Dipper Pines is a 16 year old boy who love the paranormal. He has had several encounters with the supernatural, but when a natural urge comes upon him, will he be able to resist?

Mabel Pines is a 16 year old girl, and the twin brother of Dipper Pines. She has a bubbly personality, but she cannot seem to attract any of the guys at her high school.

Despite their age, Dipper and Mabel still share a room, the only major difference being that the now each have there own bed. This has led to them being very personal with one another. One day, Dipper find's Mabel diary unlocked, and decided to take a quick peek inside. What he found in there shocked him. It said:

"February 15, 2016

I have come to a realization. I don't know how else to say it, but I believe I'm in love with Dipper, my own brother! I don't know what he thinks of me, but I don't want him to find out! He'll probably think I'm crazy or something!"

The day after, Dipper had a talk with Mabel about it.

"You did WHAT?!" Mabel exclaimed, shocked at the revelation. "I can't believe you would invade my privacy like that! What the hell, bro-bro?"

"I know I shouldn't have. I'm sorry about it," Dipper responded plainly.

"Wait, which entry did you see?" Mabel asked, now afraid that her secret might be out.

"February 15, 2016. The one where you admitted that you li-"

Suddenly, Mabel burst into tears. "Hey now, none of that" Dipper said, comforting her. "If it makes you feel any better…" Dipper pulled out his diary, and flipped to a very specific entry. He handed it to Mabel. The entry read:

"June 22, 2012

Now that me and Mabel have been bonding over the gnome incident, I've discovered that maybe she has something…different about her. I don't want to jump to conclusions, but I think I like her? Still trying to decipher my feelings."

He then flipped it to another entry, this time dated September 1, 2012.

"I can indeed confirm after this crazy ass summer, I love my sister, Mabel Pines. I thought it was Wendy, Candy, or maybe even Pacifica, but I was wrong the whole time. It was, and always will be, Mabel. I can't let her know, cuz she might freak out. I don't know. But, under NO circumstances, can anyone else know about this."

Mabel dropped the diary. She was at a loss for words, which never happens for her. Just when she thought it was over, Dipper leaned in for a kiss, although she was oblivious to this as she was still staring at the ground dumbfounded.

"Sorry, I didn't mean to make you cry again," Dipper apologized.

"No, no, it's fine. I just…I can't believe you read my diary, Dipper! That is so wrong! You are my brother, and I am your sister! How could you do that to me?" Mabel cried.

Dipper looked down at the floor. He knew he made a huge mistake. He felt bad for reading her diary, but he couldn't help himself.

"But I wanted to tell you. I really did. I thought you needed to know," Dipper explained.

"Well, thank god you told me, because if you hadn't, I would have never known! And I would have been miserable the rest of my life!" Mabel said, angrily.

Dipper looked up at Mabel, and gave her a hug. She then hugged back, and they held each other tight.

"It's okay, Mabel. I promise, I won't tell anyone. I swear on my life," Dipper assured.

Mabel nodded, and wiped away her tears.

"Thank you, Dipper. I love you too, bro-bro."

They both smiled, and went back to sleep.

That night, Mabel couldn't get Dipper's confession out of her mind. She was lying in bed, thinking about how he confessed his love to her. It seemed impossible, yet somehow it happened. She tried to convince herself that she wasn't going crazy, and that he truly loved her. She fell asleep not knowing what tomorrow would bring.

The next morning, Mabel woke up, and immediately checked her diary. To her surprise, it was still locked.

"I guess he didn't read it last night," she thought. "Good thing I didn't write anything else."

She grabbed her phone, and started texting Dipper.

"Hey Dipper, I just want to ask you something," Mabel wrote.

"Sure, what is it?" he replied.

"Did you read my diary last night?" Mabel asked.

"Of course not! I wouldn't do that to you, Mabel! I'm sorry if I scared you by looking in your diary, but I had to know," Dipper answered.

"I'm glad you didn't read it, but I need to know for sure. Did you read it?" Mabel asked again.

