200NL Nut flush draw on flop

[nogenius]

PokerStars No-Limit Hold'em, $2 BB (8 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

MP1 ($162.25)
MP2 ($216.80)
Hero ($199)
Button ($79.10)
SB ($91.60)
BB ($23.35)
UTG ($125.70)
UTG+1 ($307.75)

Preflop: Hero is CO with A, Q.
1 fold, UTG+1 calls $2, 2 folds, Hero raises to $10, 1 fold, SB calls $9, 1 fold, UTG+1 calls $8.

Flop: ($32) 4, K, 9 (3 players)
SB checks, UTG+1 bets $20, Hero ???

---

Villian was a 40/15/3 over 40 hands.

What's your move here?

[Miffed22001]

raise.

[a500lbgorilla]

Hmmmmmmm 44 is all we're afraid of here. I dunno if i wanna call and see a turn so that it probably becomes a big pot in my favor or raise what appears to be a very weak move. (Leading when you just limp/call on a board that isnt like 476)

[veryrocky]

i would miN-raise to figure out where he's at and to take the lead in the hand... if there is no reraise on the flop you can lead out on the turn or get a free card for the flush..