PokerStars 2/4 Hold'em (5 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

Preflop: Hero is BB with 4, T. UTG posts a blind of $3.
UTG (poster) checks, MP calls, 2 folds, Hero checks.

Flop: (4 SB) 9, Q, J (3 players)
Hero bets, UTG raises, MP folds, Hero 3-bets, UTG calls.

Turn: (5 BB) Q (2 players)
Hero bets, UTG raises, Hero 3-bets, UTG caps, Hero calls.

River: (13 BB) 2 (2 players)
Hero checks, UTG bets, Hero calls.

Final Pot: 15 BB

I'd have to think a boat or higher flush is pretty unlikely here.

UTG posted so unless that's a mistake, he's probably terrible.

He can't have QQ or JJ here though, and almost never 99.

Q9 and QJ are possible though.

We've got the 3rd nut flush, which means it's more like he's got a lower flush than a bigger one.

I'm debating the turn 3-bet, but I think given the above info, it should be ok.

One he caps, the rest is fine. Just hit your Kh next time.

I play it the exact same.

Villain's turn raise tells me that he has the Q and just turned trips.
His cap suggests that he may have more as he seems to not fear the Flush despite all of our aggression.
So I check-call the river as you did.

Well played.

--CM