Of course, Tony had no use for conventional methods of working out anyway, so while Steve warmed up, Tony decided to test his reflexes by punching and kicking in the air. Tony was definitely leaner and his muscles more defined from the nanotech running through his body, streamlining his body into what would be considered the perfect form. When he'd finished, he stretched his arms above his head and popped his neck, very ready for the sparring. "Ready to get your ass kicked?" he taunted playfully.