Always the nuts?

[aba20]

$1.50 $3.00 on prima. Just sat down so no reads on villian.

MP limps small blind (villian) completes, Hero checks in Big blind with 7 [img]/images/graemlins/club.gif[/img]2 [img]/images/graemlins/diamond.gif[/img]

Pot: $9.00

Flop: 9 [img]/images/graemlins/heart.gif[/img]7 [img]/images/graemlins/diamond.gif[/img]2 [img]/images/graemlins/heart.gif[/img]

Villian leads for $8, hero raises to $26, MP folds, villian calls.

pot: $62

Turn: 3 [img]/images/graemlins/spade.gif[/img]

Villian checks, hero bets $62, villian calls

Pot: $186

River: K [img]/images/graemlins/heart.gif[/img]

Villian goes allin for $156

I see this quite a bit is paying off standard? What would be diferent if I had 2 [img]/images/graemlins/diamond.gif[/img]2 [img]/images/graemlins/spade.gif[/img]?