Teach me how to win with KK...

[Torm]

***** Hand History for Game 6415298686 *****
$100 USD NL Texas Hold'em - Monday, October 15, 16:02:45 ET 2007
Table Table 128358 (Real Money)
Seat 3 is the button
Total number of players : 6
Seat 2: lacanisse ( $98.50 USD )
Seat 3: State0fMind ( $255.23 USD )
Seat 4: jigaboo_jones ( $207.50 USD )
Seat 6: nlwolf ( $198.66 USD )
Seat 5: TormII ( $100 USD )
Seat 1: Praepman ( $98.50 USD )
jigaboo_jones posts small blind [$0.50 USD].
TormII posts big blind [$1 USD].
>You have options at Table 128027 Table!.
lacanisse posts big blind + dead [$1.50].
** Dealing down cards **
Dealt to TormII [ Ks Kc ]
>You have options at Table 128027 Table!.
nlwolf folds
>You have options at Table 128027 Table!.
Praepman raises [$5 USD]
lacanisse calls [$4 USD]
State0fMind folds
>You have options at Table 126966 Table!.
>You have options at Table 127287 (No DP) Table!.
jigaboo_jones folds
>You have options at Table 128027 Table!.
>You have options at Table 126966 Table!.
TormII raises [$19 USD]
>You have options at Table 127287 (No DP) Table!.
Praepman folds
lacanisse calls [$15 USD]
** Dealing Flop ** [ 5c, 3h, 6h ]
>You have options at Table 128027 Table!.
>You have options at Table 127287 (No DP) Table!.
TormII bets [$35 USD]
lacanisse is all-In [$78 USD]
TormII calls [$43 USD]
** Dealing Turn ** [ 7h ]
** Dealing River ** [ Ad ]
TormII shows [ Ks, Kc ]a pair of Kings.
lacanisse shows [ Jd, 4d ]a straight Three to Seven.
lacanisse wins $199 USD from the main pot with a straight, Three to Seven.

I'm obv. doing something wrong.