NL 50 river decision with AQ

[Babalatexi]

No reads on villain. When he calls the flop I put him on a set, J, Q or 9T. I checked the turn to induce a bluff if he had air and to keep the pot small if he had trips/a boat and because only one draw was live. The straight makes it on the river. Is villain ever double-barrel bluffing here? Can't see him betting any made hand that I beat. I assume I should've bet/folded the turn but I feel I might get easily bluffed off my hand then. As played, fold river?

B2B No Limit Hold'em Cashgame
Blinds: €0,25 / €0,50
Players: 5

Button (€50,00)
SB - Hero (€68,70)
BB - Villain (€66,32)
UTG (€42,15)
CO (€232,55)

Preflop: Hero is SB with A/images/graemlins/club.gif, Q/images/graemlins/spade.gif
<font color="#666666">3 folds</font>, <font color="#CC3333">Hero raises to €1,95</font>, Villain calls €1,45

Flop: (€3,90) J/images/graemlins/spade.gif, 5/images/graemlins/heart.gif, Q/images/graemlins/club.gif <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets €3,00</font>, Villain calls €3,00

Turn: (€9,90) J/images/graemlins/club.gif <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Villain bets €6,50</font>, Hero calls €6,50

River: (€22,90) K/images/graemlins/diamond.gif <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Villain bets €11,00</font>, Hero?

[dmoney]

ya, fold. u dont beat anything. if he calle with at worst KT then ur still toast.

u saw river cheap, now ur 99% sure ur beat. fold