Missed value? Straight vs. turned 3 flush

50/21 @ 14 hands. Did I miss value here? Is anyone raising the river bet? I went into call down mode when I hit the gross Td on the turn. Any other T and I'm good, but he's not slowing down. What do you think?

Full Tilt Poker $0.25/$0.50 No Limit Hold'em - 7 players - http://www.thehandconverter.com/hands/452900
The Official DeucesCracked.com Hand History Converter

UTG: $90.15
UTG+1: $50.00
MP: $62.35
Hero (CO): $52.25
BTN: $8.50
SB: $59.95
BB: $12.30

Pre Flop: ($0.75) Hero is CO with Jc Ad
UTG calls $0.50, 2 folds, Hero raises to $2.25, 3 folds, UTG calls $1.75

Flop: ($5.25) Qd Kc 8d (2 players)
UTG checks, Hero bets $3, UTG calls $3
Wary of the flush draw. Standard cbet.

Turn: ($11.25) Td (2 players)
UTG bets $5, Hero calls $5
He donk bets into me on the turn. Is anyone raising here? I have the Ad to backdoor, but if he has the 3 flush, I doubt he's folding it at any point. Is there a point to raising?

River: ($21.25) 4c (2 players)
UTG bets $9.90, Hero calls $9.90
Is anyone raising the river here? I'm scared because he continues to lead. Clearly, at a minimum, I'm making the call, getting 3:1.

Final Pot: $41.05
UTG shows Kh 9c (a pair of Kings)
Hero shows Jc Ad (a straight, Ace high)
Hero wins $39.00
(Rake: $2.05)
I'm happy with the value, but did I miss out on more value? Clearly, this is a fairly reckless player at 51/21.