1/2 6max. - turned set completes FD

[vanHelsing]

~200 hands against villain.
She is LAG (somwhere around 80/25/3), a bit tricky and a bit of a calling station.
She sees me as TAG, she knows I raise a lot of hands in late position and that I am almost always auto-C-betting when HU.
I have seen her CR a baby FD once all-in with a 60BB stack. I can't remember ever having seen a massive overbet from her.

To the hand:
Party Poker No-Limit Hold'em, $ BB (6 max, 4 handed) converter

saw flop|<font color="#C00000">saw showdown</font>

SB ($287.25)
BB ($137.85)
UTG ($177.30)
Hero ($194)

Preflop: Hero is Button with 9[img]/images/graemlins/diamond.gif[/img], 9[img]/images/graemlins/club.gif[/img]. SB posts a blind of $1.
UTG calls $2, <font color="#CC3333">Hero raises to $10</font>, <font color="#666666">2 folds</font>, UTG calls $8.

Flop: ($23) K[img]/images/graemlins/club.gif[/img], 2[img]/images/graemlins/heart.gif[/img], 6[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
UTG checks, <font color="#CC3333">Hero bets $16</font>, UTG calls $16.

Turn: ($55) 9[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
UTG checks, Hero checks.

River: ($55) 7[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
UTG calls $151.30 (All-In), Hero?


How is my turn check behind?
Fold the river?

EDIT: btw, I'll stack her 100% of the times, when the board pairs and she has a flush.