3-bet pots with overcard flopping

[Berge20]

Assume reasonable villian
Assume we have position
Assume 100BB stacks
Hero is a reasonable TAG who hasnt been 3betting too light

You wake up with KK or QQ in LP. MP raises it 4bbs and you make it 12bb--MP calls.

Pot is 25bbs and the board comes 63Kr or 74Ar and it is checked to you.

How often do you C-bet here? How much do you cbet here? How do you react to the dreaded mini check raise?