NL100 AK flops nutflush draw in 3bet pot

[xeanatic]

Villian runs 15/12 over 33 hands no reads.
what do we do on the turn here?

Poker Stars, $0.50/$1 NL Hold'em Cash Game, 4 Players
LeggoPoker Hand History Converter

UTG: $44.50
BTN: $92
SB: $13.20
Hero (BB): $115.85

Pre-Flop: K[img]/images/graemlins/diamond.gif[/img] A[img]/images/graemlins/diamond.gif[/img] dealt to Hero (BB)
UTG folds, <font color="red">BTN raises to $3</font>, SB folds, <font color="red">Hero raises to $10</font>, BTN calls $7

Flop: ($20.50) 6[img]/images/graemlins/diamond.gif[/img] 4[img]/images/graemlins/club.gif[/img] 7[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">Hero bets $15</font>, BTN calls $15

Turn: ($50.50) J[img]/images/graemlins/heart.gif[/img] (2 Players)
Hero ?