checkback on the flop was mostly influenced by my 2 BDFD that really prefer a higher SPR and sux if I get check/raised OTF (some villains will bluffraise the flop with a bare pair).

On the turn BB stabs which he can do with a set but also 89T 9TJ maybe some 96xx so I think I need to call at least once.

River the 3 is better for his range because he can always have some random 3x and I have more highcard hands but the question is do we bluffcatch with this KK here? I mean I block 456 which he can also lead on the Turn but if I say had AATJ I would also block A45x and so on so it really boils down to what his preffered bluffing combos are no?

I think most likely bluff is 9TJx and 456x 2nd most likely. So that would mean I have to fold KK45 here right? And call with KK84 or KKQ2.