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Biological Imperative	By : GeorgeGlass Category: +G through L > Lilo and Stitch Views: 43393 -:- Recommendations : 4 -:- Currently Reading : 2
Disclaimer: I do not own Lilo & Stitch or its characters. I made no money from writing this story.

Chapter List
- 3
- 4
- 5
Chapter 4
Another five days passed. Stitch continued to behave normally when he was around Lilo, but on at least two occasions, Lilo had been aware of him getting up during the night and going to Nani’s room. Then she’d heard Stitch and Nani making the same sounds they’d made the day Lilo had spied on them in the living room, albeit a little more quietly.
But one thing definitely wasn’t normal: Although the growth of Lilo’s “booblets” had slowed, it hadn’t stopped. In fact, in Lilo’s mind, they were more like real boobs now, albeit small ones. She’d started wrapping an Ace bandage around her chest before she dressed in the morning so that nobody at school would notice and make fun of her—especially her classmate Mertle, who never seemed to miss an opportunity to ridicule her. Lilo didn’t like wearing the bandage, though, as it aggravated the constant low-level soreness in her chest.
One night, after she unwrapped the bandage and the ache increased with the additional blood flow, she pulled on her nightgown and then turned around to look at Stitch. He was on the bed, playing with Nani’s tablet with two hands while he hugged his stuffed sea turtle with his other two arms. He noticed Lilo looking and looked back at her.
“They hurt,” Lilo said, her gaze dropping to her chest. Then she looked back up at Stitch. “Did…Did you do this?”
“Yes,” Stitch replied, nodding. “Lilo will be very beautiful.”
“I don’t like it.”
“It okay. Stitch can make pain go away.”
“How?”
“Stitch will show. Lilo take off nightgown.”
Lilo didn’t see any point in being shy; Stitch had seen her half-naked a few times now. And if he could make her chest stop being so sore, it would be worth it. So she shucked off her nightgown and stood before Stitch in just her plain red undies.
Stitch was pleased by the sight of Lilo’s bare, growing breasts. But at the same time, his instincts told him that they weren’t nearly big enough. He needed to do more.
He went around behind Lilo and placed two of his hands on her chest. Then he began to rub gently.
“This will help,” he said.
“Why is this happening to me?” Lilo said, looking down at Stitch’s blue hands on her chest.
“Lilo getting boobies,” Stitch replied.
“But I’m not old enough yet.”
“Lilo no worry. Soon, Lilo will like it.”
His fingertips moved to her brown nipples and slowly circled them, only barely making contact. They stiffened under his touch.
“That f- feels funny,” Lilo stammered.
“Will feel nice soon,” Stitch replied.
And after a couple of minutes, it did start to feel nice. Lilo found herself breathing harder and leaning forward a bit, as though to push the little bumps on her chest deeper into Stitch’s hands.
“Lilo feel better?” Stitch asked.
“Uh…Uh-huh…” Lilo moaned.
Stitch didn’t stop rubbing. Lilo closed her eyes, the pleasure of Stitch’s touch suffusing her body. But at the same time, she needed something else, something more. And she had no idea what that was.
Lilo was jolted back to reality when she felt something hard and fleshy gently wedge itself between her thighs, and something else do the same between the two cheeks of her bottom. She knew it was his two penises, and she was suddenly afraid.
Oh, no, she thought. I can’t take it if he makes me put it in my mouth again. I can’t, I just can’t.
“Lilo need more than this,” Stitch said.
Still massaging her little breasts, Stitch put his other two hands on Lilo’s hips and turned her around to face him, her back toward the bed.
“Stitch give Lilo what she need,” he explained. “Lilo lie down.”
Lilo wasn’t sure what Stitch was planning, but at least it didn’t seem like he was going to put his thing in her mouth again. So she took a step back and then lay down on the bed.
“Good, good,” Stitch murmured.
Lilo gasped, but didn’t speak, when Stitch pulled her panties down and off. Then he took hold of her ankles and gently pulled Lilo’s legs apart.
“Wha- What are you doing?” the girl stammered.
“Lilo no worry.”
Stitch kept his two hands on Lilo’s open legs. Then, with a third hand, he reached between her chubby thighs and began to finger her bald, puffy pussy.
“S- Stitch,” Lilo whimpered with both pleasure and fear. “That- That feels…I…We shouldn’t…”
Stitch didn’t reply. He just pushed one of his fingers inside Lilo’s wet opening, making her gasp.
“Mmm,” Stitch said, slowly working his finger in and out of Lilo’s hole. “Lilo ready now.”
He took his hand away and moved closer to Lilo while simultaneously pulling her closer to him. Now, her bottom was at the edge of the bed, and her legs were in the air, Stitch’s hands firmly holding her soft calves. Then he used another hand to position the head of his lower cock between Lilo’s puffy pussylips.
Only now did Lilo remember the thing that she’d seen Stitch do with Nani the other night. How he’d put one of his things in Nani’s punani.
“Wait!” Lilo gasped. “You- You told Nani you wouldn’t!”
Stitch didn’t reply. He just pushed, and his cockhead began to spread Lilo’s little virgin hole open.
“Stitch,” Lilo whined, “Stop, don’t, it won’t fit, it won’t fit, it- aaaaaaAAAAH!”
