A cold, creeping shudder began to spread down Lucas's spine. He felt his eyebrows coming down and together as he stared blankly into Brooke's face. He shouldn't be reacting this way internally -- why was it happening!? It was cold dread that was now spreading out from his spine to the rest of his body. Brooke had made a simple request, and from the little twinkle in those green eyes, surely she was just playing around with him as usual, right!?
But something in Lucas's brain balked, and seemed to scream "no!" His eyes, seemingly of their own volition, went slightly up from her eyes, to the top of her head, which was nearly even with his line of sight. This...this couldn't be right. Even if the stadiometer was accurate, and Brooke was actually 5'9, he was still 4 whole inches taller than her. But this comparison now...it didn't really seem to reflect that. Brooke definitely looked taller and fuller. But...could it really be, too, that he was...shorter!?
"W-we...we don't have any time for shenanigans, ok Brooke?" he heard himself say, as he retreated away from the stadiometer and back towards the safety of his desk.
"Awww come onnnn, why not?" whined Brooke playfully, pouting her lips in mock-disappointment. "It'll be fun, comparing us both, don't you think? And besides...I think you look shorter, Lucas."
"I...what? You do?" he blurted out, leaning down slightly as he put both hands on the side of his desk, facing her. He hadn't been able to hide his anxiety.
"And I can see I'm not the only one who thinks so," purred Brooke sexily, sauntering up to him as her D-cup breasts bounced bigger and bigger with each approaching, catwalking step. When she finally reached him, Brooke stood up proudly to her full height, inflating her chest in the process, so that her body swelled to proportions that Lucas hadn't seen yet. Her already-torn dress stretched some more over her large, heavy, protruding breasts, threatening to tear still more fabric, as her erect nipples pressed themselves even harder into the dress, as if they were fighting to be let out. But the most striking thing now was that Brooke was actually taller than Lucas. He felt another surge in his loins as, for a moment, he thought that Brooke had grown again...taller than him. But he quickly realized that it was a false perspective, all based on the fact that he was leaning into his desk, and, in a strange hurried rush, he scrambled himself up to his own full height. There wasn't any doubt now -- the top of Brooke's head was even with the middle of his forehead. Something was terribly wrong.
"Come on, Lucas, admit it," said Brooke in a low, sexy voice, "You look smaller, don't you?"
"I...I, look...Brooke, of course I look a little smaller to you," replied Lucas, struggling a bit but still somehow finding some firm foundation to hold onto inside his head. "You've got a whole host of second-gen nanobots in you! I haven't been shrinking, Brooke -- you've been growing!"
Brooke said nothing, only slightly elevating her eyebrows in response. Lucas blinked and found himself smiling.
"I mean...haha, come on Brooke," he chuckled, "Let's not get ahead of ourselves, ok? You're our brave test subject in our human trial, hahaha, not, uh...not me."
Brooke narrowed her eyes slightly up at Lucas, and she inhaled, opening her mouth to say something else. Lucas saw her chest inflate again, growing up bigger and bigger under his eyes, as the firm, heavy flesh again seemed to fight the torn dress for release. Lucas felt his cock start to rise again in his pants, but a sudden cheerfulness, at successfully regaining his wits, made him jump out in front, and take control.
"And anyway," he said, raising his own eyebrows in tandem with Brooke's and speaking a bit louder than usual, making a point to talk over her, "Since you've obviously been experiencing some...let's call it "phantom growth" right now...we need to run the same test protocols again, just to see if the changes have been consistent across the board."
"So...another IQ test?" asked Brooke, her eyebrows dropping slightly. Lucas felt warmed and reassured by her dampened expression. She could inflate and bounce those enhanced boobs of hers around all day long...she still couldn't quite get in his head.
"Yes ma'm!" he replied cheerily, reaching into his desk for a couple copies of the test.
"Oooo, I like it when you call me "ma'm,"" Brooke cackled, indicating her delight by another toothy smile, showing that impressive horseshoe of teeth in her upper jaw as she leaned back slightly. Then suddenly, she leaned forward again, swinging her shoulders back and forth, which made her D-cups jiggle and bounce left and right, left and right. Lucas even saw some of that firm flesh rippling slightly from their sheer volume. "It's kinky...it's like...haha, it's like I'm the boss and you're the secretary."
"And I am...so thrilled that my secretary has such an active imagination," responded Lucas, rolling his eyes. He was trying to play all of this off casually, and he was impressing himself with how effortless it was all feeling. That little eye roll had been the icing on the cake; what did it matter that his cock was now even more than semi-erect?
"Wait, so you're taking the test again too?" asked Brooke, as Lucas handed her a copy and spread one out on his desk for himself.
"Uh, yes...yes, I just thought that we should, you know...just do it for comparison again," answered Lucas, suddenly having to scramble a bit for an explanation. In his subconscious, away from his waking brain, he knew why he was doing this. To see if Brooke had gotten smarter...and to see if he had gotten dumber. He wanted to see if the gap between their intelligences had narrowed, just like the gap between their sizes. Lucas was scared, and thrilled, to see the result. He wanted to be smarter than her...really, truly, he did. But his cock wasn't on board. And the way she was staring at him with that coquettish suspicion glinting in those green eyes...something told him that she was already on to him, that the gap had already been narrowed. More blood flooded between his legs, but he took in a deep breath through his nostrils and smiled at Brooke paternally.
"Plus, I mean...I don't want you to feel like you're, you know...being subject to all these tests and examinations and whatnot all alone," he said, smiling at her with a roiling gentleness. "I want you to feel like...like we're in this together."