"Yes, I did," Dipper admitted.

"Why would you do that to me?" Mabel asked.

"I wanted to tell you how I felt, and I thought your diary was the best way to do that. I didn't want to say it in front of everyone, and I figured that you'd never notice if I snuck a look," Dipper explained.

"So you read it anyway? Why?" Mabel asked.

"Because I love you, Mabel. I've always loved you, and I want you to know that," Dipper said.

"Oh my gosh, I love you too, Dipper!" Mabel exclaimed.

"We're twins, we can't date!" Dipper said.

"You're right, but that doesn't matter! We can still be together!" Mabel said.

"Yeah, but…you'll hate me, and I'll hate myself. Our parents will kill us," Dipper said.

"Don't worry, we can figure it out. I'm not going to let anything happen to me, or you," Mabel reassured him.

"Okay, but you have to promise me that you won't tell anyone about this, especially our parents!" Dipper demanded.

"I promise, I swear!" Mabel said.

"Okay, good. Now go back to sleep, I don't want to wake you up," Dipper said.

"Okay, I will. Goodnight, Dipper," Mabel said, and kissed him on the cheek.

"Night, sis," Dipper replied, and they both fell back asleep.

Later that day, Mabel and Dipper were walking home from school.

"Hey, Mabel, I've been meaning to ask you something," Dipper said.

"What is it?" Mabel asked.

"Well, I was wondering...if you wanted to hang out with me tonight?" Dipper asked.

"Sure, I'd love to," Mabel said happily.

"Great! Do you want to meet up here? Or somewhere else?" Dipper asked.

"Let's just meet here, it's more convenient," Mabel said.

"Okay, I'll be waiting for you then," Dipper said, and he walked off.

Mabel sighed in relief. She couldn't wait to see him.

Dipper sat outside of Mabel's house, waiting for her. He had been waiting for a while, but she still hadn't shown up. He began to wonder if she was avoiding him, or if something was wrong. He decided to text her.

"Hey, Mabel, are you okay? You haven't showed up yet," Dipper texted.

"I'm sorry, I got caught up doing something. I'll be there soon though," Mabel replied.

"Alright, I hope everything is alright," Dipper said.

"Me too, but I'll see you soon," Mabel replied.

"Okay, bye," Dipper said, and he turned around and headed home.

Mabel was walking through town, thinking about how much she missed Dipper. He was the only person who understood her, and she knew that no one else could ever replace him. She was still trying to figure out how to tell him about her feelings, but she was afraid of what his reaction would be. She was also worried that he might hate her, or worse, tell their parents. She kept these worries to herself.

Suddenly, she heard someone call out to her.

"Mabel? Is that you?" a familiar voice asked.

She looked over, and saw Dipper standing there. He was holding a bouquet of flowers.

"Hi, Dipper! Thanks for the flowers," Mabel said.

"You're welcome. Are you ready to go to my place? I've been waiting for you," Dipper asked.

"Sure, let's go!" Mabel said excitedly.

"Hey, Mabel, come here for a second," Dipper called.

"I'm right here," Mabel said, coming over.

"Look at this," Dipper said, handing her a note.

"What is it?" Mabel asked.

"It's a letter from our mom. She wants us to come over for dinner tonight, so we can talk about something important," Dipper explained.

"Okay, I'll go change real quick. See you in a bit," Mabel said.

"See ya," Dipper said, and he left.

Mabel took the note and read it.

Dear Mabel and Dipper,

I wanted to apologize for not telling you sooner about my condition. I've always been ashamed of it, but now I realize it's time to face my fears. As you may know, I am a succubus. I feed on human energy, and the more energy I get, the stronger I become. Unfortunately, this means that I must drain the energy from my children every night. I don't want to do this anymore, and I'm willing to do anything to stop it. If you want to live normal lives, I suggest you find a way to drain me of all my power.

Sincerely,

Mrs. Pines

Mabel gasped. She had never heard of such a thing before.

"Wow, I didn't know our mother was a succubus!