When I first beat the game a few days after it first came out, I actually couldn't really tell what Daisy and Peach were doing. It was a little too quick for me to notice. I found the ending scene on YouTube shortly after though.If you didn't already know, Peach and Daisy are my favorite female video game characters, and I adore their friendship. Definitely my favorite friendship pairing in Mario.
Is Daisy holding Peach's hand or holding onto her wrist? I can't tell. XD But if this isn't enough proof that Peach and Daisy are BFFs, then I don't know what is. I mean, they're clearly very close to each other in the Mario games and go far enough to call each other "sisters-in-arms."
Thought someone might be interested in seeing this. Oddly enough my most popular post on Tumblr is about this, where I just posted three snippets I took from the ending scene of Daisy and Peach together. Daisy and Peach also interact in the ending scene for the Sochi Winter Olympic Games. They jump into the air and then high-five, and then it looks like they stare at each other while holding each other's hands. :P
(Peach standing beside Bowser here is pretty funny.)