Susceptible

.

Shadow didn't understand what was wrong with him. Usually, he'd be fine in any sort of situation, seeing as he was artificial and immune to any illness, but something about being in Sonic's plane with him made him feel... off. And it wasn't just because he was his long time rival.

Shadow noticed that his hands were rather shaky and sweaty, he kept getting dizzy spells, and it felt as if his throat was too tight which made swallowing difficult. Strangest of all for him, was his stomach felt really displeased. It felt like it was trying to force its way up to his throat, as if it were trying to escape the current oblivious torture his rival was giving him.

Adding in the feeling that his seat belt felt too constricting around his midsection and that every time the plane moved at all, it sent an intense spike of icy nausea through his veins. It kind of scared him; he's never experienced something so uncomfortable before. Especially not in his own body.

"Alright Shads, you ready to see what Tails got done modifying?" Sonic called out over the sound of the propeller.

The black and red hedgehog hesitated to speak as he swallowed back another thick amount of saliva that flooded his mouth. Not from fear, no no, but from intense nausea. He was certain it was from the blue blur's carelessness when it came to flying: whizzing high through the clouds and making sharp movements in the sky with the occasional steep nosedive a few feet down before quickly ascending once more.

"Does it make you eject from the cockpit and send you tumbling to the ground?" He tried to sound as normal as possible, forcing himself to ignore the sickening churning in his stomach as he spoke.

Predicting such a cold reply, Sonic gave a cocky laugh before turning to face him. Once again proving to Shadow that he had very little concern for safety.

"Nah, not even close! It's the Booster near the tail of the plane!" The slightly younger hedgehog pointed out.

Shadow gave him an unamused glare, trying to act just as, if not more, cool and collected as him. Harder to do when you felt like losing your lunch at any second.

"The what?"

"The Booster!" Sonic casually repeated as he turned his attention back to the Tornado's controls. "Recently when we went on a little cruise around cloud village here," he gestured to the plethora of clouds besides them, "I blew out the previous Booster. Right now, the Tornado isn't actually going that fast, just a mere 450 kilometers an hour, which is way too slow for me! So I had asked Tails if he could install another one, this time more suited to my specifications!" Sonic turned to face Shadow, giving him his full attention rather than paying attention to the plane. "I thought I'd test it out with the only other person that I know has a love for speed like me– you!"

"Thoughtful idea, but stupid." Shadow spoke coldly, crossing his arms.

He wasn't one for showing any sign of weakness, even when he was badly injured, yet with what he was feeling right now, it was becoming more and more difficult to hide his mounting discomfort. Especially with Sonic staring him down with that stupid eager grin.

"Aw c'mon Shads!" The blue blur reclined in his pilot seat, "I wanna show ya just how fast this baby can go! With as much speed as she carries–"
"How much damn speed do you need?"
"Just enough to feel satisfied– anyway, Tails predicts that the Tornado's booster can break the sound barrier!" Sonic gave a prideful, and rather conceited, laugh before he glanced at his rival in the backseat. "Now buckle up, faker! ENGAGING THE SONIC BOOST!"

With a delightful shout to the sky, the cobalt hedgehog slammed his thumb onto the "BOOSTER" button on the control panel. Instantly, the biplane went from 400km to over 1000km.