"Yes! This is the moment I've been dreaming about!" Dipper exclaimed as he stood next to the Mystery Shack bathroom door with a special object in his hand: the shrinking flashlight. Wendy was on the other side in the shower, and he was going to shrink himself to finally see her naked. "Okay, now all I have to do is-"
"Hey, Dipper!" Shouted Mabel, his twin sister.
"Agh!" Dipper screamed at the startling words. He quickly hid the flashlight behind his back. "Oh, uh, hey, Mabel."
"Watcha doing here?"
"Oh, you know just waiting for Wendy to finish showering so I can use the bathroom."
"What's behind your back?"
"Oh, I think it's something." Mabel reached for the device, but Dipper moved. Eventually, though, she managed to grab it. "The size-altering flashlight! I thought we destroyed this?"
"Well, we only destroyed the one gem. There's plenty more in the forest."
"Okay, but why would you need it now while your standing by the bathroom door in which Wendy is showering with no clothes on and..." Mabel gave a knowing smile. "Oh, I get it now."
"Come on, Mabel. Please don't stop me from doing this."
"Oh, no. I'm not gonna stop you. I'm gonna help you."
"Because, as creepy as it is, you're still my twin brother."
"Thanks! You can just shrink me down, then." Mabel aimed the flashlight and switched it on, therefore shrinking Dipper to around one inch tall. "Thanks a lot! Now I'll just slide under the door frame and-"
"Oh, I'm not done helping yet." Dipper was startled as his little sister's giant pudgy hand wrapped around him and lifted him up. Her giant face was adorable and frightening at the same time.
"Mabel, I appreciate the extra help, but I can get inside myself."
"Yeah, but I want to make sure you look nice for Wendy." She took her large finger and used it to brush through Dipper's hair.
"Mabel, stop!" Dipper exclaimed while pushing the finger away. "The whole point of doing this is to NOT be seen by Wendy."
"Yeah, but you never know. Now let's see how you smell." Dipper quickly approached Mabel's cute little-but now giant-nose. She inhaled with hurricane winds and accidentally sucked up Dipper. He was flown into a world of snot and boogers, even being forced to consume some.
"Oh, sorry about that, Dipper." She placed once hand in front of her nose and then used a finger on the other one to press on the nostril Dipper was not in. Then she blew hard and Dipper flew out in a giant snot rocket.
"Mabel, that was disgusting and now I'm covered in snot. Be more careful!"
"Don't worry, I'll clean you right up." Mabel opened up her mouth to let her tongue dangle out. Then she began licked her brother like a lollipop to remove her snot. Dipper screamed, but that only caused some saliva to be forced into his mouth. It was like Mabel had French kissed him. He shuddered at the thought of making out with his sister.
"Well, now the snot is gone, but I'm covered in your wet and sticky spit," Dipper complained.
"Not a problem!" Mabel pursed her lips and blew on Dipper. He felt his skin being pulled back from the sheer force of the wind, which smelled like Mabel's lunch. Luckily though it did dry him off.
"Okay, now everything is fine. Just let me go before Wendy finishes up."
"Alright, just one more thing. Girls love a guy who works hard and smells like it."
"Mabel, I don't have time to exercise and get all sweaty."
"I've got you covered there." Mabel said as she sat down and removed her sock.
"She's not doing what I think she's doing, is she?" Dipper thought.
"Okay, I have not changed my socks all week, so my foot should be good and sweaty."
"Mabel, please don't do this! I don't have to- ermph!" Dipper was cut off as his face was smashed against Mabel's sweaty feet. The combination of the smell and the taste of the sweat he was forced to drink was enough to make him puke, but he held it in. After what seemed like forever, the torment stopped.
"Okay, are you good now?" Mabel asked.
"I feel great!" Dipper lied so that Mabel would quit "helping."
"Okay, then I'll take you in." Mabel opened the door and walked inside. Wendy couldn't hear her over the sound of the water. Mabel looked around and spotted something that gave her an idea.
"Dipper, you can thank me later for this." He didn't even have time to respond before Mabel released her grip and he plummeted down. He feared death, but was saved by a soft tan material. Upon observation he noticed that the fabric was shaped like a bowl.
"Oh, no! She didn't..." But she did. Mabel had dropped Dipper into Wendy's bra cup. He tried to escape, but the sides were too steep.
"Alright, time to get this thing to a safe place," Mabel said to herself as she waved the flashlight around. Suddenly she lost her grip and dropped it. The flashlight hit the counter and turned on the switch long enough to shrink Mabel to Dipper's size. She shook her head out of dizziness and noticed that she was standing on some sort of cloth. She tried to figure out what it was until she heard the water turn off.