villains know I c-bet, have recently seen that I'm full of shit, and aren't gonna be folding their pairs here (both players pre-flop range 22-99, plus an SC for "polarisation" - FU cardrunners)

Turn I'll see what happens, Q hit my range reasonably hard - I'd often re-raise AK here but they wouldn't expect that... River is fine, villain doesn't lead turn with 33. So, I've got good showdown value so calling is fine. However, I think the shove looks bluffy AcKc enough that I might get a call from a beaten midpair. Thoughts? too thin?

Full Tilt No-Limit Hold'em, $0.50 BB (9 handed) - Full-Tilt Converter Tool from FlopTurnRiver.com

MP2 ($58.70)
MP3 ($51.95)
CO ($30.10)
Button ($24.30)
SB ($100)
BB ($91.70)
UTG ($36.45)
UTG+1 ($49)
Hero (MP1) ($50)

Preflop: Hero is MP1 with A, Q
UTG calls $0.50, UTG+1 calls $0.50, Hero raises to $2.75, 6 folds, UTG calls $2.25, UTG+1 calls $2.25

Flop: ($9) 2, 2, 4 (3 players)
UTG checks, UTG+1 checks, Hero checks

Turn: ($9) Q (3 players)
UTG checks, UTG+1 bets $5, Hero calls $5, 1 fold

River: ($19) 3 (2 players)
UTG+1 bets $12, call or shove?