AK no goot on flushy board?

[givememyleg]

PokerStars No-Limit Hold'em, $0.25 BB (9 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

UTG+1 ($23.05)
MP1 ($33.55)
MP2 ($52.95)
MP3 ($14.25)
CO ($21.25)
givememyleg ($37.90)
SB ($9.75)
BB ($3.40)
UTG ($28.05)

Preflop: givememyleg is Button with A, K.
1 fold, UTG+1 calls $0.25, 2 folds, MP3 calls $0.25, 1 fold, givememyleg raises to $1.25, SB calls $1.15, 1 fold, UTG+1 calls $1, MP3 folds.

Flop: ($4.25) A, 5, K (3 players)
SB checks, UTG+1 checks, givememyleg bets $4, SB folds, UTG+1 raises to $21.8, givememyleg ......

Villian is Tight/Passive.... something like 12/1 over 100. Is this a flopped flush/55 most of the time against a passive? His AF is somewhere near 2.3.....

[Fnord]

AK/55/AA/KK maybe a flush. I don't see him playing enough hands with an unsuited Q or J to semi-bluff here.

Easy fold.

[andy-akb]

On a board like this with two pair my standard line is to lead for the pot and fold to a big raise [unless its from an absolute maniac]. From a passive player you are going to be beat here more often than not, fold.

[Fnord]

This is one of those strange hands where our hand looks g00t, but is really dogshit against his range.

[givememyleg]

This is one of those strange hands where our hand looks g00t, but is really dogshit against his range.

Ya after re-evaluating this hand I realized I made a nubular call... I guess I was hoping for AQd... instead I lost to his turned quad 5s.