Weird relative hand strength spot 100NL.

[Carroters]

So this guy seems fairly nitty so far. I decide to just flat the flop. Not thrilled about getting this in obv vs a tightish player on a paired board, there are some worse draws I guess so maybe it's okay to 3/b call but I defo prefer flatting. I flat turn as I think a raise looks absurdly strong and I should get the rest vs his worse flushes on most rivers and allow him to keep bluffing. On this river the initial instinct is to just call off but on reflection I'm not sure he can have too much air here. Our hand is a bluff catcher and for him to have no sd value on turn/river he needs to have some kind of weird non club gut shot with a SC or maybe some totally random spew that contains no bdfd.

PokerStars - $1 NL (6 max) - Holdem - 6 players
Hand converted by PokerTracker 4

UTG: 112.3 BB (VPIP: 26.13, PFR: 22.78, 3Bet Preflop: 10.00, Hands: 610)
MP: 148.55 BB (VPIP: 20.00, PFR: 12.31, 3Bet Preflop: 6.90, Hands: 65)
Hero (CO): 118.4 BB
BTN: 100 BB (VPIP: 21.05, PFR: 15.79, 3Bet Preflop: 0.00, Hands: 153)
SB: 100 BB (VPIP: 26.71, PFR: 23.45, 3Bet Preflop: 6.56, Hands: 313)
BB: 61.19 BB (VPIP: 40.94, PFR: 12.08, 3Bet Preflop: 6.33, Hands: 150)

SB posts SB 0.5 BB, BB posts BB 1 BB

Pre Flop: (pot: 1.5 BB) Hero has A 3

fold, fold, Hero raises to 3 BB, BTN calls 3 BB, fold, fold

Flop: (7.5 BB, 2 players) 9 9 5
Hero bets 4.35 BB, BTN raises to 11.5 BB, Hero calls 7.15 BB

Turn: (30.5 BB, 2 players) T
Hero checks, BTN bets 20 BB, Hero calls 20 BB

River: (70.5 BB, 2 players) J
Hero checks, BTN bets 65.5 BB and is all-in, Hero?

[Renton]

fold, you lose to 12 combos. His most likely Kc is a straight flush.