[LibertarianLiz]

Also, wouldn’t Tyrion qualify as the “little” sibling?

[Boogieman]

Was that a dwarf joke?

[savage woman]

Couldn’t little sibling also be Aria?

Or maybe - I have seen no mention of Brianne. I think she
could possible take Cersei out for Jaime (she likes him).
Based on the look Jaime gave Cersei he objects to what she has done...