The Nightmare on Cherub Street/Chapter 4
"N-Nooo!" Billy cried out, thrashing in the darkness. "Billy, are you in there?" she heard a voice say. Hope filled her mind as she cleared her though. "YES! HELP ME!!!!!!" Light flooded her vision as Peter's face swam into view. "Why'd you lock yourself in the wardrobe, dummy?" he scoffed, pulling his little sister out. Billy stumbled to her feet, expecting to see slime everywhere... but she was spotless. As Peter let go of her hand, she gaped down at her clothes - the same clothes that had been disintegrated by the slime. Or... had they?
She stumbled back inside the wardrobe. "What are you going back in there for, stupid? Do you like it in there?" Peter scolded. "Wh-Where's the box!?" Billy stammered. The wardrobe was empty. "What box? he said, peering inside. He scowled and smacked her on the head lightly. "Pfft, nice one - fine, you got me. Mom said that dinner's ready so stop messing around and come down, I'm starving!" Peter flicked Billy's arm once, then turned and ran out the door, the floor creaking with every step he took. Billy could only stand there staring after him. What had happened to the slime creature... the box... She patted her belly, but it was completely flat. Hiking up her sundress, she pulled her panties down and stared at her pussy. It was as small and tight as it always was.
Waddling over to the huge mirror in the far corner of the closet, Billy stared at herself. It HAD happened, she was sure of it! She'd never been so sure of anything in her life - a tentacle slime monster has raped her for hours down in the cellar! But... there was no sign of it... nothing. That was, until she tugged her sundress up a little bit higher.
There was a mark on her belly, right below her navel. It was etched into her flesh, though it didn't hurt like it should have. The same mark that was all around the rim of that blackened wood door on the third floor - a small birdcage cage.
So lost in thought was she as she stared at her reflection in the mirror that she didn't know ten minutes had passed, and that Peter had been shouting her name down the hallway. "BILLY" she screamed, storming into the closet. "Hey, what the hell are you doin..." his voice trailed off as he stared at the mirror.
"Ahh. Admiring yourself naked? I... do that a lot. I know it's fun, but now's not the time, dummy." Billy didn't even blink, her eyes were still fixed on the reflection in the mirror of the brand on her belly. The brand that, Unbeknownst to her, Peter could not see.
Striding over, Peter pinched her naked bottom. "Do this when mom and dad aren't a second away from storming up here themselves. Come on..." Peter grabbed for her waistband, tugging her panties up... but stopped about halfway up her thighs. He blinked, and suddenly couldn't stop staring at her butt. He felt his boyhood rising in his pants as he stared at his sister's cute little bottom.
Unable to help himself, he reached out and gave one of her cheeks a firm squeeze with one hand. "You do got a cute butt, sis... I'm not complaining that I get to stare at it, heh." he whispered. Billy just kept staring blankly into the mirror, her eyes locked onto her bird cage brand.
Peter licked his lips, eyes fixated on Billy's 7 year old bubble butt. Before he knew what he was doing, Peter had pulled his penis out of his pants in a flash. He pressed up against Billy from behind, grinding his little 12 year old dick upright between his sister's ass cheeks. Peter grabbed his little sister's hips and began dry humping against her, his dick standing painfully erect as he bent it back against his own belly and humped up and down along Billy's bottom, squeezing her cheeks together to hot dog his little prick as he bucked upwards.
"Fuck, sis... God yes..!" he moaned as he pulled her little body closer to his, bucking harder against her bare flesh as Billy simply stood statue-still, seemingly completely unaware of what was happening. Peter used his baby sister like a sex doll as his hot breath beat down on her neck, raising goose bumps on her milky smooth flesh. "Oh god, yes! So good!" he panted, reaching around to grope at her pussy as he jackhammered her cute bottom up and down, watching it jiggle with glee.
He rimmed his sister's cunt with a finger, trying to force it inside. He managed to get only one in, but that was enough. The feeling of her soft baby lips parting for his invading finger sent him over the edge. Peter shot his load up Billy's dress, painting her back in his cum. "Ohhhhhhhh...!!!" he moaned as he shot another string up that fell back down to land on her bottom. It was by far the best orgasm he'd ever had..!
As the haze faded from his young mind, Peter realized what he'd just done. "SHIT!" he exclaimed, his heart racing as he pulled his pants back up. "Shiiit, I'm so sorry, Billy! I don't know what came over me..!" He ran back into the main room and grabbed one of the dolls, bringing it back in to mop up the cum he'd dumped onto her back and rump before it could stain her clothes. "Billy, ummm... D-Don't tell mom and dad about this, please? I'll make it up to you, I swear... Billy?" Finished with the mopping, he realized his little sister hadn't uttered so much as a single word... no, not even a single sound the entire time he'd basically raped her!
"Billy, are you okay??" Peter put a hand on his sister's shoulder and spun her around to face him. Billy's daze lasted for another moment as Peter looked her over worriedly, then she blinked once, twice, thrice. "P-Peter?" she said drowsily, before trying to move and stumbling before he'd forgotten to pull her panties back up. "Ehh?? How'd they fall down..." Billy mumbled with a blush, reaching under her pink sundress to pull them back up over her hips.
"Uhhh.. Y-You don't remember... anything..?" Peter asked timidly. "Hmm? Remember what?" Billy asked, looking at her brother with a raised eyebrow. Peter opened his mouth about to say something, then thought the better of it and shut it. If she wanted to pretend like it never happened, that was fine with him. "Uhh, nothing." He was trying to think of something else to say when a shout from downstairs neatly shook the rafters.
"BILLY! PETER! IF I HAVE TO ASK YOU AGAIN TO COME TO DINNER YOU'RE BOTH GOING TO BE GROUNDED FOR A WEEK!" came Norman's booming voice. "Crap, we'd better go!" Billy nodded blankly, and Peter practically dragged Billy down the hallway and down the stairs.
"What were you two doing!?" asked their father when they both stumbled into the kitchen. Dinner was set and both their parents were sitting at the table waiting for them. "Uhh, sorry dad... We were, uhh, playing hide and seek and Billy didn't want to lose by coming out." Peter pressed Billy down into one of the two empty seats and took the one next to her.
"Billy, you come when we call you. You know better." Wendy scolded her daughter. Feeling bad after what he did to her, Peter decided to take some of the heat off his sister. "Uhh, it was more my fault, sorry. I don't think she could hear me calling her from inside the wardrobe in her closet she was hiding in. It was a very good spot, heh..." Billy nodded, her eyes on her plate.
"Well, I guess we all don't know this house very well. I'm sorry I shouted at you Billy if you really couldn't hear us calling." Normal patted his daughter on the head, and Billy finally looked up at him. "Um, it's s'ok daddy. I know to come when you call, honest."
"That's my girl. Let's all have a nice family dinner, then maybe we can play a game together tonight before bed.~"
Chapter 5: Night Horrors