Villian is a reg who 3bets 10% btn vs CO.

I thought that he's most likely shuffing KK AA preflop, and maybe AK. On the river I tried to let him fold JJ,A10s and maybe KQs. I would like to hear some opionions about the turn+river. It feels it's to loose, than again AQs is likely the only hand I can dot this with as It's having the best blockers.
I appreciate all answer,but please try to explain with solid reasoning/math and not just give a answer.

Poker Stars, $0.50/$1 No Limit Hold'em Cash, 6 Players
Poker Tools Powered By Holdem Manager - The Ultimate Poker Software Suite.

Hero (SB): $235.67 (235.7 bb)
BB: $148.21 (148.2 bb)
UTG: $344.77 (344.8 bb)
MP: $163.11 (163.1 bb)
CO: $102.53 (102.5 bb)
BTN: $100.50 (100.5 bb)

Preflop: Hero is SB with A Q
2 folds, CO raises to $3, BTN raises to $8.50, Hero raises to $20, 2 folds, BTN calls $11.50

Flop: ($44) 2 K 9 (2 players)
Hero checks, BTN checks

Turn: ($44) T (2 players)
Hero bets $18.50, BTN calls $18.50

River: ($81) 4 (2 players)
Hero bets $197.17 and is all-in, BTN calls $62 and is all-in

Results:[spoiler] $205.00 pot ($2.80 rake)
Final Board: 2 K 9 T 4
Hero showed A Q and lost (-$100.50 net)
BTN showed A K and won $202.20 ($101.70 net)
[/spoiler]

I think that board is pretty good for most of his 4bet flatting range.

I don't think there is enough money behind to run a successful multi-street bluff either and the runout was terrible.

sounds spewy:/ , you can play it more safe

Why not just call instead of 4 betting? Youre turning your hand into a bluff not only preflop but every street after that. Hes most likely strong when he calls your 4 bet (especially according to what you wrote). Sometimes you call and other times you 4 bet depending on tje player but once youre called and that's the flop....give up ESPECIALLY when you give up the betting lead. Would you check aces, kings, AK on the flop? I dont think so. Makes his life so easy