Celestia sat in her room. She was holding her breath and holding her eyes shut. The only thing that was plastered to her mind was Twilight in spandex shorty shorts. Her face was blue. Luna watched the agony from her room. She snickered to herself.
"She's about to break! She'll do it! I know she will!" Luna watched her sister writhe and squirm on the bed. Celestia stretched herself repeatedly. She was moaning and swearing loudly. Luna put her hoof on her lip and tilted her head. Celestia was beginning to sweat. Luna's eye twitched a bit. Without her realizing, she put her hoof between her legs and rubbed herself. She rested her eyelids and moaned a bit. She closed her eyes. After a minute she opened her eyes wide and swept her hoof away.
"The fuck am I doing?! This is… no!" Luna put the monitor back on the table. She sat still, gazing into oblivion. "I didn't do that," she said as she grabbed her crown off the table. She put it on and headed to Celestia's room. She went to open it, but remembered to knock. She knocked three times and heard nothing. She knocked again. Nothing. She opened the door to see her noble and proud sister under the blanket with her head under the pillow.
"Sister?" Luna walked toward her. She reached over and lifted the pillow. "Sister, come o—JESUS!"
Celestia stared at her. She was foaming at the mouth and had bags under her eyes. Her eyes were bloodshot and her pupils were almost invisible. She was twitching like crazy and she was in the fetal position.
"I can't go on, Luna," she said in a very threatening voice, "I can't do it! Thebet'soffweneedtocallthebetoffcan 'tyouseeyou'reruiningmylife?!"
Luna was actually kind of scared. "Tia? Are… you… okay?"
Celestia sat up and stared at her with a very eerie smile. "Okay?! I'm more than okay, Luna! I'm perfect. I'm fine. I'm good. I'm alright. I feel fine. Couldn't be better. I'm okay. I'm perfect. I'm fine. I'm good. I'm alright. I feel fine. Couldn't be better. I'm okay. I'm perfect…"
Luna stared at her poor sister and eased her way out of the room which was kind of rank. She sat down on her bed and tried to comprehend what she just saw. She looked over at the monitor. Her sister was staring at the door, her head tilted slightly.
"…I feel fine. Couldn't be better. I'm okay. I'm perfect. I'm fine. I'm good. I'm alright. I feel fine. Couldn't be better. I'm okay. I'm perfect. I'm fine. I'm good. I'm alright. Couldn't be better. I'm okay…"
Luna shuddered and turned off the monitor. She decided she would take a walk outside. She opened her door and screamed. Her sister stood there.
"I'm perfect. I'm fine. I'm good. I'm alright. I feel fine. Couldn't be better. I'm okay. I'm perfect. I'm fine. I'm good. I'm alright. Couldn't be better. I'm okay."
Luna backed up and stood on her bed as her sister inched toward her. Celestia was up in Luna's face.
"I-i-i-i-i-i-i-i-i-i-i-i-i-i-i-i-i-i-i-i- I'm f-f-f-f-f-f-f-f-f-f-f-f-f-f-f-f-f-f-fine!"
Luna was truly afraid.
"S-s-sister? Just… just calm down. The… the bet's almost over. There's only two and a half days left…"
"Two and a half? Not enough! Extend it! Give it another week, no, a month, no, a year! I can handle it! I can go another year without tasting anypony's vaginal juices *twitch* in my mouth *twitch* on my face *twitch* down my throat *twitch*"
Luna looked away repeatedly.
"What's wrong, Luna?! Feelin'… NASTY?!"
Luna could think of nothing else to do. She reared back and slapped her sister as hard as she could. Celestia fell off the bed and held her cheek. She sat down and straightened herself. She blinked her eyes a few times and looked around.
"How did I get here? I thought I was in my room sleeping…? Luna?"
"I'll… tell you later. Whew…"
-A few hours later-
Luna was in her game room playing Sonic Colors while Celestia was in the pool. "Come on, get the ring. Get the ring. Get the ring! Get the ring! GET THE RING! GET THE FUCKIN' RING! NOOOOOOOO!" She threw her head back as the blue 'game over' text appeared on her screen. "Damn it! Fu-hu-hu-huck!" Luna clicked on the Wiimote to see how much battery life was left in it. She went to click on one of the icons but accidentally clicked 'turn vibrating off.' She sighed and threw down her arms in frustration. Without lifting them, she clicked on 'turn vibrating on.' The Wiimote vibrated for a second on her leg. She twitched a little. She got an idea. She held the remote on her crotch and repeatedly clicked the button, making the remote vibrate quickly. She moaned loudly. She giggled to herself. She looked down at the remote and sighed. "One time can't hurt."
She went into her room and opened up her closet. She got her Nintendo Store bag and opened it to see a long red vibrator. She held it in front of her face and smiled as she clicked the button, making it vibrate out of control. "One time can't hurt."
(She bought it just in case. She never used it.)
6:30 (She had already raised the moon)
Luna heaved her chest and looked over at the wet vibrator. "One… more… time…"
6:45
"One… more… time…"
7:30
"One… more…"
9:00
"Oh… god… one… more…"
11:20
Luna had an ice pack under her bum. She could hardly breathe and she had changed the sheets at least four times. Her horn was numb and she was blushing like mad. She had sucked the batteries for the big mac dry. She fell asleep.
Celestia could hear it all. The moaning, the squeaking, the swearing, all of it. She felt as if she were about to explode.