Frustrated, Amy tried stomping on his foot. He only laughed and made her hit herself once more. She aimed higher, with her knee. It was OK with other vN, she decided. There was nothing in the original programming about not hurting them. They couldn't even feel pain. But Javier doubled over anyway, then lunged forward and dug his fingers into her ribs.
I'm not ticklish, she tried to say, but all that came out was squealing. She had seen other people get tickled before, had seen all the wriggling and screaming and laughing, and now she understood it: tickling was wonderful. She did a checkpoint pose, raising her arms high and letting herself go limp against the wall. He could get more spots more quickly, this way. Oddly, it didn't work – he stopped immediately, stepping back with his hands up like she'd suddenly turned electric and dangerous to touch.
"You're supposed to fight back. Humans always fight back, anyway." He frowned. "I always have to quit, or my brain will fry. Something about how high their voices go when they beg you to stop…" He gestured vaguely at his skull, as though his important processes were really held there and not all through his body.
"Why do they do that?" Amy asked. "It feels good." She bent down and started rolling up one leg of her jeans. "Can you try the back of my knee? My dad is ticklish there."
His eyes rose from her bare leg to her face. "Huh?"
"I've never been ticklish, before. I want to see if every spot is equally ticklish."
Javier tilted his head. "You, uh, need my help with that?"
"I promise not to fight back," Amy said. "And even if I did, it wouldn't matter, right? I'm vN. You won't melt."
He rubbed the back of his neck. "I'm starting to wonder." His head jerked toward the bed. "Sit."
"I have to be sitting down?"
"I can't really get the bottom of your feet if you're standing on 'em, can I?"
"Oh! Good thinking." She sat, and stuck her feet out.
Javier picked up one foot gingerly and started tickling. It was very light, and reminded her of the odd scratches she'd received from holding the class mouse for the first time. "So, this is new for you?"
"Mmm hmm." Amy lay back on her elbows. "I've never been ticklish. I must have gotten it from you, like the photosynthesis."
"It's built into our tactile receptors," Javier said as his fingers skittered lazily up the back of her leg. "It was so our clade would feel snakes and spiders crawling across our skin. So we wouldn't bring them back to camp with us by mistake."
"So they wouldn't bite the humans?"
"Right." He lifted one hand and stretched it out. "The jungle spiders are huge. Bigger than my hand. My dad said so. He had to kill one, once."
"Did your dad see any other animals?"
"He lost his hand to a jaguar, one time." Javier wiggled the remains of his left thumb. "Now I know how he felt."
She sat up. "Can I see?"
Javier held out his hand. Amy took hold of it with both of hers and flipped it over. The thumb was there, but it looked too small and loose to be of much good. She had really done some serious damage to it. "I'm sorry. I didn't know it would take this long to come back. It's still so floppy!"
"Hey!" Javier retracted his hand. "Be nice."
Amy wasn't aware she'd been mean. "Sorry." She grinned and reached out for Javier's middle. Now that she knew what tickling felt like, it was much more fun to try it on someone else. Javier tried slapping her hands away, but she was much quicker and ran her hands up under his arms. He scuttled backward, but she stuck her foot out to trip him and he fell down. Amy pounced. Her dad did it this way: somehow she always wound up on the floor. Vaguely, she wondered if Junior would enjoy being tickled, too. Javier was now rolling around like a big cat with his belly up, laughing and swearing. It was a little odd – normally people only ever said, "Oh shit, oh fuck," when they dropped something or locked their keys in the car. But the deeper her fingers went, the fouler his language got.
"You said no fighting back!" Javier wiggled his fingers under her collar. "You promised!"
Amy paused. "Don't you like this?" She sat back. "I can stop–"
Something banged on the door of the RV. She froze. Javier shoved her off him and scrambled up. He peered through the window, rolled his eyes, and yanked the door open. "What?"
"Meter says you're done," the voice said. "You're all charged up."
"Thanks," Javier said, and slammed the door. He patted his pockets. The keys had fallen out while he was squirming around on the floor, and Amy held them up. He grabbed them quickly, and resumed his seat. The RV fired up the moment he swiped the keys across the dash. Amy watched through the windscreen as they exited the parking lot and found the road again.