Mabel doesn't like the sound of that. Any of it, honestly. She's not entirely sure she'd trust a defenseless(?) cat to this guy. He's kind of mean.

"Wait! What if I catch him? Can I keep him?" Look, she's turning up the charm. Big eyes, cute smile. Too bad Dipper isn't around to play up the twin cuteness. But, Mabel's pretty good on her own.

"Pleeeeease? Please please please?"