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Biological Imperative	By : GeorgeGlass Category: +G through L > Lilo and Stitch Views: 43392 -:- 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
- 5
- 6
- 7
Chapter 6
After that brutal night, Lilo and Nani no longer made any effort to resist Stitch when he wanted sex. When he came to one of the girls in her bedroom, or the living room, or wherever she happened to be, she would simply strip off her clothes, get on her hands and knees in front of him, and steel herself against the pain of being penetrated in her pussy and ass by Stitch’s two thick cocks, and that of being filled to near-bursting with his seed. Sometimes, Stitch fucked them when they were alone; other times, he would tell the other sister to watch and wait her turn.
Stitch fucked each of them at least once a day, and often more. Over the ensuing days and nights, for both girls, the pain of being double-fucked and filled diminished to discomfort.
One evening, not long before Lilo’s bedtime, Lilo heard David pull up on his scooter, and then she heard Nani go out the front door. That was odd, because Nani usually told Lilo when David was coming over. Lilo crept to an open window and peeped through the curtain to see what was going on.
“I just…” Nani was saying, “I have to tell you something.”
She paused, then said, “I’m pregnant.”
David blinked hard. “You- You are? I mean, are we…we’re gonna have-”
Nani’s expression hardened as she cut in, “It’s not yours.”
David’s jaw dropped.
“How, how do you…Are you sure?”
“I’m sure.”
“But-”
“I thought you deserved to hear it from me, in person. Now I think you should go. Goodbye, David.”
Nani turned around toward the door, and Lilo fled the window and raced to her room, not wanting Nani to catch her spying. Lilo made it out of the living room just as Nani opened the door.
Then she heard Nani start to cry. And Lilo somehow knew that nothing she could do would help.
***
The next day was Saturday. Stitch decided to kick off the day by fucking Nani on the living room floor—after Nani laid a plastic sheet over the rug—and having Lilo watch from the sofa. Lilo noticed that Nani no longer appeared to be in much pain as Stitch drove his two thick cocks into her from behind; rather, her face was flushed, and she panted through her open lips as Stitch pumped her, like she had done back when Lilo had first seen Stitch fuck Nani with just one of his cocks.
As usual, Stitch blew a huge load in Nani when he finished. Then Nani, stomach bulging, staggered to her feet.
“God,” Nani said, “it’s sloshing around inside me.”
“Yes, yes, nice and full,” Stitch replied. “And titties getting good and big.” He reached up and fondled Nani’s large tits as though he were their proud owner. “Will be perfect very soon.”
“But Stitch,” Nani protested, “I can barely even go out in public like this. How am I supposed to go back to my waitressing job? Or any job?”
“Nani no worry about money,” Stitch replied.
He pointed, and only then did Lilo notice that Nani’s tablet was propped up on the kitchen counter, its little camera lens facing the center of the living room.
“Stitch put video in special place online,” Stitch explained. “People pay lots money to see girl do sex with alien.” Then, perhaps in response to the look of stunned dubiousness on Nani’s face, he added, “Don’t worry. Stitch hide us very well. No one know who we are, where we are.”
“But,” Lilo piped, “but what about me, and school?” She touched her bare chest—per Stitch’s instructions, she had stripped naked before sitting down on the couch—and showed him how her breasts now filled her small hands. “I can’t hide this anymore.” Pouting, she added, “Yesterday, Mertle called me a chubfish, and all the other girls laughed.”
“Lilo no need go to school anymore,” Stitch replied.
“Stitch,” Nani said, “Lilo can’t just stop going to school. I have enough trouble keeping the social worker off our backs as it is. They’ll take her away.”
“Nani no worry,” Stitch replied. “Stitch will take care of social worker. He not bother anymore.”
Before either Nani or Lilo could ask Stitch what he meant, he turned to Lilo. “Now, Lilo come get fucked. Stitch making nice big load for you.”
Suddenly, Lilo’s stomach felt like it was having an epileptic seizure inside her. As Stitch watched with surprise, she leaped off the sofa and bolted into the bathroom, from which retching sounds immediately came.
Afterwards, Lilo felt better right away. She wiped her face with a washcloth and came back out into the living room.
“All done?” Stitch asked.
“I think so,” Lilo replied.
“Good. Lilo come get fucked now.”
Lilo saw a look of shock on Nani’s face. But it wasn’t obvious to her whether that look was because of Stitch, or because of Lilo.
***
That afternoon, to both girls’ surprise, Stitch left the house. It was the first time he’d left the two sisters alone since his new behavior began. He hadn’t said where he was going, so Lilo didn’t know how long he would be gone. Therefore, she figured she’d better talk to Nani right away.
