Paris's current scale hit Ty as he realized she was probably only half the size of a fully grown female parasaurolophus. Already she was getting cramped in his room and her tail was knocking things over. He decided that Mark and June's house probably couldn't stand the full size and weight of an adult sized dinosaur. Although Ty was really tempted just to let her grow.
"Yeahh, you're a pretty big girl now." Ty gulped. He urged the dinosaur to stop growing, which she promptly did, shuddering slightly.
"Oh!" She looked around nervously, putting a small dent in the ceiling with the top of her crest and gasping, ducking down. "P-Perhaps I could be smaller, Ty?"
Indeed, at her current stature she was problematically big. Ty nodded gently. "Uh, yeah, Paris. I think we let you go a little much."
"Just... not too small?" She blinked and smiled nervously. "I don't want to be handheld again."
"How about I bring you down to my height again?" Ty smiled. "Maybe we could play a little more."
The hadrosaur giggled playfully and scrunched down to the floor on her hips. "Maybe! I'm up for another session if you are. Uh... Ty, do humans normally... um... do that with their pets?"
"Normally our pets aren't intelligent like you." He gently stood up, naked, and touched her chest. What a big wonderful dinosaur she could be. But not yet. He urged her to shrink down to six feet tall. He wanted her to stand taller than him, he grinned, he liked feeling small next to a real dinosaur.
"Oh!" Paris jolted, blinking and looking around at the room as she began to dwindle to a more managible size. "Oh!" She realized suddenly, pretty blue eyes widening. "So I guess... I'm... not going to go for a walk with you?"
"Well, really..." Ty approached her, hugging her chest as she shrank while they talked. "You aren't even supposed to exist."
"But... but I want to go outside with you!" She sputtered in shock. "Do you mean to say I can't leave this house?!"
"We'll figure it out, girl. I would never do that to you. I care too much."
"Oh." Paris breathed a sigh of relief, shrinking all the while. "Good." Soon enough she back down to a considerably less destructive seven feet tall, standing tall again, and Ty watched her sink down dreamily to a head or more above his eye level before she finally shuddered and stopped again.
"Oh, that's much better!" The dinosaur twirled excitedly, seeing she had knocked over Ty's lamp and delighting as she could move again. "I was getting a little cramped."
"Oh, don't worry." Ty grinned, grabbing the dinosaur's arm and twirling her back so he could hug her. "Once we figure out what to do with you, and I get you outdoors, I'm gonna make you a full sized hadrosaur. Like... about 33 feet long?"
"Oh, jeez!" Paris shrunk back nervously. "I'll be... I'll be really big!" She laughed.
"Well, dinosaurs are meant to be big." Ty hugged her neck tight and she put her head on his shoulder, smiling.
"Thanks for making me." She said earnestly. "I'm having a really good time, what with the... stuff. We just did."
Ty giggled playfully and the dinosaur laughed. "Stuff." Ty repeated. "You, uh, tasted really good."
"You actually felt really good before I got too big to, uh, feel you." She blushed on her nose, a deeper orange again.
"I figured." The human shrugged.
"So!" Paris clapped her hands together and wagged her tail playfully. "What are we doing? More naughty stuff? You wanna show me around? I've never been outside this room and I'm not gonna get stepped on now. I mean, I'm kind of thristy too. And hungry." She looked back to her hindquarters and blushed deeper still. "And... I feel a little gross back there."
"Easy, easy!" Ty laughed, grabbing her neck again and making her giggle sweetly as he licked it.