Chapter 4

Melissa and Steve were standing in front of the long mirror in her bedroom that spanned from the floor and up the wall, stopping at exactly the 7-foot mark. She had more or less dragged him in there, since Steve was fresh off the insane realization that his stepmother had grown 3 whole inches, making her 5’9, while he had shrunk all the way down to a measly 5’4, and all just in a matter of days. These unprecedented (and, he thought, impossible) events were really starting to take a toll on him, and all Steve wanted to do now was lie on the sofa and play video games, to try and distract himself from the bizarre nightmare of a reality that he had now been thrust into. And that wasn’t even taking into account the unwanted, intrusive sexual thoughts that had slowly been growing in his mind ever since he had started shrinking. What was all THAT about!? In any case, he was still nowhere near comfortable enough to report these thoughts as “symptoms” to Melissa. No, no, that was just impossible. He would have to deal with them on his own.

“See!?” exclaimed Melissa excitedly. They were standing in front of her bedroom mirror, and she had lined Steve up next to her, so that they could more easily compare their heights. Steve looked sullenly back at his own reflection…he was starting to look really pathetic. He had gotten so short, and he had lost muscle definition — he couldn’t help but think that he looked like he had regressed in age, and that he was some kind of scrawny sophomore who had never gone on a date and who was awkward around girls.

But Steve really couldn’t spend too much time looking at himself. Instead, he found that his eyes almost helplessly traveled over to his stepmother’s banging body, which was slowly beginning to rise up over him. Her big boobs looked absolutely delicious all stuffed into her tight black top, and the swerving transition of her small waist into her thick, wide hips arrested his stare and made him gawk…it was almost too perfect, the way she was shaped. And her ass…well, Steve was trying not to even think about that. Even with the two of them standing the way they were, facing the mirror front-ways, Steve could still see the round volume of his stepmother’s fat ass slyly peeking out from behind the firm, thick pillars of her thighs. He was already struggling to keep a mid-range erection at bay, and so he savagely reminded himself that he did NOT need to be staring at his stepmother’s butt.

“Like, the top of your head doesn’t even reach my eyes anymore!” Melissa was saying brightly, drawing a line from her eyes across to where Steve’s head would have been if it had been even. “This is really something, Steve! Haha, betcha never thought you’d be looking UP at me like this, huh?”

“No…Melissa, I didn’t,” sighed Steve, shrugging his shoulders as he slouched in place.

“Aww, come on don’t be all pouty like that,” she replied, as she turned her head and averted it downward toward him. “We’re just having a little fun here, is all. And like I said, it’s all for research purposes anyway. The comparisons between the opposite effects of the multivitamin on the male anatomy versus the female.”

“I…look, I kinda don’t wanna hear any more about this “multivitamin” business, ok?” complained Steve. “It’s already done me enough harm, obviously. Come on, I just wanna…*sigh* go chill on the couch ok?”

“Now that is exactly the kind of attitude that is NOT conducive to research progress,” tutted Melissa, as she shook her head meaningfully at his reflection in the mirror (though with that same furtive smile on her face). “Whining about what’s happened isn’t going to change anything, Steve. You want to reverse this change, don’t you?”

Steve stared back at her reflection and silently nodded.

“Well, how do you think we’re gonna get there, hrmmmm?” pressed Melissa. As she spoke, she extended her hand up and around Steve’s right side, and slowly encompassed the ball of his right shoulder in her firm but tender grasp. Exerting more effortless strength than Steve though she was capable of, Melissa pulled his body into hers, shaking him playfully to emphasize her point. He felt the firm weight of her hips squishing up against the middle of his ribcage, and he mentally registered a powerful temptation to turn around and look at what his butt looked like compared to hers. But for the moment, he resisted.

“How do you think we’re gonna learn about the vitamin’s effects if we don’t document them?” Melissa persisted, shaking his body against hers. “This is how research works, Steve. We test a product…it does something unexpected…and then we have to explore all the options for WHY things turned out the way they did…and to DO that, we need stats…data!” As she spoke, Melissa’s eyes were going up and down their reflections in the mirror, and Steve could tell that she was just drinking in the comparisons. The bright energy in her eyes told him that she was getting more than a purely “research” kick out of comparing their bodies.