“Nani,” Lilo said, approaching her where she was stuffing soiled linens into their battered old washing machine. “Should we, maybe…run away?”
“Away?” Nani said.
“Away from here,” Lilo replied. “Somewhere Stitch couldn’t find us. Where he couldn’t…do those things to us.”
“No, Lilo, we can’t do that. Stitch has superhuman senses and intelligence; he’d find us wherever we went. Besides, this is our home—the only one we have.”
“But…but Stitch-”
“This is our life now,” Nani cut in. “You need to accept that.”
“Nani-”
“We’re both pregnant. We’re both going to have Stitch’s baby. It’s too late to change that.”
Nani’s face softened as she looked at Lilo. “Just stop worrying about things you can’t control. Our life may have changed a lot, but there are good parts.” Her smile went a bit edgy as she went on, “Very good parts. You don’t realize this yet, Lilo, but Stitch can satisfy you better than any human boy. You just have to let him.”
***
Lilo and Nani never asked Stitch where he went that day. But as promised, they never heard from the Department of Social Services again.
***
The next afternoon, Lilo and Nani were in the living room watching television, simply because they both felt too tired to do much of anything else. Nani was glad to be free of her waitressing job; she didn’t think she could have managed spending eight hours on her feet today.
They had been there for a couple of hours, watching whatever shows their old TV with its gnarled antennae could still grab from the airwaves. Nani had just thrown a handful of mixed nuts into her mouth when she noticed something odd.
“Lilo,” she asked, “did we really just eat all of that?”
She pointed to the empty potato-chip bag on the floor by Lilo’s feet, then to a couple of banana peels in the wastebasket, then to an empty box of sandwich cookies.
“Um, I guess,” Lilo replied. Then, thrusting her hand into the bag of nuts, she added, “And I’m still hungry.”
“Girls not need food,” Stitch said, emerging from Lilo’s bedroom, where he’d been uploading the videos from the day before onto his clandestine pay site. “Girls need Stitch.”
“What do you mean?” Nani asked.
“Lilo and Nani need to drink Stitch-cum. Then they be not-hungry.”
Stitch wasn’t sure how he knew this, but he was confident that it was true. And the idea of his two sex slaves drinking his cum simultaneously was already starting to make his cocks hard.
The two girls were speechless: Nani because she’d never considered that Stitch would ever want oral sex from her, and Lilo because of her memories of the two previous occasions when she’d had to fellate him. But her reaction was not so much dread as surprise as she realized that although her experiences with having Stitch’s cock in her mouth—and throat—had been unpleasant to say the least, she now found herself craving it. Especially the thought of all of that warm, thick cum filling her belly and assuaging her gnawing hunger.
Stitch went over to the tablet and turned its camera on. Then he climbed onto the coffee table, stood on it, and pointed with two hands at the floor in front of him.
“Girls take off clothes and get on knees. Stitch will feed.”
The two girls got up from the sofa, dutifully stripped naked, and knelt in front of Stitch. As his twin cocks grew turgid, Stitch held them at a right angle to each other, putting his upper cock in front of Nani’s face and his lower cock in front of Lilo’s.
“Each girl take Stitch-cock in mouth. Stitch give you what you need.”
Nani had blown David several times during their relationship, but Stitch’s member was half again as thick and nearly twice as long. Nonetheless, she felt a certain eagerness as she opened her mouth and felt Stitch put his cockhead between her lips.
The girls’ teeth couldn’t hurt Stitch, not even the otherwise sensitive flesh of his cocks, so Stitch didn’t mind the incidental contact as he put a hand on each girl’s head and pushed his cock into her mouth, opening it wide with his girth and then pushing almost all the way to the back of her throat.
Stitch was horny, having had sex only once today several hours ago, when he’d flipped a sleeping Lilo over onto a pillow and fucked her awake just after sunrise. The girls, on the other hand, were obviously tired. So he didn’t make them do much of anything to pleasure him (although he planned to train them both thoroughly in that skill in the near future). Instead, he simply held their heads in place and slowly fucked their open mouths.
Out of the corner of her eye, Nani saw that Lilo wasn’t just passively getting mouth-fucked; she had actually begun sucking on Stitch’s cock as it moved forward and back between her lips. And Nani, despite her weariness, realized that she wanted to do the same thing. So she began to suck in the same slow rhythm with which Stitch was fucking her face.
As she sucked, Nani cupped Stitch’s balls in her hand. They felt full and heavy, which Nani found arousing but which also made her hungrier. She sucked a bit harder and began moving her head to match Stitch’s rhythm.
