2/4 BD flush came

[smartalecc5]

After only 80 hands on villain he is at 32% vpip /15pfr/ 2.1 agg. When my Bdraw flush comes in on river call really doesn't cross my mind, so I decide to raise. How much to raise to. What about if villain pushes over my reraise.

Party Poker No-Limit Hold'em, $ BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

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

UTG ($261)
MP ($374.70)
<font color="#C00000">Hero ($608.79)</font>
Button ($421.10)
SB ($151.60)
<font color="#C00000">BB ($354.70)</font>

Preflop: Hero is CO with 6[img]/images/graemlins/heart.gif[/img], 7[img]/images/graemlins/heart.gif[/img]. SB posts a blind of $2.
<font color="#666666">2 folds</font>, <font color="#CC3333">Hero raises to $15</font>, Button calls $15, SB (poster) calls $13, BB calls $11.

Flop: ($60) 9[img]/images/graemlins/heart.gif[/img], 3[img]/images/graemlins/spade.gif[/img], 6[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, BB checks, Hero checks, Button checks.

Turn: ($60) 4[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, <font color="#CC3333">BB bets $25</font>, Hero calls $25, Button folds, SB folds.

River: ($110) T[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets $45</font>, <font color="#CC3333">Hero...