NL25 turned set on ugly board line check

[WantToLearn]

Some advice needed here, thank you very much!

PokerStars No-Limit Hold'em, $0.25 BB (8 handed) Poker Stars Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

CO ($18.30)
Button ($9.80)
SB ($14.75)
Hero ($25)
UTG ($5.55)
UTG+1 ($36.20)
MP1 ($7.75)
MP2 ($25)

Preflop: Hero is BB with T[img]/images/graemlins/club.gif[/img], T[img]/images/graemlins/heart.gif[/img].
<font color="#666666">5 folds</font>, Button calls $0.25, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $1.5</font>, Button calls $1.25.

Flop: ($3.10) Q[img]/images/graemlins/spade.gif[/img], 6[img]/images/graemlins/heart.gif[/img], 7[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $2.25</font>, Button calls $2.25.

<font color="blue"> No specific reads, loose table. Trying a standard c-bet against one opponent. </font>

Turn: ($7.60) T[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, Button checks.

<font color="blue"> Ok that´s the spot where they get aggressiv close to every time I give up when I have nothing to continue with. So I wait for his bet. Not this time, though. </font>

River: ($7.60) 9[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets $5.25</font>, Hero calls $5.25.

<font color="blue"> I´m haunted by this kind of board at the moment. Don´t know what to do now. I underreped my hand a lot at the turn. Can I call? </font>

Final Pot: $18.10