Both budgies are pied (first pic is recessive pied, second pic dominant pied), and in young pied budgies there can be a bit of pink even on females, I've had it happen with my recessive pied chick Peppy, she at first had a pink cere, but it didn't have the translucent quality typical on young males, it had the same consistency and colour I'm seeing on that last pic of your budgies.
As time went on, the white has spread more evenly throughout the cere and the doubts ended.
I'm still going with two girls, being more sure of the yellow face sky blue dominant pied greywing.
RIP sweet Tito (Summer 2008 - January 17th 2013).
You are missed and never will be forgotten.