Why does this girl remind her so much of Ruby? Oh wait. Pink instead of red hair, cheerfulness, trying to drag her somewhere instantly and also that instant friendliness towards her... It would be a huge miracle if her partner didn't come to mind from this girl right now.

"Wha-- Hey!"

Weiss is so surprised by her actions but on the other hand, she's actually not even resisting the whole Mana grabbing her arm thing at all. At least not physically but verbally might be another thing. Nor will she resist if (or more like when) Mana walks them to that sleigh.

"What makes you think it will be fun? We've never even met."