Guardian of Fun, Spirit of Laughter

I figure they'd get along pretty well.

They could make SNOW PARTIES.

But in all seriousness... actually, forget the seriousness. We're dealing with Mr. Ice Prankster and the Fourth Wall Queen here, there's no such thing as seriousness.

But I'm pretty sure that Pinkie Pie is the best weapon against Pitch that you could possibly have. She would just... well, for starters she wouldn't take him seriously at all. She'd just sort of giggle at him and make comments on his hairstyle and skin tone. Of course, she does have a very glaring fear of losing her friends or being unable to make them happy, but she's already learned a bunch of life lessons about how to deal with that.

But yeah. I'd just love to see fanfics or something with these two interacting. We already know Pinkie Pie loves ice skating, they both have Prankster's Gambits that are through the bucking roof, and also SNOW PARTIES.

Pinkie Pie (c) Hasbro
Jack Frost (c) William Joyce, Dreamworks

I am incredibly proud of myself for actually pulling off the frost effect on Jack's hoodie. Not to mention his hair.