Stitch liked what Nani was doing, so he used his hand on Lilo’s head to make her do the same thing. Within moments, Lilo began doing it on her own, so Stitch simply rested his hands on Lilo and Nani’s heads as they sucked him.
This dual-pleasuring felt very good, and as it continued over minutes, Stitch could feel a heavy cumload building up in his balls. But he knew that shooting it into their mouths would not be adequate, so he pulled his wet cocks out from between the girls’ lips and tilted their heads upward to look at him.
“Now,” Stitch rasped, “girls must swallow cocks. Swallow all way down.”
Nani’s big eyes blinked. “I- I don’t know if I can do that.”
Lilo, too, was nervous—not from lack of experience like Nani, but because the two previous times when had done this, she’d felt close to drowning. But this time was different, because her stomach was rumbling in anticipation of being filled with a generous load of Stitch’s seed. And it pleased her that this was something she knew more about than Nani.
“Just start swallowing over and over as soon as he puts his cock in your mouth,” Lilo advised. “That way, when it gets to the back of your throat, it’ll just go right down.”
Nani felt a little odd hearing her six-year-old sister use the word “cock.” Then it occurred to her what a laughable thought that was, given that Lilo now had more sexual experience than many girls who were ten years her senior.
“Okay,” Nani replied. Then she looked up at Stitch. “I’m ready.”
Both girls opened their mouths. With his hands firmly holding the sisters’ heads in place, Stitch pushed his cocks in and then kept pushing steadily as the two girls swallowed repeatedly. The blue alien exhaled “Ahhhhhhh” at the pleasurable sensation of his two members going down two tight, slick throats simultaneously. Both girls’ throats bulged visibly, and the sight enhanced Stitch’s pleasure further.
“Good,” he breathed. “Good girls…”
Keeping his hands firmly on Lilo and Nani’s heads, Stitch fucked their throats at a slow, steady pace, going balls-deep on every thrust. Reflexive tears began to flow from both girls’ eyes, but Lilo and Nani both gazed up at Stitch, wordlessly begging him to cum, to shoot his plentiful load into their waiting stomachs that ached to be filled with Stitch’s hot, thick, satisfying seed.
Stitch fucked their faces faster and faster, his cocks making wet sounds deep in their throats as his thick shafts pulled back and plunged in over and over again. Nani gurgled and gagged, yet she did not want Stitch to stop for anything, so she put her hands on her big, bare breasts and fondled them, urging the well-hung alien toward his climax. Lilo saw this out of the corner of her eye and followed suit; she squeezed her growing tits, then pinched, pulled, and tugged her dark-brown nipples, all the while mentally pleading with Stitch to shoot his load down her throat and appease her aching tummy.
Watching both his girls fondle their tits soon had Stitch fucking their mouths and throats at full speed, his hips a blur of motion. The gagging sounds the girls made and the way the tears streamed from their eyes only added to his arousal, pushing him closer and closer to his climax until he finally crossed that sweet line of ecstasy.
“HrrrrrrAAAAAAAAAH!” Stitch cried, and he could feel the flood of seed emerging from within him and pulsing thickly down Lilo and Nani’s throats, filling and filling their stomachs. Both girls swallowed hard and repeatedly as they helped speed the pumping of Stitch’s cum directly into their bellies. Stitch saw both girls’ tummies expand with the sheer volume of his load, and the sight made his climax last even longer, such that he did not stop cumming until his body was well and truly empty of seed.
When it was over, Stitch stayed balls-deep as the girls used their throat muscles to milk his cocks of the last of his cum. Only when they finished did he pull his two thick, glistening shafts from the girls’ mouths until his cockheads emerged with a low, wet pop. Nani and Lilo both swallowed one more time, then gasped for breath.
“Girls feel better now, yes?” Stitch asked.
The two gasping girls could not yet speak, but they each nodded.
“Good,” Stitch replied. “We do again soon.”
The girls nodded again. Both Lilo and Nani felt certain that this special hunger would return.
“Now,” Stitch went on, “Lilo and Nani play with titties some more. Help Stitch get ready to fuck.”
***
That night, Stitch climbed into bed with Lilo as usual. But what he said to her wasn’t usual at all.
“Lilo bring new girl for Stitch.”
“W- What?”
“Stitch need another girl to fuck. Lilo bring one home.”
Lilo looked at Stitch with shock. Sex with him wasn’t so bad now, but she remembered very well how much each of her deflowerings had hurt. How could she bring another girl into the house and let Stitch do that to her?
“Maybe,” Stitch added slyly, “girl Lilo not like so much?
Lilo looked at him for a moment. Then she nodded slowly and said, “Okay.”
She already had someone in mind.
- 5
- 6
- 7
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Biological Imperative