The Morning After

Dipper laid on his bed as he stared at the ceiling. The morning rain provided a soothing rhythm as the raindrops drummed against the roofing. Dipper sat up in his bed and looked around the tiny bedroom; his sister was already gone. To be honest, he didn't really blame her, not after last night. Dipper remembered only a few brief moments of their encounter the night before, but it was probably for the best that he not remember the whole thing. He remembered that it started with his sister approaching him in the evening...

 

 

"Dipper, I need to talk with you." Mabel said as she closed their bedroom door behind her. Dipper sat on his bed as he poured over the unknown diary with the "3" emblazoned on its cover. He was going over a page about treetures before his sister entered the room. He set down the book and looked up at his sister, a pencil stuck between his teeth.

 

"What is it Mabel, I'm a little busy here" Dipper said as he scribbled a note on a piece of paper.

 

"No Dipper. It cannot wait," Mabel said as she inched towards Dipper "It's important."

 

Dipper sighed as he placed the paper and diary on the night stand. He turned towards his sister, giving her his undivided attention. "Alright Mabel, what is it?"

 

"Dipper, I...I like you" she said flatly

 

"M-Mabel, I like you too, we're brother and sister!" Dipper responded.

 

"No Dipper, I like-like you" Mabel inched forward

 

"Mabel, what's this about? I already know that"

 

"No you don't get it" she said as she slowly removed her Meow-WoW sweater and threw it to the ground, "I like you. A lot." She peeled off her T-shirt and tossed it next to her sweater. She was clad in her training bra and her dress now.

 

Dipper inched back a little on his bed until he was up against the bedroom wall. A tightness started to form in his pants. "Mabel...I"

 

Mabel continued her slow march forward as she unbuttoned her skirt and let it fall to the ground. Stepping out of it, she climbed onto Dipper's bed and sat on top of him. She positioned herself just above his knees, placing her hands on his crotch.

 

"M-M-Mabel, what are you doing? We're brother and sister!" Dipper exclaimed. The bulge that slowly started to form betrayed his real feelings. "What if Grunkle Stan or Wendy came in, what would they think?"

 

"I don't care anymore, Dipper. I don't care what anybody thinks. I want you" said Mabel as she freed his penis from the confines of his shorts. Stroking it, she felt his cock throb in her touch, sending a shiver down her spine. She pulled her panties to the side and raised herself up. Positioning his penis at her entrance, she plunged down on it drawing in his full length. Dipper's protests were silenced as the new sensation of her tight, wet canal surrounded his member. Dipper hesitated before placing his hands around her waist.

 

"Neither do I, Mabel" said Dipper quietly. Mabel placed her arms around Dipper's neck as she began to pump herself up and down on Dipper's cock. Another wave of sensations overcame Dipper as his sister pumped away. Dipper being the puberty-ridden teen that he was didn't last very long, as he rapidly approached his limit. The warmth of Mabel's young pussy combined with her rapid motions quickly brought him to orgasm. He shuddered as he launched his sperm into her hungry snatch. At the same time, Mable's snatch clamped down on Dipper's dick as she came. Spent, Mabel collapsed onto Dipper, who was already reclining on the bed. They spent a few moments catching their breath before Mabel re-positioned herself. They went at it again, and again and again.

 

-----

 

The memories caught up with Dipper as he sat alone in the cold bedroom. He was silent for a few minutes before getting out of bed. He put on his regular clothes before heading down to the kitchen. Mabel sat at the table, staring into an empty bowl. Dipper crossed the kitchen and poured himself a bowl of cereal before sitting down at the table. He placed a few soggy spoonfuls into his mouth before he looked up at his sister. The whole time that he was sitting at the table she was looking at him. The lust he remembered from last night had disappeared from here eyes, only to be filled with shame and embarrassment. Was it raging hormones? Genuine love? They'd never know. Mabel stared back at her brother for a few more seconds before looking down into her empty bowl. Dipper stared as his as he ate in silence. Their sibling dynamic had changed, there was no going back.

 

All Mabel wanted was some damned cereal.