I guess it wont last long because Josy seems much more interested in you than Maya, so i think that Maya and Josy will either have a fight about you or with you.
Josy is always around you, fucking with you when Maya is no here, so Maya will perhaps accept this for a while but one day she will realise that Josy doesn't know what she really wants as usual.
Josy is a yo-yo, once she likes you, then she choose Maya, then you again, then Maya again, then both of you, no reason for her to stop that up and down
She is just a horny little schrimp girl next door who just discovered the marvels of fuckalot !