After Pacifism (Undertale Rp for Jbone77777)
 

Frisk yawned as she woke up, snuggling a cute dog plush that Toriel had gotten for her awhile back. She rubbed her eyes and sat up, looking around for her brother.

Asriel and Frisk shared a room. They always had. They'd been like brother and sister ever since they'd met, and she'd... well, she saved him. Asriel would be forever thankful. And there was nothing he'd liked more than going on adventures, playing with, or even just hanging around with Frisk. Ever before she came, his life was literally devoid of emotion, and it was a stretch to even call the time as a flower "life". But now, he had meaning. Purpose.

Asriel's eyes slowly opened, and the goat-boy let out a yawn, rubbing his eyes and sitting up groggily. "Frisk?" He asked, question morphing into a yawn as he looked over and saw her sitting up in her bed.

Frisk yawned with her older brother and smiled. "Yeah? What is it?" She stretched and sighed, yawning again.

"Oh." Asriel yawned again, rubbing his eyes. "Hm...? Nothing, nothing... tired." He mumbled. "I didn't get much sleep last night. And I saw you sitting there, I didn't know if you were talking to me or something..." he mumbled sheepishly, scratching the back of his head. He rolled out of bed and pulled some pajamas on, yawning.

Frisk got up and waddled over to their wardrobe, pulling out a cute dress. "Hey, you need a diaper change?"

"Uh... yeah Frisk." Asriel said, somehow his cheeks turning red which was visible even with his fur. "Uh... how about you? You need one sis?" He asked, still blushing and trying to change the subject.

Frisk giggled. "I do, but let's get you changed first."

"Okay..." the boy grumbled. He stood up and laid down on the rug, spreading his legs and getting into position to be changed.

Frisk giggled and got out on of her girly diapers and the changing supplies. "Wanna dress too?"

Asriel blushed harder and rolled his eyes. As per usual, Frisk took the lead. And it was hard to say no to her. Asriel never did; he always went along with her. "Uh... whatever you wantz." He relented