$5.5 AKs hit flush draw on flop. Turn?

[Unknown Soldier]

Seat 3: utg+1 ($1,370 in chips)
Seat 4: mp1 ($1,720 in chips)
Seat 5: hero [KD,AD] ($1,470 in chips)
Seat 6: co ($1,300 in chips)
Seat 7: bb - villain ($1,380 in chips)
Seat 8: sb ($880 in chips)
Seat 9: bb ($3,230 in chips)
Seat 10: utg ($3,650 in chips)


PRE-FLOP
utg calls $30,2 folds, hero bets $150, 1 fold, villain calls $150,1 fold, bb calls $120, utg folds.

FLOP [board cards 5D,3D,JS ] (3 players t495)
bb checks, hero bets $350, villain calls $350, bb folds.

TURN [board cards 5D,3D,JS,6C ] (2 players t1195)
hero?

whats my line?