A6s flops top two

[Hoopster81]

Villain is 30/17/3 over ~50 hands. I have not played a hand against him before.

Party Poker No-Limit Hold'em, $ BB (6 max, 6 handed) converter

BB ($63.41)
UTG ($155.95)
MP ($105.20)
Hero ($120.95)
Button ($149.60)
SB ($51.17)

Preflop: Hero is CO with 6[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/club.gif[/img]. SB posts a blind of $0.50.
UTG calls $1, MP calls $1, Hero calls $1, <font color="#CC3333">Button raises to $4</font>, <font color="#666666">1 fold</font>, BB calls $3, UTG calls $3, MP calls $3, Hero calls $3.

Flop: ($20.50) 6[img]/images/graemlins/heart.gif[/img], 2[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(5 players)</font>
BB checks, UTG checks, <font color="#CC3333">MP bets $15</font>, <font color="#CC3333">Hero raises to $45</font>, Button folds, BB folds, UTG folds, MP calls $86.20 (All-In), Hero calls or folds?