Monsterflop, can I get away?

[Deelah]

PokerStars MTT $50 PL Texas, level 2, blinds 15/30 (8 handed)
My stack is T1255 and Button has me well covered - T2895.

Preflop: Hero is SB with 8[img]/images/graemlins/spade.gif[/img], 9[img]/images/graemlins/spade.gif[/img]. Hero posts the small blind of 15.
UTG folds, UTG+1 folds, MP1 folds, MP2 folds, CO folds, Button calls, Hero (poster) completes, BB checks.

Flop: 9[img]/images/graemlins/diamond.gif[/img], 8[img]/images/graemlins/heart.gif[/img], 5[img]/images/graemlins/club.gif[/img] <font color="blue">(3 players)</font>
Hero checks, BB checks, <font color="CC3333">Button bets 60</font>, <font color="CC3333">Hero raises to 180</font>, BB folds, Button calls.

Turn: T[img]/images/graemlins/heart.gif[/img] <font color="blue">(2 players)</font>
<font color="CC3333">Hero bets 450</font>, <font color="CC3333">Button raises to 1110</font>, Hero calls 595 (All-In).

River: Q[img]/images/graemlins/spade.gif[/img] <font color="blue">(2 players, 1 all-in)</font>

Button shows 7[img]/images/graemlins/diamond.gif[/img], 6[img]/images/graemlins/spade.gif[/img] for a flopped straight.

Final Pot: Too big in the wrong direction [img]/images/graemlins/smile.gif[/img]

I got a cheap flop as I wanted in the small blind and hit the flop real good. Because the button limped I put him on AA, KK (then I would prop. win a huge pot) or some trash (like 76o...) and I thought I had him beat, at least on the flop..
Maybe he could play that way with a PP looking for a set too, actually he could have anything [img]/images/graemlins/laugh.gif[/img]

Could I get away from this? Slow down on the turn? I feel I played it bad now but the two pairs made me feel excited [img]/images/graemlins/smile.gif[/img]
Ok, now I lost the red thread the rest is for you. Any comments are appreciated, thx!