“Look…ok, I get it, alright?” Steve admitted. He nodded dutifully, thinking that perhaps the best way out of this was to humor her for a while rather than to pout and mope around.

“Mmmm of course you do,” hummed Melissa warmly, as she hugged his body to hers even tighter, releasing him after a couple moments of uncomfortably intimate contact. “Ok so let’s take off our clothes so we can really see how we look.”

“Wh-what!?” cried Steve. His eyes bulged out slightly as Melissa started unbuttoning her blouse. “W-Wait, Melissa! What’re you…what!?”

“Oh my god Steve,” chuckled Melissa, as she continued to unbutton her top, “I don’t mean “strip.” You’ll keep your underwear on, and I’ll keep my panties and bra on…duh! Hahaha…but seriously, how are we gonna truly compare our bodies if we have clothes on? Especially those baggy pants and shirt you’ve got on? No, no, come on Steve, let’s do this.”

For several seconds he could do nothing but stare as Melissa finished unbuttoning her top and then, with a flourish, whipped it off, exposing the bare flesh of her arms, shoulders, and stomach. Steve had never seen her this unclothed before, let alone after having grown three inches and put on weight in all the right places. Melissa looked stacked. Her arms looked firm, solid, and strong, without losing their feminine contours and plushness; her stomach was toned and appealing, and when she pivoted to the side, Steve could see the faint outline of her individual abdominal muscles as they briefly flexed. Her breasts looked bigger than ever, almost like they were about to pop out of the tight black bra she was wearing. It was incredible — Steve was struck by the impression that he was looking at someone who could easily be a model, on the cover of magazines. But this wasn’t any of that! This was Melissa he was talking about!

Almost on cue, Melissa, who had unbuttoned her tight jeans and was trying to step out of them on one foot, suddenly stumbled and fell forward. Steve saw the quick six-pack flex of her abdominal muscles as she fell forward, and only her outsplayed hands kept her from face-planting into the glass of the mirror.

“Ahhh shit!” she muttered. For a moment she blinked at herself in irritation, but she quickly recovered and laughed, standing up straight and turning back to Steve with one long, full leg bare and one still stuck in her jeans. Steve marveled at how sexy her thigh looked, and how her calf muscle seemed to expand impressively out around both sides of her lower leg in a way he hadn’t noticed before. He had to think of something to distract his gaze.

“Uhh…maybe you should sit on the bed?” he suggested, smiling in spite of himself, “Instead of…you know, hopping around on one foot?”

“Heh, you know me too well!” laughed Melissa, and she moved to go sit on the bed. But she paused, studying the faint handprint that she had made on the mirror.

“Hmmm,” she murmured, and then spoke out a little louder after a pause. “Hey Steve, here, show me your hand.”

She splayed her fingers out and held her hand up to Steve; he stared at it blankly for a few moments. It was clear that Melissa's hand was noticeably bigger than before, that her fingers were longer and thicker, and that her whole hand itself just looked, well…stronger. Steve understood after another second: she wanted him to compare his hand to hers. He slowly obeyed, holding his hand up to hers, and Melissa smiled as she moved hers forward, the skin of their palms and fingers pressing up against each other.

Steve blinked, not knowing what to think; Melissa’s fingers rose up prominently over his, obviously longer and thicker. The top of his fingers barely even came up to the top third knuckle of hers.

“Haha, wow!” Melissa burst out, “What a difference! Here, let’s see…ummmm…measuring tape, measuring tape….here, no, no don’t run away! Remember we’ve gotta record this kind of stuff, Steve…ok…man! Almost an entire inch difference! Haha, I bet that makes you feel pretty small, huh Steve? Seeing my hand look like it’s gonna absolutely swallow yours!?”

At the word “swallow,” Melissa had curled her fingers down over the top of his, emphasizing even more obviously their size difference — it actually did look like her big hand was about to “swallow” his. And worst of all, Steve’s reaction to all of this was to feel even more aroused. Why was he getting turned-on by all this craziness!? What was sexy about Melissa dwarfing him?? In any case, he didn’t have time to take it all in, because she had moved back to the bed and was leaning back, trying to yank her tight jeans down her full thighs. The whole picture was so silly — Melissa being an awkward spaz as usual, but her legs…Steve had to remind himself to keep his mouth closed.

