AK on monotone board gets raised AI on the flop

[2outs]

Villain is 16/7/1.1

Poker Stars, $0.50/$1 NL Hold'em Cash Game, 8 Players
LeggoPoker Hand History Converter

MP2: $106.85
CO: $100
BTN: $96
Hero (SB): $136.90
BB: $100
UTG: $173.45
UTG+1: $66.10
MP1: $97.70

Pre-Flop: A[img]/images/graemlins/spade.gif[/img] K[img]/images/graemlins/diamond.gif[/img] dealt to Hero (SB)
2 folds, <font color="red">MP1 raises to $4</font>, 3 folds, <font color="red">Hero raises to $14</font>, BB folds, MP1 calls $10

Flop: ($29) K[img]/images/graemlins/club.gif[/img] 5[img]/images/graemlins/club.gif[/img] 9[img]/images/graemlins/club.gif[/img] (2 Players)
<font color="red">Hero bets $20.50</font>, <font color="red">MP1 raises to $83.70 and is All-In</font>, Hero folds

When this villain called my r/r preflop I put him on a fairly tight range. I flopped a King, but then villain shoves over the top. I feel that the least I can hope for is that we have the same hand, but villain might even have the Ac along with it. So I don't think I can beat anything here. Good fold? Anything you would have played differently?