The next morning, it was Stan who woke up first. He left his room, still in his pajamas and with bags under his eyes. At the same time that he yawned, Sharon emerged from her bedroom, in her casual clothing.

"Good morning, Stan." She greeted.

"Oh. Hi, Mom."

She looked at Shelly's room. "Shelly didn't wake up yet, huh? I told her not to watch TV until late."

"Yeah, she really wanted to watch that movie."

"Oh, well. Could you wake her up? I gotta leave to work." Sharon headed downstairs. "Breakfast's on the table."

Once his mother was out of sight, Stan reached Shelly's door and knocked at it.

"Shelly? Shelly!"

In three seconds, the door opened and Shelly presented herself in her pajamas, with her hair all messy and also with bags under her eyes. She looked a bit unclean as well.

"Oh. You're up already." Stan commented.

"What is it, turd?"

"It was Mom who wanted me to…" He then inspected his sister's current appearance. "What happened to you? Were you working out?"

"It was hot last night, so I sweated a little." She answered, wiping her face clean.

Stan found that answer odd, since he didn't feel any heat during his sleep, so after some thought, he deduced that it happened while she was watching TV the previous night. All of the windows downstairs were shut, so the living room didn't have sufficient ventilation.

"You went to bed all dirty like that? Mom won't like that."

"Yeah, yeah. Anyway, I'll just take a shower, and then I'll go down."

Shelly then took a step back into her room and closed the door. Leaving his sister be, Stan went downstairs to eat his breakfast.

After finishing his breakfast, Stan needed to go to the bathroom. He went upstairs and reached the bathroom's door, stopping short of opening it so he could hear from the other side. There was nothing but silence.

I don't hear the shower. That means Shelly's already done with her bath, he concluded. And when he opened the door, he was shocked at what he saw. It was Shelly, in front of the mirror, all wet and completely naked. Stan reacted as he had just stared at the sun.

"AAAAAAAAAH!"

Shelly was startled as well. She instinctively used her arms to cover her breasts and vulva.

"GODDAMMIT, TURD, GET THE FUCK OUTTA HERE!" She yelled.

"I'm sorry!"

Stan quickly closed the door and retreated to the corridor. His heart was racing. While he tried to catch his breath, Shelly came out of the bathroom, still wet, her body covered with a towel and her face red with anger. She confronted her brother.

"You stupid turd, can't you fucking knock?!"

Stan recoiled, nervous. "I-I didn't mean to… I thought you were done with the shower already!"

"You little… I won't smack you now just because I have to get dressed. But you wait until I'm done!"

With her threat made, Shelly stormed into her room and slammed the door shut. Stan was now even more agitated.

Later that day, the two of them were at the couch watching TV. Shelly had the remote in hand and was angrily cycling through channels, while Stan just looked on, cautiously. She hadn't given Stan the beating she had promised to him, though she was still pissed about the whole bathroom thing.

After a few minutes enduring the tension, Stan finally gathered the courage to speak up.

"Shelly…"

"Don't talk to me." She interrupted.

"I told you it was an accident."

"I don't care!"

"Hey, it's not like I enjoyed that either!"

Shelly just ignored him and changed another channel. Stan then muttered to himself, frustrated.

"Damn, like if I hadn't enough of this at school."

Now Shelly couldn't ignore that. What could possibly be happening at Stan's school that had something to do with him seeing her naked in the bathroom?

"…What do you mean?" She questioned.

Stan sighed. "Every day, in the school, I have to deal with the Eighth Graders saying stuff like: 'Stan Marsh's sister is so hot', 'she got her mom's boobs', or 'I wish she was my sister instead'. You're like a muse to them!"

Shelly snorted at that revelation. "Urgh. Disgusting."

Apparently, she felt no pleasure in finding out that some kids, who probably just hit puberty, lusted after her. The fact that they originated from South Park Elementary only increased her disgust.

"That school didn't change a bit. Still the same turdhole."

"Come on, it's not that bad." Stan counterargued. In response, Shelly gave him a perplexed look, which could be translated as "seriously?". Stan quickly reconsidered what he said.

"Alright, it is that bad."

Shelly was satisfied that Stan agreed with her in that matter. At this time, most of her previous anger had subsided. All that left was the constant bad mood that she was known for.

"I'm glad I finally got out of that place. Don't have to deal with their bullshit anymore." She commented. And with that, she decided that she had enough of TV. She turned it off and got off the couch.

"Where are you going?" Stan asked.

"To do my homework. High school homework."

Now standing, Shelly tossed the remote on the couch and turned to Stan before leaving. "And when you go to school tomorrow, you can tell those perverts to go to Hell."

She went toward the stairs, leaving Stan alone on the couch.

"…I thought they were turds."

"They're both!"