KK in trouble (NL25)

[gunslingner]

After playing NL100 for about a month and some major downswing I'm back at NL25. Had some arguement with my bro about this hand.

No reads except this is NL25 [img]/images/graemlins/grin.gif[/img]

Party NL25(6max), effective stacks - 25


Hero opens UTG to 1.5$ with red KK, Button calls, BB calls

FLOP(~5$) 9c 10s 9s

BB checks, Hero bets 3, Button raises to 15, bb folds.

Hero?