Help! table just shrank, how to play A/K from SB after PFR?

[The Student]

Had only played a couple of orbits when the 9-max table shrunk to 6-max and this hand came up. I don't play 6-max and in 10-max I rarely re-raise with A/K PF unless I have a pretty good read on the original PFRaiser (which I didn't here). So I just called PF.

I'm interested in feedback on all streets.

PokerStars No-Limit Hold'em, $1.00 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

BB ($132.35)
UTG ($39)
MP ($171.05)
CO ($80.55)
Button ($99.95)
Hero ($98.20)

Preflop: Hero is SB with A[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/club.gif[/img].
<font color="#666666">3 folds</font>, <font color="#CC3333">Button raises to $5</font>, Hero calls $4.50, <font color="#666666">1 fold</font>.

Flop: ($11) 2[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $8</font>, <font color="#CC3333">Button raises to $16</font>, Hero calls $8.

Getting over 4:1 here, so I just called the MR, although I'm no longer sure I want to see an A or a diamond. Anyone fold here?

Turn: ($43) T[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, Button checks.

River: ($43) T[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $25</font>, Button calls $25.

I bet here thinking that his min-raise on the flop, especially when followed by the turn check, could be a diamond draw that missed. Anybody think this isn't worth taking a shot at?

Final Pot: $93

Thanks,

ts-