I choose to agree with Suganthi...
We have seen many many J----m scenes which would have put an end to KS.They didnt,they have always teased us with such senseless and tasteless scenes.This is one among them.This vicky will not be their son,but they will take their own sweet little time to put an end to this misery.But finally,he will be adopted or like Suganthi said,Psychopath's previous hubby's child.She might have concieved his chile before he died....
I am going to wait till they prove beyond doubts that he is their son.Like in JW having flashbacks of the night he spent with her,or something along that line which underlines the fact that he did infact spend a night with her,with or without his complete sense.