For the next 45 minutes, Melissa kept him in her bedroom, essentially forcing him to strike poses next to her so that she could take pictures and measure, all for the supposed purpose of “collecting data.” It went without saying that Steve was deeply uncomfortable with having pictures of himself and his stepmother in their underwear floating around out there, but Melissa was being so insistent, and he was slowly losing his will to oppose her. She was just so much bigger than him already, so much more vivacious and full of energy — he felt like a dullard next to her, even if she was silly and awkward. She finally prevailed upon him to take his pants and shirt off, and as he did, Melissa stood there, hands on her hips, apparently oblivious to the sheer sexual power of the gorgeous body she was sporting. And when she saw how small he had gotten, she wasn’t able to hide her excitement, which she wasn’t even bothering to disguise now.

“Oh my GODDDD…Steve!” she cried, putting her hands over her mouth, “You’re, like…you’re tiny!”

“Hey, I—I mean, come on now,” he tried, “I’m not…not that small. Just smaller.”

“Uh, compared to me, you ARE that small,” Melissa insisted. To prove her point, she again pulled him into her body, so that their bodies were squished into each other, side by side. This time, though, there was ample flesh contact, and Steve shuddered as he felt the pure pleasure of his stepmother’s warm, smooth flesh pressing up into him…her thigh, her hip, her E-cup breast brushing into his upper shoulder…she was just so hot that it was only going to be a matter of time before she noticed the bulge in his underwear. But somehow, Melissa seemed to be focusing on other things, and hadn’t seemed to notice it yet.

“I mean, just LOOK at us, Steve,” Melissa breathed. It sounded like she was in awe of the comparison. “Just a couple days ago you towered over me, and outweighed me by what, like 40 pounds at least?”

“Don’t remind me,” muttered Steve, temporarily lapsing back into sullenness.

“And NOW,” Melissa continued, ignoring him, “I’ve GOTTA outweigh YOU by at least 20 pounds, wouldn’t you think? Like, look at our thighs next to each other, Steve! Look at that…mine’s like one-and-a-half-times bigger…haha, so are my calves! You’ve got those cute little chicken legs. I bet you’d need two of your calves to fit into one of mine now, huh?”

“Can we just…not?” whined Steve, but Melissa just kept going:

“And it’s not just the legs, Steve — check out our arms! Haha I’ve never really had much in the way of…what do you call it? Arm definition, haha…but check it out! I look strong! I’ve actually got some lady muscles now! And next to you…I mean, my arms are bigger, aren’t they?”

“They…um, I don’t…really know,” sighed Steve. He had exhausted his plan to “go along” with her enthusiasm, and now he just wanted out.

“Flex!” chirped Melissa, striking a double-bicep pose herself as she looked at them both in the mirror. “Before we measure.”

Steve reluctantly obeyed, and the truth was clear a moment later.

“Yep…not even really close, is it?” chuckled Melissa, winking at their reflections. “Ok, ok Steve, I can tell you’re sick of this. Let’s just do some quick measurements and I’ll let you go.”

Every measurement reinforced what was already clear: Melissa’s body had become superior to Steve’s in every way. Her muscles were bigger, her limbs were longer, thicker and firmer, and even her skin was smoother and tighter, with a healthier-looking sheen. It wasn’t that Steve looked sickly or unhealthy per se — it was more like he looked fantastically unimpressive next to his accentuated and augmented stepmother.

Still, somehow he managed to exit the bedroom without Melissa appearing to notice that he had been semi-erect the whole time. A part of him felt that there was no way that she hadn’t noticed, but then again, he reminded himself that this was Melissa he was talking about. She might not know what to do with the knowledge that her stepson was now apparently aroused by her. But Steve tried to force all of these thoughts out of his head. He was going to go relax, play video games, and not think about the surreal nightmare he had been suddenly thrust into.

Melissa watched him go; she hadn’t even bothered to put her clothes back on. Of course she had noticed the bulge in her stepson’s underwear, and she had been a bit surprised by her own internal reaction. She had felt a distinct spark of arousal firing up deep within her loins, and she had been forced to repeat to herself, numerous times throughout the comparisons, that she shouldn’t blatantly stare down at Steve’s groin. One reason was that she hadn’t completely wrapped her own head around the arousal she was feeling, but there was another reason that was much more direct and rational: she wasn’t sure if Steve’s semi-erection was because of her body, or the comparisons themselves, or perhaps if it was his boy’s physiological response to the vitamin itself, and didn’t have anything to do with arousal at all.

