Match the sibsets (random game)?

there are: boy and girl siblings (2) boy and girl twins (2) 2 brothers (2) twin girls and brother (3) boy and girl siblings (2) 2 brothers (2) 2 brothers (2) 2 brothers (2) 2 sisters and brother (3) 2 brothers and sister... show more there are:

boy and girl siblings (2)
boy and girl twins (2)
2 brothers (2)
twin girls and brother (3)
boy and girl siblings (2)
2 brothers (2)
2 brothers (2)
2 brothers (2)
2 sisters and brother (3)
2 brothers and sister (3)

Names:

Katie
Ash
Stephen
Keili
Ben
Luke
Andrew
Luke
Abi
Ben
Matthew
Alisha
Charlie
Andrew
Chris
Molly
Rebecca
Jake
Adam
Mason
Amber
George
Isabel

(i know there are some repeats- people with the same names)
closst to right answers get 10 points
6 answers 6