Hero BTN with A♠Q♠ (nut flush)

Multi-way Turn | 4-way: BTN | 96bb effective | Difficulty: Tough

Players in hand: UTG (limped), HJ (limped), Hero (BTN), BB

Hero hand

A♠Q♠

Board

K♠9♠4♣7♠

Action so far:
Four-way limped pot, turn brings 7♠ completing flush draws
HJ bets 8bb, BB folds
Hero BTN with A♠Q♠ (nut flush)

Pot: 16bb   To call: 8bb

Villain range: HJ delayed bet on the flush turn: smaller flushes (T-high, J-high suited), Kx-with-spade, two pair, sets going for value

Your move: