Do Ты know that Phineas and Isabella Kiss in summer belong to Ты

They DID Kiss in the movie,but not "Summer belongs to you"

Well if Ты mean the 44:11 part that is not a Kiss just looks like one

yes at first i was like ???? then i was like what is isabella doing then she said

Isabella:so major monogram
MM:yes
Izzy:none of us will remember any of today *looks at Phineas*
MM:that's right
Izzy:good *kisses phineas*
Phineas:ISABELLA
Isabela:hit it carl
Phineas:wait,wait,wait