Villain is 18/9/1.5 and folds to cbet 65% over a large sample.

PokerStars No-Limit Hold'em, $2 BB (9 handed) Poker-Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

Hero ($201.20)
UTG+1 ($264.05)
MP1 ($40)
MP2 ($200)
MP3 ($282.60)
CO ($62)
Button ($87.15)
SB ($201)
BB ($227.10)

Preflop: Hero is UTG with T, 9.
Hero raises to $8, 3 folds, MP3 calls $8, 4 folds.

Flop: ($19) 5, 7, A (2 players)
Hero bets $16

Note that we have backdoor draws, a decent flop for c-betting on, and our range as a TAgg hits the flop really hard.

If you're going to c-bet in any particular spot, you should know exactly why your c-bet is going to be +EV.

So let's hear what you guys think.

Also see A Good Example of When Not to C-Bet.