do you think selena and demi are bestfriends...?

Yes. Yes they are! Demi has done EVERYTHING with Selena. They BOTH don't like Miley Cyrus either!
Miley, even requested a skype to Demi and Selena. They both accepted. So Demi and Selena started arguing over skype with Miley and Miley's friend.
see? Thick and thin!

YES!!!! OF COURSE THEY ARE!!! THEY'VE BEEN BFF's SINCE THEY WERE IN KINDERGARTEN!!!!!!!!!!!!!!!!!!

I do think they are best friends, but they're definetly not as close as they used to be. Demi will always be there for Sel and vice versa. They've just grown apart.