I don't own Gravity Falls.
"That one looks like a cute, fluffy bunny!" Mabel laughed, pointing in the sky at one of the many clouds lazily floating along. Her long, dark brown curls were sprawled behind her as she lay on the grass. Bill, who was laying vertically to her, his head resting on her stomach, made a sound of recognition.
"It does. Though I think the 'fluffy' part may be a bit redundant, dear. It is a cloud, after all."
Mabel playfully whacked Bill's nose, before looking back up and gasping happily.
"Bill! That one looks like you!"
He sat up slightly, looking to his companion in surprise.
"What?"
"Your original form! It's a triangle with a little top hat and little arms a legs! See!" Bill looked to where she was pointing, his uncovered eye slightly narrowed. When he saw the cloud Mabel was referring to, the eye widened quickly and a deep blush spread across his face.
"... So it does."
"It's really cute!" Mabel giggled as she sat up as well. As Bill started glaring at her, she smirked cheekily.
With a huff, he looked back at the sky, only for a grin to slowly grow where a pout had been moments before.
"And that one looks like you!"
Mabel rose an eyebrow before putting her head next to his, trying to see what he was getting at.
"Where? How?"
Still smiling, he turned his face towards her.
"Why, it's a star! Just like you, my little Shooting Star! Isn't it adorable?"
Sighing, she pushed his face away from her.
"Your's is cuter."
"Nope, the star is far more cute. Just like you."
"Well, you have one thing right. I'm absolutely adorable."
Going closer to her, Bill brought his face inches from Mabel's.
"No disagreements there, Shooting Star."