So I actually went and drew them out.

The girls are the 2ps: Emma and Ella

The boys are the 2p!Nyos: Ryan and Riley.

They're full names are:

Emma Eva Thompson 

Ella Ava Thompson

Ryan Eli Thompson

Riley Kai Thompson

Emma likes to wear purple while Ella likes to wear pink.

Ryan likes to wear green while Riley likes to wear blue.

They're mischievous little rascals who are in every sense instigators and always finding trouble.
If they don't like you, good luck getting them to do anything but annoy you....
If they do like you, prepare to be glomped and tackle hugged at every turn and asked to play at every waking moment.....