Zim tried to steady his breathing and will his flushed face to calm down. He didn't think the marks would be so obvious. The paleness of Dib's skin made them more vivid than he'd expected. It was slightly surprising the marks had healed this much but after all their fights, Zim assumed Dib had some healing medicine since he got better quicker than any other human. He sighed, guilt worming it's way into his squeedlyspooch. How was Dib still willing to befriend him? After he'd done such a horrible thing as that? Zim made a mental note to be 'nice' to the human from now on. He'd do his best to make up for it...
Zim shifted on his feet. He was glad nobody had paid attention to Dib or the teen would have some explaining to do. They didn't really look like claw marks sustained in a fight but more like he'd gotten them doing something else... Zim wasn't ignorant of that part of life. He knew about 'mating' or 'sex' as the Earthlings called it... Zim pushed the thought aside as his face burned again, this time not through shame. It was addling his brain being around all these 'sex' obsessed teens. Zim hung his head, staring at his trainers, trying to calm down again. Maybe some PE would take his mind off it all? He only had to wait for the bell to go and the pig-smelly humans to finish changing. PE wasn't a bad lesson for him. It reminded Zim of training on Irk except without lazers, Paks and enemy combatants attacking you left, right and centre.
"Zim?" Dib's voice cut through his musings and Zim stared at Dib's shoes in silence before looking up, face masked into indifference, blush finally quelled.
"What Dib-let?" Probably not the nicest thing to say... Dib didn't seem to notice, he seemed concerned.
"You just randomly disappeared and since we are friends now, I wanted to know if you're okay." Zim resisted the urge to roll his eyes.
"I'm fine..." Amber eyes watched him and Zim sighed. "I'm just feeling a bit guilty." The human still didn't say anything. "About your back..." Zim let his eyes drop again, feeling Dib's hand drop into his shoulder. Zim flinched at the contact, years of avoiding it causing him to panic. This was the Dib though, so Zim forced himself to relax. They were friends now and Dib probably wouldn't hurt him.
"They don't hurt anymore." Dib's grip tightened and Zim risked a glance at the teen's face. "I'm just not looking forward to explaining them..." The human's hands dropped from his shoulder and Zim shivered as the heat left him. "We'd best get going. Coach will be waiting." Zim nodded, setting off for the PE field.
"Wonder what he has in store for us today?"