Of course, Melissa had wanted to bring it up, to ask Steve about it, but in a dash of uncharacteristic shyness, she passed on the opportunity.

‘I just…I just don’t know…how to ask him about it,’ she thought to herself as she watched him walking quickly away. ‘Guess I’ll need to investigate more, to see if this is actually another…another symptom.’

Even in thinking about it to herself, Melissa had paused, second-guessing her own clinical objectivity. Why was she feeling so hot and bothered, so randy, so…sexual!? She knew she was enjoying Steve’s misfortunes way, way too much, but at the same time, she also had enough wherewithal to realize that she wasn’t actually that worried about him.

‘This isn’t a life-threatening condition he’s got,’ she reassured herself. ‘His vitals are fine…everything’s fine! He’s just…getting smaller, and I’m just getting bigger.’

Melissa settled on concocting a plan to discover the nature of Steve’s erection. She would let things proceed along normally for a few days, charting his progress as usual without doing anything dramatic. But then…well, she’d find a way to put Steve on the spot and force him to come clean to her.

It proved hard for Melissa to hold herself back for several days, but she managed to do it. On the surface, everything between herself and Steve proceeded along as normally as it could have gone. She still measured him every day for her research, but she made sure that these measurements were quick and to-the-point, without any of the provocative, teasing language she had been using before. She was measuring herself as well, but only in the privacy of her own bedroom, after Steve had gone to bed. Melissa could feel in her loins, in her bones, how badly she wanted to play around with him, to tease him, and to playfully torment him with her burgeoning body. But she managed to stick to her plan.

‘It’s important to catch him off-guard,’ she reminded herself, ‘To lull him into a false sense of security, so that when I “strike,” he’s not going to be able to explain himself away. He’ll have to confess to me.’

Three days after their initial mirror measurement, Melissa put her plan into action. The night before, she had measured Steve and found that he had shrunk all the way down to an astounding 4’10, while she was now a full 6’1, and approaching 6’2. He had been staring straight into her nipples, and it had been harder than ever for Melissa to keep herself from grabbing his head and smothering it in her swollen cleavage (complete with the G-cups she was now rocking).

The next morning, Melissa measured herself at 6’3. She could barely contain her excitement as she slipped into some sexy black-lace lingerie that she had surreptitiously bought at the store, along with a pair of shiny black 4-inch pump heels, which now made her a towering 6’7. As she checked herself out in the mirror, Melissa couldn’t help but note that the top of her head wasn’t actually that far away from the top of the mirror itself, which was a full 7 feet tall.

“Getting close,” she muttered to herself out loud, giving herself a smolderingly sexy look as she turned to the side, admiring her even bigger butt, “Getting reeeeally close…”

She waited until she heard Steve coming out of his room, which as usual was a little after noon. He had been sleeping in more and more, and Melissa and her team thought that there definitely was a connection between Steve’s shrinking and his sleep patterns.

But that wasn’t what Melissa was thinking about right now. She was waiting in her room, getting ready to ambush her stepson as he made his way toward the kitchen for “breakfast,” which at this point was usually only half a yogurt cup. Steve’s appetite had dramatically dwindled along with his body. With her bedroom in between his bedroom and the kitchen, Melissa knew that he had no choice but to walk by…and he probably thought she was already working in her office, like she usually was. Little did he know…

Steve was halfway down the hall, having just passed Melissa’s door, when he heard the telltale clack of her heels against the hardwood floor behind him. Her stride was so long, though, that he didn’t even have time to turn around. Before he knew it, he felt the warm, soft weight of Melissa’s huge hands gently grasping the area in between his shoulders, stopping him in place. Slowly, sensually, with languid, deliberate movements designed to ooze sexuality, Melissa snaked her hands down his chest, her long fingers gently probing his sternum and in between his ribs on their soft way down. Melissa wasn’t in the habit of “acting all sexy,” but the changes in her own body during the past few days had made her more and more comfortable with the idea of using her body to deliberately inspire a reaction. For years she had hardly even paid all of this stuff any mind; she had been far too busy with her work. Even her union with Steve’s father had been a bit awkward sexually, and Melissa had never really relaxed into her own.

