard...!" She grumbled, face buried in his chest and wings twitching worriedly.
Night had fallen and she was exhausted. The map scroll was along the small of her back, tucked through her belt as she held onto him in the middle of the street, too tired to strike him with anything right now.