AK tptk donked into on turn blank

villain is 22-5 over 100, has folded to a c-bet 3/10, has raised 2 cbets (once with a big hand, the other time he generated a fold). His turn aggression frequency is 20% (small sample)
This confused the hell out of me. What's my river plan if i call?

edit - note that we have the ace blocking turned flush draws a bunch

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

UTG ($51.25)
UTG+1 ($55)
MP1 ($55.65)
MP2 ($111.95)
MP3 ($60.60)
Hero (CO) ($52.75)
Button ($26.05)
SB ($50)
BB ($27.70)

Preflop: Hero is CO with K, A
4 folds, MP3 calls $0.50, Hero bets $2.25, 3 folds, MP3 calls $1.75

Flop: ($5.25) J, 9, A (2 players)
MP3 checks, Hero bets $3.75, MP3 calls $3.75

Turn: ($12.75) 3 (2 players)
MP3 bets $7