But now that she was well on her way to looking like a tall, voluptuous goddess, Melissa was finding it easier and easier to breathe life into her own sexuality, and right now, it was all about what she was doing to Steve…how she was teasing him and playfully tormenting him with her body.

“Good morrrrrning, Steve,” she breathed into his ear, as her massive hands had their way with his torso, curling and curving themselves down to his stomach. “My goodness…you’re feeling even smaller today! Mmmmmmm, look, I can almost wrap my hands all the way around that teeny tiny little waist of yours!”

Steve had frozen in place, having no idea what to do. At this point, he wasn’t aware that Melissa was wearing lingerie and heels. All he knew was that she felt a LOT bigger all over, especially compared to him. His cock twinged and came to life instantly, and started to grow rapidly. He thanked the stars that his pajamas were baggier now than ever.

Melissa was careful not to go too fast; even though her breathing had grown ragged with her own increasing arousal, she held herself steady, continuing to snake her hands down around Steve’s upper thighs.

“And your legs, Steve, wowwwww!” she whispered, tickling his ear with her full lips, “I know they’re smaller! Are you still feeling all right, honey?”

It was the first time she had ever called Steve “honey,” and the intimacy of that word, combined with her sensual touching, had an immediate effect. Steve’s cock got even harder, and he let out an involuntary moan.

“Huuuhh…Melissaaaaa,” he whispered, as he started sweat, “P-please…”

“Please what, Steve?” she breathed into his ear. “What do you want?” She was leaning down over him completely, so that her giant tits were now completely straddling his head, hanging far down on both sides of his chest, completely obfuscating more than half of his torso. He could see her full, bare arms lovingly embracing him, and he wasn’t able to help comparing them to his own shrunken, skinny little arms poking out of his oversized t-shirt. He looked like an absolute child next to her.

“I tell you what,” Melissa whispered, “Why don’t you just turn around and tell me what you want, Steve, huh?”

Effortlessly, she spun him around, standing up to her full 6’7 height at the same time. Steve had shrunk down to 4’8 in his sleep the night before, so he was almost exactly 2 feet shorter than her. He turned around and his mouth gaped open. There was Melissa, towering above him, wearing nothing but a pair of black lingerie panties and a matching black bra, positively exuding voluptuous energy. She had her hands on her thick, wide hips, smirking down on him…and she had even taken the time to put on some lipstick and make-up. She looked absolutely stunning, a bodacious colossus of female sexuality filling the hallway.

“Well Steve,” Melissa smiled, giving him a full rotation view of her entire form, shaking her huge ass in his face, “Whaddya think?”

It didn’t matter now that Steve’s pajamas were baggy. His cock was now painfully, fully erect, and it was poking conspicuously up, tenting the thick fabric. He opened his mouth to say something, but Melissa was already ahead of him.

“Hold on Steve, hold on,” she murmured, bending down slowly at the waist. “I don’t even need you to tell me anything.” Her eyes went slowly and deliberately down to his crotch, alighting directly onto the erection tenting his pajamas. She brought her huge face down directly in front of his, her eyes wide and vibrant with excitement. She had been waiting for this moment for a while.

“I think your little guy down there is telling me evvvverything I need to know,” she purred in his face, using her best “sexy” voice.

Again, Steve opened his mouth to say something in response, but Melissa shushed him once again, this time not even having to speak. She had reached straight down towards his groin and wrapped her hand tightly around the tent pole of his erection. Steve’s eyes were full of fear, but Melissa could tell that it was mixed with desperate, pleading arousal.

“You haven’t been honest with me Steve,” Melissa began. “I told you to tell me any symptoms you were experiencing!”

“B-But Melissa…I…I,” stammered Steve, but she wasn’t letting him squirm out of it.

“You’re turned-on by me Steve!” she declared emphatically, shaking his cock in her firm grasp. “I knew it! I KNEW it wasn’t something else! Admit it, Steve! Admit it!!”

“A-Alright!! Alright!!” he cried, “You’re right!! I…I don’t know what’s h-happening!!”

“Awww well ok,” Melissa replied in a softer (but still triumphant) tone, releasing his cock and rising up to her full height above him. “Now we’re getting somewhere.”

She cocked another sexy pose. “We’ve got a lot to talk about Steve.”