Stitch was barely in control of himself as he forced his cockhead into the girl’s virgin, prepubescent cunt. Getting inside her tight channel took more force than it had with Nani, but Stitch had to get in no matter what. His instincts would allow nothing less.
“Ahhhhh!” Lilo cried again as Stitch’s cock sank deeper into her virgin channel. “Stop! STOP! ST- MMMMPH!” she cried as Stitch clapped a hand over her mouth.
“Shhhhh!” Stitch hissed. “Lilo be quiet now. Don’t upset Nani.” Then, through his teeth, he added, “If Nani interrupt us, Nani could get hurt.”
Lilo didn’t know exactly what that meant, but she could see a frightening madness in Stitch’s eyes. And she knew how easily and how much Stitch could hurt Nani, or Lilo herself, if he wanted to. So Lilo bit her lip and willed herself to stop screaming.
Stitch got about two-thirds of his thick lower cock into Lilo’s body before he hit bottom. He gave one more little push to make sure he was truly at the limit, eliciting a stifled whine from Lilo.
Now, Stitch started thrusting. Lilo whimpered, biting her bottom lip to quiet herself as much as she could despite the pain of Stitch’s big thing stretching her insides.
Somewhere in the back of his mind, Stitch was dimly aware that he was hurting Lilo. But that awareness was submerged beneath an ocean of indescribable pleasure. Lilo’s pussy was very tight, tighter than Nani’s, and the sensation Stitch felt every time he pushed his thick member into it and pulled it out again was nothing short of heavenly. All he wanted in the world was to feel more of this. His cock hit bottom inside Lilo again and again as the diminutive alien thrust as much of his cock into her as possible on every stroke.
He put his clawed hands on Lilo’s growing breasts and squeezed them gently. Then he glanced down at his upper cock where it slid back and forth across Lilo’s stomach, and it aroused him further to think that he would soon be massaging yet more of his seed into the girl’s chest, making her tits grow larger. He felt a twitch in his heavy balls as he pictured them much bigger, bigger than Nani’s were now.
Lilo barely felt those squeezing hands on her sore breasts. She was too occupied with the agony of having her virgin punani stretched so very, very much. Tears leaked from her eyes as she choked back sobs and gritted her teeth against the pain.
It never stopped hurting. But as the minutes passed, and Stitch kept moving his thing in and out of her aching pussy, Lilo began to feel a kind of pleasure, too. There was a place at the peak of her punani where the movement of Stitch’s thick cock in and out of her was producing a feeling that seemed increasingly nice. And as Stitch fucked her faster, that feeling grew stronger and spread through her lower body, increasingly muting the pain from her forced-open channel.
So as Stitch grunted rhythmically, the pace and volume of the sounds steadily increasing, Lilo whimpered in time with him. The timbre of the sound changed incrementally each time as the balance of Lilo’s feelings gradually shifted from pain to pleasure.
By the time Stitch was fucking her hard and fast, Lilo’s arms were around him, her eyes closed and mouth open as she gasped and panted and wordlessly begged for more.
“Yes,” Stitch hissed loudly, his hips pumping furiously, his cockhead hammering Lilo’s immature cervix again and again. “Yes, yes, YES!”
He shoved in hard one last time, and Lilo felt his hot liquid cum shoot up inside her, farther up than she ever knew anything could go, and suddenly she was screaming and writhing, her body hot outside and in as Stitch’s seed coated her torso and filled her womb until her stomach bulged.
When it was over, Stitch kept his cock inside Lilo’s obscenely stretched-wide pussy as he once again massaged her chest. He smiled toothily at the feel of Lilo’s growing breasts, now slippery-sticky with a thick coating of his cum, which he diligently rubbed into them.
Lilo’s mind was blown. She had never felt anything like the sensations she had just experienced, or the ones she was experiencing now: a warm haze that suffused her body, accompanied by the feeling of being so full of hot, sticky seed that her stomach was distended. Was this what it felt like to be pregnant?
It took her a couple of minutes to become aware of anything other than that feeling. Gradually, a feeling of soreness in her chest penetrated the haze as Stitch continued to massage his thick seed into her growing breasts.
“Why do you keep doing that?” Lilo whined weakly. “I…I don’t want them to get bigger.”
“Must get bigger,” Stitch rasped. “Don’t worry, Lilo will like. Will be pretty like Nani.”
Lilo was too exhausted to protest further; she just let Stitch massage his cum into her little tits until he stopped and pulled his cock from her. He grinned toothily at the sight of his cum flooding copiously from her red, swollen, gaping pussy, and he continued to grin as his gaze moved up and over Lilo’s cum-slicked body.
Stitch realized now that when it came to dealing with his carnal urges, the only choice remaining to him was whether his slavery to his needs would be willing or unwilling. And given how good it felt to satisfy those urges—and it had never felt better than it had tonight—there was no benefit in resenting them, let alone trying to resist them.
No, Stitch resolved. From now on, he would satisfy his urges whenever they arose, and he would do it without hesitation or guilt.
Lilo, for her part, lay in a swirl of wildly mixed emotions: pleasure, pain, shame, elation, exhaustion. So she only barely noticed the sound of bare-footed footsteps outside her door, and then one brown eye peeking through the crack in the door before the watcher—who had to be Nani—slipped away.
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Biological Imperative