50 NL, KK pf, sort of seen from the other side

[yapee]

Villain is 20/15/3 (in fact I am villain)

Ultimate Bet - No Limit Hold'em Cash Game - $0.25/$0.50 Blinds - 5 Players - (LegoPoker Hand History Converter)

SB: $67.95
BB: $70.55
Hero (UTG): $76.80
CO: $76.85
BTN: $5.25

Preflop: Hero is dealt K K[img]/images/graemlins/heart.gif[/img] (5 Players)
<font color="red">Hero raises to $1.75</font>, 3 folds, <font color="red">BB raises to $5.50</font>, <font color="red">Hero raises to $16.75</font>, <font color="red">BB raises to $50.50</font>, Hero ?

So? Should Hero be convinced about the villain holding AA now?