So just to point why they are waiting for him.
Andrew is Meara's Older brother but isn't Kayleen's
Remember they are step sisters.
Axelle saw some hidden pics of Andrew in Meara's room and since she knows he is coming along to visit his sister she tries to get closer to the little girl...
First part of the story
A: The cutest guy ever will arrive soon...
He is Meara's Brother
M: I'm sad, it's taking too long! I want him here now!
A: Don't be sad sweetie, he will be there soon!
M:He will laugh at me! I didn't gorw up since the last time he saw me!