$100NL - KK, too thin?

CO (who also posted posted blinds) is a huge fish running 89/21/3.4.
He isn't as aggro as his AF implies. He donk bets a lot, but he also folds to cbets more than most.
He has slowplayed in the past.

BB is a tagg reg who has floated me in the past and has called down with mid pairs on scary boards. He rarely raises cbets.

Comments on both turn and river appreciated.

$0.50/$1 No Limit Holdem
4 Players
Hand Conversion Powered by weaktight.com

Stacks:
CO ($201.20)
BTN ($100)
Hero ($103.50)
BB ($130.25)

Pre-Flop: ($3, 4 players) Hero is SB :kc: :kd:
[CO posts $1]
[CO posts $0.50]
CO checks, 1 fold, Hero raises to $5, BB calls $4, CO calls $4

Flop: :5d: :qh: :js: ($15.50, 3 players)
Hero bets $12, BB calls $12, CO calls $12

Turn: :5h: ($51.50, 3 players)
Hero bets $32, BB calls $32, CO calls $32

River: :ts: ($147.50, 3 players)
Hero bets $54.50 (all-in)

any reason to believe that BB flats QQ/JJ pre? either way i dont really see the question, you´re getting so much value Qx/Jx and ocassionally you get coolered by quads or the fishs 5x. i wouldnt check river ever given SPR and how unlikely the fishy is to value bet AQ/KQ/QJ/JT/QT

During the hand, I thought that the turn bet might be too thin.

I can't eliminate QQ/JJ from BBs range entirely, but it would be heavily discounted.

looks good to me, the only hand you're worried about is fish having 5x, but his range is so wide that you're still snap shoving river, esp given stacks.

Given the pot size and your stack left you have no real other option. Someone could call with worse just given the pot odds they will be getting.

id make bigger bets in this situation probably. river is a jam, not close

yeah I'm also betting bigger and river is snap shove for me